Clarify folding pipeline and options handling

Refine folding-range pipeline design around raw spans
Extract folding range pipeline into standalone change
2026-04-24 05:01:44 +08:00 · 2026-04-23 07:59:17 +08:00 · 2026-04-23 07:53:11 +08:00 · 2026-04-23 02:58:26 +08:00 · 2026-04-23 01:40:41 +08:00 · 2026-04-20 00:21:31 +08:00
605 changed files with 71575 additions and 26560 deletions
--- a/.clang-format
+++ b/.clang-format
@@ -1,5 +1,4 @@
 # clang-format configuration
-# compatible with clang-format 18

 UseTab: Never
 ColumnLimit: 100
@@ -73,7 +72,7 @@ SpaceBeforeParensOptions:
  AfterFunctionDeclarationName: false
  AfterFunctionDefinitionName: false
  AfterIfMacros: false
-  AfterOverloadedOperator: true
+  AfterOverloadedOperator: false
  AfterRequiresInClause: true
  AfterRequiresInExpression: false
  BeforeNonEmptyParentheses: false
@@ -93,11 +92,62 @@ SpacesInParensOptions:

 SpacesInSquareBrackets: false

+WrapNamespaceBodyWithEmptyLines: Always
 # Order
 QualifierAlignment: Custom
 QualifierOrder: ["constexpr", "const", "inline", "static", "type"]
-SortIncludes: Never
+SortIncludes: true
 SortUsingDeclarations: Never
-IncludeBlocks: Merge
+IncludeBlocks: Regroup
+IncludeCategories:
+  - Regex: '^["<](spdlog|toml\+\+|coraing|cpptrace|flatbuffers|kota)/'
+    Priority: 30
+    SortPriority: 31
+
+  - Regex: '^["<](llvm)/'
+    Priority: 30
+    SortPriority: 32
+
+  - Regex: '^["<](clang)/'
+    Priority: 30
+    SortPriority: 33
+
+  - Regex: '^["<](clang-tidy)/'
+    Priority: 30
+    SortPriority: 34
+
+  - Regex: '^["<](Test)/'
+    Priority: 20
+    SortPriority: 22
+
+  - Regex: "^<.*"
+    Priority: 10
+    SortPriority: 10
+
+  - Regex: '^".*/.*"'
+    Priority: 20
+    SortPriority: 23
+
+  - Regex: ".*"
+    Priority: 20
+    SortPriority: 21

 ForEachMacros: ["REFLECTABLE_RECORD"]
+NamespaceMacros: [TEST_SUITE]
+
+KeepEmptyLines:
+  AtEndOfFile: false
+  AtStartOfBlock: false
+  AtStartOfFile: false
+
+StatementMacros:
+  - DECO_CFG_START
+  - DECO_CFG
+  - DECO_CFG_END
+  - DecoKV
+  - DecoFlag
+  - DecoComma
+  - DecoInput
+  - DecoPack
+  - DecoKVStyled
+  - DecoMulti
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -0,0 +1,50 @@
+---
+Checks: >
+  -*,
+  bugprone-*,
+  modernize-*,
+  performance-*,
+  readability-*,
+  -modernize-use-trailing-return-type,
+  -readability-magic-numbers,
+  -readability-else-after-return,
+  -readability-braces-around-statements,
+  -readability-avoid-const-params-in-decls,
+  -readability-named-parameter,
+  -readability-implicit-bool-conversion,
+  -readability-use-anyofallof,
+  -bugprone-easily-swappable-parameters,
+  -bugprone-exception-escape,
+  -bugprone-narrowing-conversions,
+  -modernize-use-nodiscard,
+
+WarningsAsErrors: ""
+
+HeaderFilterRegex: "(src|tests)/.*"
+
+CheckOptions:
+  # Naming conventions matching project style
+  - key: readability-identifier-naming.ClassCase
+    value: CamelCase
+  - key: readability-identifier-naming.StructCase
+    value: CamelCase
+  - key: readability-identifier-naming.EnumCase
+    value: CamelCase
+  - key: readability-identifier-naming.EnumConstantCase
+    value: CamelCase
+  - key: readability-identifier-naming.TemplateParameterCase
+    value: CamelCase
+  - key: readability-identifier-naming.TypeAliasCase
+    value: CamelCase
+  - key: readability-identifier-naming.FunctionCase
+    value: lower_case
+  - key: readability-identifier-naming.MethodCase
+    value: lower_case
+  - key: readability-identifier-naming.VariableCase
+    value: lower_case
+  - key: readability-identifier-naming.ParameterCase
+    value: lower_case
+  - key: readability-identifier-naming.MemberCase
+    value: lower_case
+  - key: readability-identifier-naming.NamespaceCase
+    value: lower_case
--- a/.clangd
+++ b/.clangd
@@ -1,2 +0,0 @@
-Diagnostics:
-  UnusedIncludes: None
--- a/.claude/CLAUDE.md
+++ b/.claude/CLAUDE.md
@@ -0,0 +1,268 @@
+# clice — Project Guide
+
+## Project Overview
+
+clice is a next-generation C++ language server (LSP) built on LLVM/Clang, targeting modern C++ (C++20/23). It uses a multi-process architecture with a master server coordinating stateless and stateful workers.
+
+## Core Correction Patterns — Lessons from Past Interactions
+
+The following patterns were extracted from extensive real-world collaboration. These are recurring mistakes that MUST be avoided. Read them carefully — they represent hard-won lessons, not hypothetical concerns.
+
+### Pattern 1: Misjudging Real-World Priorities
+
+AI tends to optimize whatever metric looks most impressive, rather than what actually matters in the user's real scenario.
+
+**Example**: During performance optimization, the AI proudly reported "hot cache is 4-7x faster!" — but the function in question runs at LSP server startup, which is ALWAYS a cold start. Optimizing hot cache was completely meaningless.
+
+**Rule**: Before optimizing or analyzing anything, first understand the REAL usage scenario. Ask yourself: "When does this code actually run? What does the user actually experience?" Do not chase metrics that look good on paper but are irrelevant in practice.
+
+### Pattern 2: Pushing Without Local Verification
+
+The most common and most damaging pattern. AI proposes a fix, pushes it immediately, CI fails, then another fix, push, fail again — wasting CI cycles and the user's time.
+
+**Rule**: NEVER push code that you haven't verified locally. Before every push:
+
+- Build locally with the same configuration CI uses.
+- Run the relevant tests locally and confirm they pass.
+- If you cannot reproduce the CI environment locally, say so — do not just "try and see."
+- "It compiles" is NOT sufficient. Tests must pass.
+
+### Pattern 3: Superficial Refactoring
+
+When asked to refactor, AI tends to do mechanical code movement (copy functions from A to B) without understanding the deeper design intent (ownership, responsibility boundaries, API cleanliness).
+
+**Example**: When splitting `MasterServer` into `Workspace` and `Session`, the AI moved functions but kept ugly APIs like `f(path_id, sessions_map)` instead of the clean `f(Session&)` that the refactoring was meant to achieve.
+
+**Rule**: When refactoring, understand the WHY. Ask: "What design problem is this refactoring solving?" If you're just moving code around without improving the abstractions, you're not refactoring — you're rearranging deck chairs.
+
+### Pattern 4: Fixing Only the Immediate Instance, Not the Pattern
+
+When given a cleanup instruction, AI applies it to the single file or function currently being discussed, ignoring all other occurrences in the project.
+
+**Example**: User says "remove decorative `===` comment separators." AI removes them from `workspace.cpp` only. User has to say: "The other files too!"
+
+**Rule**: When given a cleanup or style instruction, apply it project-wide. Use `Grep` to find ALL occurrences and fix them all in one pass. Think: "Where else does this pattern appear?"
+
+### Pattern 5: Never Skip, Disable, or Work Around Failing Tests
+
+When stuck on a difficult bug (especially flaky CI, race conditions, platform-specific issues), AI may propose marking tests as `continue-on-error`, skipping them, or adding `expected-failure` annotations to make CI green.
+
+**Rule**: This is ABSOLUTELY FORBIDDEN. If a test fails, fix the root cause. There are ZERO exceptions. Skipping a test to make CI green is not "fixing" — it is hiding a bug. If you ever find yourself thinking "maybe we should just skip this test," stop and reconsider your approach entirely.
+
+### Pattern 6: Excessive Confirmation Seeking vs. Premature Execution
+
+AI oscillates between two extremes: asking "should I do X?" for every trivial decision, or silently executing major changes without confirmation.
+
+**Rule**: Calibrate based on reversibility and impact:
+
+- **Small, reversible changes** (formatting, renaming a local variable, adding a test): just do it.
+- **Architecture decisions, API changes, large refactors**: propose the plan first, wait for confirmation.
+- **Pushing to remote, creating PRs, modifying CI**: always confirm.
+- When the user says "go ahead" or "do it," execute fully without asking again mid-way.
+
+## Code Reuse & Understanding Before Implementation
+
+**This is the single most important rule in this project.** Before writing ANY new code, you MUST thoroughly read and understand the existing codebase first. This project has a rich set of utilities, abstractions, and patterns already in place — duplicating them wastes effort and creates maintenance burden.
+
+Concrete requirements:
+
+1. **Read before you write.** Before implementing a feature or fix, explore the relevant modules in `src/`. Search for existing helpers, utilities, and patterns that solve the same or similar problems. Use `Grep`, `Glob`, and `Agent` tools to investigate thoroughly — do not assume something doesn't exist just because you haven't seen it yet.
+
+2. **Reuse existing infrastructure.** This project already has:
+   - A `Lexer` class (`src/syntax/lexer.h`) — do not hand-write token scanning logic.
+   - A `PositionMapper` for source location conversion — do not reimplement offset-to-line/column math.
+   - `CompilationUnitRef` methods (`decompose_location`, `decompose_range`, `file_path`, `directives`, etc.) — use them instead of raw Clang APIs.
+   - `SemanticVisitor` for AST traversal — extend it, do not write custom recursive AST walkers.
+   - `Tester` framework for unit tests with VFS, annotation support, and multi-phase compilation — use it, do not create ad-hoc test setups.
+   - Utility functions in `src/support/` — check there before writing new helpers.
+
+3. **Follow established patterns.** When adding a new feature (e.g., a new LSP request handler), look at how 2-3 existing features of the same kind are implemented. Match their structure: same file organization, same function signatures, same error handling patterns. If every other feature in `src/feature/` follows a certain pattern, yours should too.
+
+4. **Do not reinvent what the project already has.** If you find yourself writing a helper function that feels generic (string manipulation, path handling, JSON serialization, source range conversion), STOP and search the codebase first. There is a high probability it already exists. Creating duplicates leads to inconsistencies and bugs when one copy gets updated but the other doesn't.
+
+5. **When in doubt, ask.** If you're unsure whether an existing utility covers your use case or whether to extend an existing abstraction vs. create a new one, ask the user rather than guessing.
+
+## Source Layout
+
+- `src/server/` — LSP server core: master server, compiler, indexer, stateful/stateless workers
+- `src/feature/` — LSP feature implementations: hover, completion, document links, semantic tokens, etc.
+- `src/compile/` — Compilation orchestration: compilation unit, directives, diagnostics
+- `src/index/` — Symbol indexing: TUIndex, ProjectIndex, MergedIndex, include graph
+- `src/semantic/` — Semantic analysis: symbol kinds, relations, AST visitor, template resolver
+- `src/syntax/` — Lexer, scanner, token types, dependency graph
+- `src/command/` — CLI parsing, compilation database, toolchain detection
+- `src/support/` — Utilities: logging, filesystem, JSON, string helpers
+
+## Build System
+
+- Uses **pixi** for environment management and **CMake + Ninja** for building.
+- Two build types: `Debug` and `RelWithDebInfo` (default).
+- Build output goes to `build/[type]/`.
+- See `/build`, `/test`, `/format` commands for common operations.
+
+## Commit Message Format
+
+Use **conventional commits** — enforced by CI:
+
+```
+<type>(<scope>): <short description>
+```
+
+- **Types**: `feat`, `fix`, `refactor`, `chore`, `docs`, `ci`, `test`
+- **Scopes**: match `src/` subdirectories or feature names, e.g. `completion`, `server`, `index`, `tests`, `document links`
+- Keep the subject line under 70 characters.
+
+## Tests
+
+Three types of tests, all must pass before committing:
+
+- **Unit tests** (`tests/unit/`): C++ tests using the project's own test framework. Test names should be at most 4 words.
+- **Integration tests** (`tests/integration/`): Python pytest tests that start a real clice server and communicate via LSP.
+- **Smoke tests** (`tests/smoke/`): Replay recorded LSP sessions via `tests/replay.py`.
+
+### Integration Test Style
+
+- Keep tests concise. Do NOT write large comment blocks explaining the test layout or expected behavior.
+- Use descriptive test function names and short inline comments only where logic is non-obvious.
+
+## Pre-PR Review
+
+Before opening a PR, launch **3 parallel subagents** to review the diff independently:
+
+1. **Correctness reviewer**: Check for logic errors, edge cases, undefined behavior, and off-by-one mistakes.
+2. **Style reviewer**: Verify the code follows this project's naming conventions, coding style, and CLAUDE.md rules.
+3. **Test reviewer**: Confirm test coverage is adequate — new functionality has tests, edge cases are covered, and no existing tests were broken or weakened.
+
+Each agent should read the full diff (`git diff main...HEAD`) and report issues. Fix all reported issues before opening the PR.
+
+## Pre-commit Checklist
+
+Before committing code, you MUST:
+
+1. **Run `pixi run format`** to format all source files.
+2. **Pass all three types of tests:**
+   - Unit tests: `pixi run unit-test [type]`
+   - Integration tests: `pixi run integration-test [type]`
+   - Smoke tests: `pixi run smoke-test [type]`
+3. **All test failures must be fixed before committing.** This is a HARD REQUIREMENT with NO exceptions:
+   - If a test fails, it MUST be fixed before you commit. Do NOT commit with known failures.
+   - Do NOT skip, disable, or mark tests as expected-failure to work around breakage.
+   - Do NOT argue "this test was already broken before my changes" — if it fails on your branch, it is YOUR responsibility to fix it before committing. The main branch CI is green; any failure on your branch is caused by your changes, period.
+   - Do NOT defer fixing to a follow-up PR. Fix it NOW, in this branch, before committing.
+
+---
+
+## C++ Coding Style
+
+### Template & Type Traits
+
+- Do NOT blindly add `std::remove_cvref_t` on every template parameter. Understand C++ template argument deduction rules:
+  - `template<typename T> void f(T x)` — `T` is always deduced as a non-reference, non-cv-qualified type. No need for `remove_cvref_t`.
+  - `template<typename T> void f(T& x)` — `T` is deduced as the referred-to type (possibly cv-qualified, but never a reference). No need for `remove_cvref_t` to strip references.
+  - `template<typename T> void f(const T& x)` — `T` is deduced as a non-const, non-reference type. No need for `remove_cvref_t`.
+  - `template<typename T> void f(T&& x)` — **forwarding reference**: `T` CAN be deduced as an lvalue reference (e.g., `int&`). This is the ONLY case where `std::remove_cvref_t<T>` is needed to get the bare type.
+  - Class template parameters and return types are also never deduced as references; don't add `remove_cvref_t` on them either.
+
+### Type Traits & Concepts (C++20/23)
+
+- This project targets C++20/23. Use variable templates directly for type traits — do NOT use the old pattern of wrapping a class template static member in a variable template. Prefer:
+
+  ```cpp
+  // Good: directly specialize a variable template
+  template<typename T>
+  inline constexpr bool is_my_type_v = false;
+
+  template<>
+  inline constexpr bool is_my_type_v<MyType> = true;
+  ```
+
+  ```cpp
+  // Bad: unnecessary class template wrapper
+  template<typename T>
+  struct is_my_type : std::false_type {};
+
+  template<>
+  struct is_my_type<MyType> : std::true_type {};
+
+  template<typename T>
+  inline constexpr bool is_my_type_v = is_my_type<T>::value;
+  ```
+
+- When defining a concept that checks a type trait, do NOT add `std::remove_cvref_t` unless you specifically intend the concept to see through references/cv-qualifiers. If the concept is meant for a bare type, just use `T` directly — the caller is responsible for passing the right type.
+
+  ```cpp
+  // Good
+  template<typename T>
+  concept MyTrait = is_my_type_v<T>;
+
+  // Bad: unnecessary remove_cvref_t
+  template<typename T>
+  concept MyTrait = is_my_type_v<std::remove_cvref_t<T>>;
+  ```
+
+### Naming Conventions
+
+- **Variables, member fields, function names**: `snake_case`. Class member fields do NOT use any special suffix/prefix (no trailing `_`, no `m_` prefix).
+- **Class names, template parameter names, enum names**: `PascalCase`. Exception: some class names also use `snake_case` — follow the existing style in the project.
+- **Enum values**: `PascalCase`.
+
+### String Literals
+
+- Prefer C++11 raw string literals `R"(...)"` over escaped strings. Avoid `\"`, `\\`, `\n` in string literals when a raw literal is cleaner.
+
+### Error Handling
+
+- **Prefer `if` with init-statements to tightly scope error variables**, but avoid them when they compromise code readability or flatten control flow.
+- **Omit redundant conditions:** If the error type provides an `operator bool` or evaluates implicitly (e.g., standard error codes, custom error wrappers), omit the redundant condition check.
+- **Avoid forced `else` branches:** If scoping the variable inside the `if` requires you to introduce an `else` block for the success path (especially when returning early on error), declare the variable in the local scope instead to keep the control flow flat.
+
+```cpp
+// Good: Omit redundant condition when the type has operator bool
+if (auto err = foo()) {
+    /* handle error */
+}
+
+// Bad: Redundant condition check
+if (auto err = foo(); err) {
+    /* handle error */
+}
+
+// Good: Use init-statement when a custom condition is required,
+// AND the variable isn't needed outside the if-statement
+if (auto result = foo(); !result.has_value()) {
+    /* handle error */
+}
+
+// --- Scope and Control Flow Considerations ---
+
+// Bad: Using init-statement forces an 'else' block because 'result'
+// goes out of scope, leading to nested/redundant code.
+if (auto result = get_data(); !result.has_value()) {
+    return result.error();
+} else {
+    process(result.value()); // Success path is forced into a nested block
+}
+
+// Good: Declare as a regular local variable to allow early exit
+// and keep the success path un-nested (flat control flow).
+auto result = get_data();
+if (!result.has_value()) {
+    return result.error();
+}
+process(result.value());
+```
+
+### Style
+
+- Prefer `[[maybe_unused]]` over `(void)` for intentionally unused variables or parameters.
+
+### Modern C++ Usage
+
+- Use C++20/23 APIs whenever possible. Do NOT use `<iostream>` facilities (`std::cout`, `std::cin`, `std::cerr`, etc.). Also do NOT use C-style I/O (`printf`, `fprintf`, etc.).
+- Prefer `std::ranges` / `std::views` APIs over raw loops and traditional `<algorithm>` calls.
+- If the project depends on LLVM, prefer LLVM's efficient data structures (e.g., `llvm::SmallVector`, `llvm::DenseMap`, `llvm::StringMap`, `llvm::StringRef`) over their `std` counterparts when appropriate.
+
+### Parameter Passing Preferences
+
+- For string parameters, prefer `llvm::StringRef` > `std::string_view` > `const std::string&`.
+- For array/span parameters, prefer `llvm::ArrayRef` > `std::span` > `const std::vector&`.
--- a/.claude/commands/build.md
+++ b/.claude/commands/build.md
@@ -0,0 +1,15 @@
+Build the project. Accepts an optional argument for build type: `Debug` or `RelWithDebInfo` (default).
+
+Available build commands:
+
+- CMake configure only: `pixi run cmake-config [type]`
+- CMake build only (skip configure): `pixi run cmake-build [type]`
+- Full build (configure + build): `pixi run build [type]`
+- Build a specific target: `pixi run cmake-build [type]` then `cmake --build build/[type] --target [target]`
+
+Common targets: `clice`, `unit_tests`
+
+Example usage:
+
+- `/build` — full build RelWithDebInfo
+- `/build Debug` — full build Debug
--- a/.claude/commands/format.md
+++ b/.claude/commands/format.md
@@ -0,0 +1,5 @@
+Format all project source files.
+
+Run: `pixi run format`
+
+Formats C++, Python, Lua, JS/TS, Markdown, JSON, TOML, and YAML files.
--- a/.claude/commands/test.md
+++ b/.claude/commands/test.md
@@ -0,0 +1,19 @@
+Run tests. Accepts an optional argument for build type: `Debug` or `RelWithDebInfo` (default).
+
+Available test commands:
+
+- Unit tests: `pixi run unit-test [type]`
+- Integration tests: `pixi run integration-test [type]`
+- Smoke tests: `pixi run smoke-test [type]`
+- All tests (unit + integration): `pixi run test [type]`
+
+Filtering specific tests:
+
+- Unit tests: `pixi run unit-test [type] --test-filter=SuiteName.CaseName`
+- Integration tests: `pixi run pytest tests/integration -k "test_name" --executable=./build/[type]/bin/clice`
+- Smoke tests: `pixi run python tests/replay.py tests/smoke/specific.jsonl --clice=./build/[type]/bin/clice`
+
+Example usage:
+
+- `/test` — run all tests (RelWithDebInfo)
+- `/test Debug` — run all tests (Debug)
--- a/.coderabbit.yaml
+++ b/.coderabbit.yaml
@@ -0,0 +1,7 @@
+chat:
+  auto_reply: false
+reviews:
+  auto_review:
+    enabled: true
+  summary:
+    enabled: false
--- a/.gitattributes
+++ b/.gitattributes
@@ -0,0 +1,9 @@
+# SCM syntax highlighting & preventing 3-way merges
+pixi.lock merge=binary linguist-language=YAML linguist-generated=true -diff
+
+# Force LF line endings for test data so that byte offsets from clang
+# (which reads from disk) match the content sent by didOpen in tests.
+tests/data/** text eol=lf
+
+# Treat trace files as binary to suppress text diffs
+tests/smoke/*.jsonl linguist-generated=true binary
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -1,10 +1,9 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-title: ''
-labels: ''
-assignees: ''
-
+title: ""
+labels: ""
+assignees: ""
 ---

 **Describe the bug**
@@ -12,6 +11,7 @@ A clear and concise description of what the bug is.

 **To Reproduce**
 Steps to reproduce the behavior:
+
 1. Go to '...'
 2. Click on '....'
 3. Scroll down to '....'
@@ -24,15 +24,17 @@ A clear and concise description of what you expected to happen.
 If applicable, add screenshots to help explain your problem.

 **Desktop (please complete the following information):**
- - OS: [e.g. iOS]
- - Browser [e.g. chrome, safari]
- - Version [e.g. 22]
+
+- OS: [e.g. iOS]
+- Browser [e.g. chrome, safari]
+- Version [e.g. 22]

 **Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
+
+- Device: [e.g. iPhone6]
+- OS: [e.g. iOS8.1]
+- Browser [e.g. stock browser, safari]
+- Version [e.g. 22]

 **Additional context**
 Add any other context about the problem here.
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -1,10 +1,9 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-title: ''
-labels: ''
-assignees: ''
-
+title: ""
+labels: ""
+assignees: ""
 ---

 **Is your feature request related to a problem? Please describe.**
--- a/.github/actions/setup-pixi/action.yml
+++ b/.github/actions/setup-pixi/action.yml
@@ -0,0 +1,20 @@
+name: "Setup Pixi"
+description: "setup pixi"
+
+inputs:
+  environments:
+    description: "The pixi environments to install (e.g. default, docs, test)"
+    required: false
+    default: "default"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Setup Pixi
+      uses: prefix-dev/setup-pixi@v0.9.3
+      with:
+        pixi-version: v0.67.0
+        environments: ${{ inputs.environments }}
+        activate-environment: true
+        cache: true
+        locked: true
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -0,0 +1,44 @@
+name: benchmark
+
+on:
+  workflow_dispatch:
+
+jobs:
+  benchmark:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-24.04, macos-15, windows-2025]
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - uses: ./.github/actions/setup-pixi
+
+      - name: Build scan_benchmark
+        run: |
+          pixi run cmake-config RelWithDebInfo ON -- -DCLICE_ENABLE_BENCHMARK=ON
+          cmake --build build/RelWithDebInfo --target scan_benchmark
+
+      - name: Clone LLVM
+        run: git clone --depth 1 https://github.com/llvm/llvm-project.git
+
+      - name: Generate CDB
+        run: |
+          cmake -B llvm-build -G Ninja \
+            -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
+            -DCMAKE_TOOLCHAIN_FILE="$(pwd)/cmake/toolchain.cmake" \
+            -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra;lld;lldb;mlir;polly;flang;bolt" \
+            -DLLVM_ENABLE_RUNTIMES="compiler-rt;libcxx;libcxxabi;libunwind" \
+            llvm-project/llvm
+
+      - name: Run benchmark
+        run: ./build/RelWithDebInfo/bin/scan_benchmark --runs 20 llvm-build/compile_commands.json
+
+      - name: Stop sccache server
+        if: runner.os == 'Windows'
+        run: pixi run -- sccache --stop-server || true
--- a/.github/workflows/build-llvm.yml
+++ b/.github/workflows/build-llvm.yml
@@ -0,0 +1,446 @@
+name: build llvm
+
+on:
+  workflow_dispatch:
+    inputs:
+      llvm_version:
+        description: "LLVM version to build (e.g., 21.1.8)"
+        required: true
+        type: string
+      skip_upload:
+        description: "Skip upload and PR creation (build-only mode)"
+        required: false
+        type: boolean
+        default: false
+      skip_pr:
+        description: "Skip PR creation (upload only, no PR)"
+        required: false
+        type: boolean
+        default: false
+  pull_request:
+    # if you want to run this workflow, change the branch name to main,
+    # if you want to turn off it, change it to non existent branch.
+    branches: [main-turn-off]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Native builds
+          - os: windows-2025
+            llvm_mode: RelWithDebInfo
+            lto: OFF
+          - os: windows-2025
+            llvm_mode: RelWithDebInfo
+            lto: ON
+          - os: ubuntu-24.04
+            llvm_mode: Debug
+            lto: OFF
+          - os: ubuntu-24.04
+            llvm_mode: RelWithDebInfo
+            lto: OFF
+          - os: ubuntu-24.04
+            llvm_mode: RelWithDebInfo
+            lto: ON
+          - os: macos-15
+            llvm_mode: Debug
+            lto: OFF
+          - os: macos-15
+            llvm_mode: RelWithDebInfo
+            lto: OFF
+          - os: macos-15
+            llvm_mode: RelWithDebInfo
+            lto: ON
+
+          # Cross-compilation builds
+          # macOS x64 (from arm64 macos-15)
+          - os: macos-15
+            llvm_mode: RelWithDebInfo
+            lto: OFF
+            target_triple: x86_64-apple-darwin
+          - os: macos-15
+            llvm_mode: RelWithDebInfo
+            lto: ON
+            target_triple: x86_64-apple-darwin
+
+          # Linux aarch64 (from x64 ubuntu-24.04)
+          - os: ubuntu-24.04
+            llvm_mode: RelWithDebInfo
+            lto: OFF
+            target_triple: aarch64-linux-gnu
+            pixi_env: cross-linux-aarch64
+          - os: ubuntu-24.04
+            llvm_mode: RelWithDebInfo
+            lto: ON
+            target_triple: aarch64-linux-gnu
+            pixi_env: cross-linux-aarch64
+
+          # Windows arm64 (from x64 windows-2025)
+          - os: windows-2025
+            llvm_mode: RelWithDebInfo
+            lto: OFF
+            target_triple: aarch64-pc-windows-msvc
+            pixi_env: cross-windows-arm64
+          - os: windows-2025
+            llvm_mode: RelWithDebInfo
+            lto: ON
+            target_triple: aarch64-pc-windows-msvc
+            pixi_env: cross-windows-arm64
+
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Free Disk Space
+        if: runner.os == 'Linux'
+        uses: jlumbroso/free-disk-space@main
+
+      - name: Increase Swap Space
+        if: runner.os == 'Linux'
+        run: |
+          echo "===== Initial Status ====="
+          sudo swapon --show
+          free -h
+
+          echo "===== Creating Swap File ====="
+          sudo swapoff -a
+          sudo fallocate -l 16G /mnt/swapfile
+          sudo chmod 600 /mnt/swapfile
+          sudo mkswap /mnt/swapfile
+          sudo swapon /mnt/swapfile
+
+          echo "===== Final Status ====="
+          sudo swapon --show
+          free -h
+          df -h
+
+      - uses: ./.github/actions/setup-pixi
+        with:
+          environments: ${{ matrix.pixi_env || 'package' }}
+
+      - name: Clone llvm-project
+        shell: bash
+        run: |
+          VERSION="${{ inputs.llvm_version || '21.1.8' }}"
+          echo "Cloning LLVM ${VERSION}..."
+          git clone --branch "llvmorg-${VERSION}" --depth 1 https://github.com/llvm/llvm-project.git .llvm
+
+      - name: Validate distribution components
+        shell: bash
+        run: |
+          python3 scripts/validate-llvm-components.py \
+            --llvm-src=.llvm \
+            --components-file=scripts/llvm-components.json
+
+      - name: Build LLVM (install-distribution)
+        shell: bash
+        run: |
+          ENV="${{ matrix.pixi_env || 'package' }}"
+          EXTRA_ARGS=""
+          if [[ -n "${{ matrix.target_triple }}" ]]; then
+            EXTRA_ARGS="--target-triple=${{ matrix.target_triple }}"
+          fi
+          pixi run -e "$ENV" build-llvm \
+            --llvm-src=.llvm \
+            --mode="${{ matrix.llvm_mode }}" \
+            --lto="${{ matrix.lto }}" \
+            --build-dir=build \
+            ${EXTRA_ARGS}
+
+      - name: Build clice using installed LLVM
+        if: ${{ !matrix.target_triple }}
+        shell: bash
+        run: |
+          pixi run cmake-config ${{ matrix.llvm_mode }} ON -- \
+            "-DCLICE_ENABLE_LTO=${{ matrix.lto }}" \
+            "-DLLVM_INSTALL_PATH=.llvm/build-install"
+          pixi run cmake-build ${{ matrix.llvm_mode }}
+
+      - name: Build clice using installed LLVM (cross-compile)
+        if: ${{ matrix.target_triple }}
+        shell: bash
+        run: |
+          ENV="${{ matrix.pixi_env || 'package' }}"
+          pixi run -e "$ENV" cmake-config ${{ matrix.llvm_mode }} ON -- \
+            "-DCLICE_ENABLE_LTO=${{ matrix.lto }}" \
+            "-DCLICE_TARGET_TRIPLE=${{ matrix.target_triple }}" \
+            "-DLLVM_INSTALL_PATH=.llvm/build-install"
+          pixi run -e "$ENV" cmake-build ${{ matrix.llvm_mode }}
+
+      - name: Verify cross-compiled binary architecture
+        if: ${{ matrix.target_triple && runner.os != 'Windows' }}
+        shell: bash
+        run: |
+          BINARY="build/${{ matrix.llvm_mode }}/bin/clice"
+          echo "Binary info:"
+          file "$BINARY"
+          case "${{ matrix.target_triple }}" in
+            aarch64-linux-gnu)   file "$BINARY" | grep -q "aarch64" ;;
+            x86_64-apple-darwin) file "$BINARY" | grep -q "x86_64" ;;
+          esac
+
+      - name: Upload cross-compiled clice for functional test
+        if: ${{ matrix.target_triple && matrix.lto == 'OFF' }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: cross-clice-${{ matrix.target_triple }}-${{ matrix.llvm_mode }}
+          path: |
+            build/${{ matrix.llvm_mode }}/bin/
+            build/${{ matrix.llvm_mode }}/lib/
+          if-no-files-found: error
+          retention-days: 1
+
+      - name: Run tests
+        if: ${{ !matrix.target_triple }}
+        shell: bash
+        run: pixi run test ${{ matrix.llvm_mode }}
+
+      # Prune is only supported for native builds (requires linking clice to test).
+      # Cross-compiled targets reuse the native prune manifest of the same OS.
+      - name: Prune LLVM static libraries (Debug/RelWithDebInfo no LTO)
+        if: (!matrix.target_triple) && (matrix.llvm_mode == 'Debug' || (matrix.llvm_mode == 'RelWithDebInfo' && matrix.lto == 'OFF'))
+        shell: bash
+        run: |
+          MANIFEST="pruned-libs-${{ matrix.os }}.json"
+          echo "LLVM_PRUNED_MANIFEST=${MANIFEST}" >> "${GITHUB_ENV}"
+          python3 scripts/prune-llvm-bin.py \
+            --action discover \
+            --install-dir ".llvm/build-install/lib" \
+            --build-dir "build/${{ matrix.llvm_mode }}" \
+            --max-attempts 60 \
+            --sleep-seconds 60 \
+            --manifest "${MANIFEST}"
+
+      - name: Upload pruned-libs manifest
+        if: (!matrix.target_triple) && matrix.llvm_mode == 'RelWithDebInfo' && matrix.lto == 'OFF'
+        uses: actions/upload-artifact@v4
+        with:
+          name: llvm-pruned-libs-${{ matrix.os }}
+          path: ${{ env.LLVM_PRUNED_MANIFEST }}
+          if-no-files-found: error
+          compression-level: 0
+
+      - name: Apply pruned-libs manifest (RelWithDebInfo + LTO, native only)
+        if: (!matrix.target_triple) && matrix.llvm_mode == 'RelWithDebInfo' && matrix.lto == 'ON'
+        shell: bash
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          MANIFEST="pruned-libs-${{ matrix.os }}.json"
+          python3 scripts/prune-llvm-bin.py \
+            --action apply \
+            --manifest "${MANIFEST}" \
+            --install-dir ".llvm/build-install/lib" \
+            --build-dir "build/${{ matrix.llvm_mode }}" \
+            --gh-run-id "${{ github.run_id }}" \
+            --gh-artifact "llvm-pruned-libs-${{ matrix.os }}" \
+            --gh-download-dir "artifacts" \
+            --max-attempts 60 \
+            --sleep-seconds 60
+
+      # For cross-compiled LTO builds, apply the native prune manifest.
+      # The unused library set is arch-independent (same API surface).
+      - name: Apply pruned-libs manifest (cross-compile + LTO)
+        if: matrix.target_triple && matrix.lto == 'ON'
+        shell: bash
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          MANIFEST="pruned-libs-${{ matrix.os }}.json"
+          python3 scripts/prune-llvm-bin.py \
+            --action apply \
+            --manifest "${MANIFEST}" \
+            --install-dir ".llvm/build-install/lib" \
+            --build-dir "build/${{ matrix.llvm_mode }}" \
+            --gh-run-id "${{ github.run_id }}" \
+            --gh-artifact "llvm-pruned-libs-${{ matrix.os }}" \
+            --gh-download-dir "artifacts" \
+            --max-attempts 60 \
+            --sleep-seconds 60
+
+      - name: Package LLVM install directory
+        shell: bash
+        run: |
+          MODE_TAG="releasedbg"
+          if [[ "${{ matrix.llvm_mode }}" == "Debug" ]]; then
+            MODE_TAG="debug"
+          fi
+
+          # Determine arch/platform/toolchain from target triple or runner OS
+          if [[ -n "${{ matrix.target_triple }}" ]]; then
+            case "${{ matrix.target_triple }}" in
+              x86_64-apple-darwin)
+                ARCH="x64"; PLATFORM="macos"; TOOLCHAIN="clang" ;;
+              aarch64-linux-gnu)
+                ARCH="aarch64"; PLATFORM="linux"; TOOLCHAIN="gnu" ;;
+              aarch64-pc-windows-msvc)
+                ARCH="aarch64"; PLATFORM="windows"; TOOLCHAIN="msvc" ;;
+            esac
+          else
+            ARCH="x64"
+            PLATFORM="linux"
+            TOOLCHAIN="gnu"
+            if [[ "${{ matrix.os }}" == windows-* ]]; then
+              PLATFORM="windows"
+              TOOLCHAIN="msvc"
+            elif [[ "${{ matrix.os }}" == macos-* ]]; then
+              ARCH="arm64"
+              PLATFORM="macos"
+              TOOLCHAIN="clang"
+            fi
+          fi
+
+          SUFFIX=""
+          if [[ "${{ matrix.lto }}" == "ON" ]]; then
+            SUFFIX="-lto"
+          fi
+          if [[ "${{ matrix.llvm_mode }}" == "Debug" && "${{ matrix.os }}" != windows-* ]]; then
+            SUFFIX="${SUFFIX}-asan"
+          fi
+
+          ARCHIVE="${ARCH}-${PLATFORM}-${TOOLCHAIN}-${MODE_TAG}${SUFFIX}.tar.xz"
+
+          set -eo pipefail
+          tar -C .llvm -cf - build-install | xz -T0 -9 -c > "${ARCHIVE}"
+          echo "LLVM_INSTALL_ARCHIVE=${ARCHIVE}" >> "${GITHUB_ENV}"
+
+      - name: Upload LLVM install artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.LLVM_INSTALL_ARCHIVE }}
+          path: ${{ env.LLVM_INSTALL_ARCHIVE }}
+          if-no-files-found: error
+
+  test-cross:
+    needs: build
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: macos-15-intel
+            llvm_mode: RelWithDebInfo
+            target_triple: x86_64-apple-darwin
+          - os: ubuntu-24.04-arm
+            llvm_mode: RelWithDebInfo
+            target_triple: aarch64-linux-gnu
+          - os: windows-11-arm
+            llvm_mode: RelWithDebInfo
+            target_triple: aarch64-pc-windows-msvc
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - uses: ./.github/actions/setup-pixi
+        with:
+          environments: test-run
+
+      - name: Download cross-compiled clice
+        uses: actions/download-artifact@v4
+        with:
+          name: cross-clice-${{ matrix.target_triple }}-${{ matrix.llvm_mode }}
+          path: build/${{ matrix.llvm_mode }}/
+
+      - name: Make binaries executable
+        if: runner.os != 'Windows'
+        run: chmod +x build/${{ matrix.llvm_mode }}/bin/*
+
+      - name: Run tests
+        run: pixi run -e test-run test ${{ matrix.llvm_mode }}
+
+  upload:
+    needs: build
+    if: ${{ !cancelled() && inputs.llvm_version && !inputs.skip_upload }}
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download all build artifacts
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: scripts/download-llvm.sh "${{ github.run_id }}"
+
+      - name: Upload to clice-llvm
+        env:
+          GH_TOKEN: ${{ secrets.UPLOAD_LLVM }}
+          TARGET_REPO: clice-io/clice-llvm
+        run: python3 scripts/upload-llvm.py "${{ inputs.llvm_version }}" "${TARGET_REPO}" "${{ github.run_id }}"
+
+      - name: Save manifest for update-clice job
+        uses: actions/upload-artifact@v4
+        with:
+          name: llvm-manifest-final
+          path: artifacts/llvm-manifest.json
+          if-no-files-found: error
+          compression-level: 0
+
+  update-clice:
+    needs: upload
+    if: ${{ !inputs.skip_pr }}
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download manifest
+        uses: actions/download-artifact@v4
+        with:
+          name: llvm-manifest-final
+          path: .
+
+      - name: Update manifest and version
+        run: |
+          python3 scripts/update-llvm-version.py \
+            --version "${{ inputs.llvm_version }}" \
+            --manifest-src llvm-manifest.json \
+            --manifest-dest config/llvm-manifest.json \
+            --package-cmake cmake/package.cmake
+
+      - name: Create or update PR
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          VERSION="${{ inputs.llvm_version }}"
+          BRANCH="chore/update-llvm-${VERSION}"
+          RUN_URL="https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          RELEASE_URL="https://github.com/clice-io/clice-llvm/releases/tag/${VERSION}"
+
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git checkout -b "${BRANCH}"
+          git add config/llvm-manifest.json cmake/package.cmake
+          git commit -m "chore: update LLVM to ${VERSION}"
+          git push --force-with-lease origin "${BRANCH}"
+
+          # Check if PR already exists for this branch
+          EXISTING_PR=$(gh pr list --head "${BRANCH}" --json number --jq '.[0].number // empty')
+
+          BODY="$(cat <<EOF
+          ## Summary
+          - Update LLVM prebuilt binaries to version ${VERSION}
+          - Updated \`config/llvm-manifest.json\` with new SHA256 hashes
+          - Updated \`cmake/package.cmake\` version string
+
+          **Artifacts:** [clice-llvm release](${RELEASE_URL})
+          **Build:** [workflow run](${RUN_URL})
+
+          > Auto-generated by build-llvm workflow
+          EOF
+          )"
+
+          if [[ -n "${EXISTING_PR}" ]]; then
+            echo "Updating existing PR #${EXISTING_PR}"
+            gh pr edit "${EXISTING_PR}" --body "${BODY}"
+          else
+            gh pr create \
+              --title "chore: update LLVM to ${VERSION}" \
+              --body "${BODY}" \
+              --base main
+          fi
--- a/.github/workflows/check-format.yml
+++ b/.github/workflows/check-format.yml
@@ -1,47 +1,40 @@
 name: format

 on:
-  push:
-    branches: [main]
-    paths:
-      - .clang-format
-      - "include/**"
-      - "src/**"
-      - "tests/**"
-
-  pull_request:
-    branches: [main]
-    paths:
-      - .clang-format
-      - "include/**"
-      - "src/**"
-      - "tests/**"
+  workflow_call:

 jobs:
-  check:
+  check-format:
    runs-on: ubuntu-latest
-
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

-      - name: Install clang-format
+      - uses: ./.github/actions/setup-pixi
+        with:
+          environments: format
+
+      - name: Validate update-llvm-version.py can still patch package.cmake
        run: |
-          wget -qO - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo tee /etc/apt/trusted.gpg.d/llvm.asc
-          echo "deb http://apt.llvm.org/noble/ llvm-toolchain-noble-20 main" | sudo tee /etc/apt/sources.list.d/llvm20.list
-          echo "deb-src http://apt.llvm.org/noble/ llvm-toolchain-noble-20 main" | sudo tee -a /etc/apt/sources.list.d/llvm20.list
-          sudo apt-get update && sudo apt-get install -y clang-format-20
-          clang-format-20 --version
+          python3 scripts/update-llvm-version.py --check \
+            --manifest-dest config/llvm-manifest.json \
+            --package-cmake cmake/package.cmake

-      - name: Run clang-format check
+      - name: Run formatter
+        run: pixi run format
+        continue-on-error: true
+
+      - name: Auto correct
+        uses: huacnlee/autocorrect-action@v2
+        with:
+          args: --lint ./docs
+        continue-on-error: true
+
+      - name: Check diff
        run: |
-          FILES=$(find ./ -type f | grep -P '^\.\/(src|include)(\/[^\/]+)*\/[^\/]+\.(h|cpp|cc)$')
-
-          UNFORMATTED=$(clang-format-20 --dry-run --Werror $FILES)
-
-          if [ $? -ne 0 ]; then
-            echo "× Some files are not properly formatted. Run clang-format to fix them."
+          if ! git diff --quiet; then
+            echo "::error::Formatting changes detected. Please run 'pixi run format' and commit the result."
+            git --no-pager diff --stat
+            git --no-pager diff
            exit 1
-          else
-            echo "✓ All files are properly formatted."
          fi
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -1,122 +0,0 @@
-name: cmake
-
-on:
-  push:
-    branches: [main]
-    paths:
-      - ".github/workflows/cmake.yml"
-      - "include/**"
-      - "src/**"
-      - "tests/**"
-      - "CMakeLists.txt"
-
-  pull_request:
-    branches: [main]
-    paths:
-      - ".github/workflows/cmake.yml"
-      - "include/**"
-      - "src/**"
-      - "tests/**"
-      - "CMakeLists.txt"
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        os: [ubuntu-24.04, windows-2025, macos-15]
-
-    runs-on: ${{ matrix.os }}
-
-    steps:
-      - name: Setup ninja
-        if: matrix.os == 'windows-2025'
-        uses: MinoruSekine/setup-scoop@v4.0.1
-        with:
-          buckets: main
-          apps: ninja
-
-      - name: Setup llvm & libstdc++ & cmake & ninja
-        if: matrix.os == 'ubuntu-24.04'
-        run: |
-          sudo apt update
-          sudo apt install -y gcc-14 g++-14 libstdc++-14-dev
-          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 100
-          sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-14 100
-          sudo update-alternatives --set gcc /usr/bin/gcc-14
-          sudo update-alternatives --set g++ /usr/bin/g++-14
-
-          wget https://apt.llvm.org/llvm.sh
-          chmod +x llvm.sh
-          sudo ./llvm.sh 20 all
-
-          sudo apt install -y cmake ninja-build
-
-      - name: Setup llvm@20 and lld
-        if: matrix.os == 'macos-15'
-        run: |
-          brew install llvm@20 lld@20
-
-      - name: Set up Python
-        if: matrix.os == 'windows-2025'
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup llvm binary
-        if: matrix.os == 'windows-2025'
-        run: |
-          curl -O -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/x64-windows-msvc-release.7z"
-          7z x x64-windows-msvc-release.7z "-o.llvm"
-
-      - name: Setup llvm binary
-        if: matrix.os == 'ubuntu-24.04'
-        run: |
-          mkdir -p ./.llvm
-          curl -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/x86_64-linux-gnu-debug.tar.xz" | tar -xJ -C ./.llvm
-
-      - name: Setup llvm binary
-        if: matrix.os == 'macos-15'
-        run: |
-          mkdir -p ./.llvm
-          curl -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/arm64-macosx-apple-debug.tar.xz" | tar -xJ -C ./.llvm
-
-      - name: Setup msvc sysroot for cmake
-        if: matrix.os == 'windows-2025'
-        uses: ilammy/msvc-dev-cmd@v1
-
-      - name: Build clice (release, windows)
-        if: matrix.os == 'windows-2025'
-        run: |
-          cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DLLVM_INSTALL_PATH="./.llvm" -DCLICE_ENABLE_TEST=ON
-          cmake --build build
-
-      - name: Build clice (debug, linux)
-        if: matrix.os == 'ubuntu-24.04'
-        run: |
-          cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang-20 -DCMAKE_CXX_COMPILER=clang++-20 -DLLVM_INSTALL_PATH="./.llvm" -DCLICE_ENABLE_TEST=ON
-          cmake --build build
-
-      - name: Build clice (debug, macos)
-        if: matrix.os == 'macos-15'
-        run: |
-          export PATH="/opt/homebrew/opt/llvm@20/bin:/opt/homebrew/opt/lld@20/bin:$PATH"
-          cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DLLVM_INSTALL_PATH="./.llvm" -DCLICE_ENABLE_TEST=ON
-          cmake --build build
-
-      - name: Install Python dependencies
-        run: pip install pytest pytest-asyncio pytest-xdist
-
-      - name: Run tests
-        if: matrix.os == 'windows-2025'
-        run: |
-          ./build/bin/unit_tests.exe --test-dir="./tests/data" --resource-dir="./.llvm/lib/clang/20"
-          pytest -s --log-cli-level=INFO tests/integration --executable=./build/bin/clice.exe --resource-dir="./.llvm/lib/clang/20"
-
-      - name: Run tests
-        if: matrix.os == 'ubuntu-24.04' ||  matrix.os == 'macos-15'
-        run: |
-          ./build/bin/unit_tests --test-dir="./tests/data" --resource-dir="./.llvm/lib/clang/20"
-          pytest -s --log-cli-level=INFO tests/integration --executable=./build/bin/clice --resource-dir="./.llvm/lib/clang/20"
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -0,0 +1,30 @@
+name: deploy
+
+on:
+  workflow_call:
+
+jobs:
+  deploy-docs:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - uses: ./.github/actions/setup-pixi
+        with:
+          environments: node
+
+      - name: Build docs
+        run: pixi run build-docs
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v4
+        if: github.ref == 'refs/heads/main'
+        with:
+          personal_token: ${{ secrets.PUBLISH_DOCS }}
+          external_repository: clice-io/docs
+          publish_dir: ./docs/.vitepress/dist
+          destination_dir: clice
+          keep_files: true
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -1,43 +0,0 @@
-name: deploy
-
-on:
-  push:
-    branches: [main]
-    paths:
-      - "docs/**"
-      - ".github/workflows/deploy.yml"
-
-jobs:
-  deploy:
-    runs-on: ubuntu-latest
-
-    permissions:
-      contents: write
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          cache: "npm"
-          cache-dependency-path: docs/package-lock.json
-
-      - name: Install dependencies in docs
-        run: |
-          cd docs
-          npm install
-
-      - name: Build docs
-        run: |
-          cd docs
-          npm run docs:build
-
-      - name: Deploy to GitHub Pages
-        uses: peaceiris/actions-gh-pages@v3
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: docs/.vitepress/dist
-          cname: clice.io
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -0,0 +1,133 @@
+name: main
+
+on:
+  push:
+    branches: [main]
+    tags: ["v*"]
+  pull_request:
+    branches: [main]
+
+jobs:
+  changes:
+    if: ${{ !startsWith(github.ref, 'refs/tags/') }}
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+    outputs:
+      format: ${{ steps.filter.outputs.format }}
+      docs: ${{ steps.filter.outputs.docs }}
+      clice: ${{ steps.filter.outputs.clice }}
+      vscode: ${{ steps.filter.outputs.vscode }}
+      cmake: ${{ steps.filter.outputs.cmake }}
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dorny/paths-filter@v3
+        id: filter
+        with:
+          filters: |
+            format:
+              - '**/*.{h,c,cpp,hpp,ts,js,lua,md,yml,yaml}'
+            docs:
+              - 'docs/**'
+              - '.github/workflows/deploy-docs.yml'
+            clice:
+              - 'src/**'
+              - 'include/**'
+              - 'CMakeLists.txt'
+              - '.github/workflows/publish-clice.yml'
+            vscode:
+              - 'editors/vscode/**'
+              - '.github/workflows/publish-vscode.yml'
+            cmake:
+              - 'CMakeLists.txt'
+              - 'src/**'
+              - 'include/**'
+              - 'tests/**'
+              - 'config/**'
+              - '.github/workflows/test-cmake.yml'
+
+  conventional-commit:
+    if: ${{ !startsWith(github.ref, 'refs/tags/') }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check conventional commit format
+        env:
+          IS_PR: ${{ github.event_name == 'pull_request' }}
+          PR_TITLE: ${{ github.event.pull_request.title }}
+          COMMIT_MSG: ${{ github.event.head_commit.message }}
+        run: |
+          pattern='^(feat|fix|refactor|chore|build|ci|docs|test|perf|style|revert)(\(.+\))?: .+'
+          if [[ "$IS_PR" == "true" ]]; then
+            subject="$PR_TITLE"
+            label="PR title"
+          else
+            subject=$(echo "$COMMIT_MSG" | head -n1)
+            label="Commit message"
+          fi
+          if [[ ! "$subject" =~ $pattern ]]; then
+            echo "::error::$label must follow conventional commit format: type(scope)?: description"
+            echo "  Valid types: feat, fix, refactor, chore, build, ci, docs, test, perf, style, revert"
+            echo "  Got: '$subject'"
+            exit 1
+          fi
+
+  format:
+    needs: changes
+    if: ${{ needs.changes.outputs.format == 'true' }}
+    uses: ./.github/workflows/check-format.yml
+
+  deploy:
+    needs: changes
+    if: ${{ needs.changes.outputs.docs == 'true' }}
+    permissions:
+      contents: write
+    uses: ./.github/workflows/deploy-docs.yml
+    secrets: inherit
+
+  # clice:
+  #   needs: changes
+  #   if: ${{ needs.changes.outputs.clice == 'true' }}
+  #   uses: ./.github/workflows/publish-clice.yml
+
+  vscode:
+    needs: changes
+    if: ${{ needs.changes.outputs.vscode == 'true' }}
+    uses: ./.github/workflows/publish-vscode.yml
+
+  cmake:
+    needs: changes
+    if: ${{ needs.changes.outputs.cmake == 'true' }}
+    uses: ./.github/workflows/test-cmake.yml
+
+  release-clice:
+    permissions:
+      contents: write
+    if: startsWith(github.ref, 'refs/tags/v')
+    uses: ./.github/workflows/publish-clice.yml
+    secrets: inherit
+
+  release-vscode:
+    permissions:
+      contents: write
+    if: startsWith(github.ref, 'refs/tags/v')
+    uses: ./.github/workflows/publish-vscode.yml
+    secrets: inherit
+
+  checks-passed:
+    if: ${{ always() && !startsWith(github.ref, 'refs/tags/') }}
+    needs:
+      - conventional-commit
+      - format
+      - deploy
+      # - clice
+      - vscode
+      - cmake
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check results
+        uses: re-actors/alls-green@release/v1
+        with:
+          allowed-skips: conventional-commit,format,deploy,clice,vscode,cmake
+          jobs: ${{ toJSON(needs) }}
--- a/.github/workflows/publish-clice.yml
+++ b/.github/workflows/publish-clice.yml
@@ -0,0 +1,100 @@
+name: clice
+
+on:
+  workflow_call:
+
+jobs:
+  publish-clice:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Native builds
+          - os: windows-2025
+            artifact_name: clice.zip
+            asset_name: clice-x64-windows-msvc.zip
+            symbol_artifact_name: clice-symbol.zip
+            symbol_asset_name: clice-x64-windows-msvc-symbol.zip
+
+          - os: ubuntu-24.04
+            artifact_name: clice.tar.gz
+            asset_name: clice-x86_64-linux-gnu.tar.gz
+            symbol_artifact_name: clice-symbol.tar.gz
+            symbol_asset_name: clice-x86_64-linux-gnu-symbol.tar.gz
+
+          - os: macos-15
+            artifact_name: clice.tar.gz
+            asset_name: clice-arm64-macos-darwin.tar.gz
+            symbol_artifact_name: clice-symbol.tar.gz
+            symbol_asset_name: clice-arm64-macos-darwin-symbol.tar.gz
+
+          # Cross-compilation builds
+          - os: macos-15
+            target_triple: x86_64-apple-darwin
+            pixi_env: cross-macos-x64
+            artifact_name: clice.tar.gz
+            asset_name: clice-x86_64-macos-darwin.tar.gz
+            symbol_artifact_name: clice-symbol.tar.gz
+            symbol_asset_name: clice-x86_64-macos-darwin-symbol.tar.gz
+
+          - os: ubuntu-24.04
+            target_triple: aarch64-linux-gnu
+            pixi_env: cross-linux-aarch64
+            artifact_name: clice.tar.gz
+            asset_name: clice-aarch64-linux-gnu.tar.gz
+            symbol_artifact_name: clice-symbol.tar.gz
+            symbol_asset_name: clice-aarch64-linux-gnu-symbol.tar.gz
+
+          - os: windows-2025
+            target_triple: aarch64-pc-windows-msvc
+            pixi_env: cross-windows-arm64
+            artifact_name: clice.zip
+            asset_name: clice-aarch64-windows-msvc.zip
+            symbol_artifact_name: clice-symbol.zip
+            symbol_asset_name: clice-aarch64-windows-msvc-symbol.zip
+
+    runs-on: ${{ matrix.os }}
+
+    defaults:
+      run:
+        shell: bash
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - uses: ./.github/actions/setup-pixi
+        with:
+          environments: ${{ matrix.pixi_env || 'package' }}
+
+      - name: Package (native)
+        if: ${{ !matrix.target_triple }}
+        run: pixi run package
+
+      - name: Package (cross-compile)
+        if: ${{ matrix.target_triple }}
+        run: |
+          ENV="${{ matrix.pixi_env }}"
+          pixi run -e "$ENV" package-config -- \
+            "-DCLICE_TARGET_TRIPLE=${{ matrix.target_triple }}"
+          pixi run -e "$ENV" cmake-build
+
+      - name: Upload Main Package to Release
+        if: startsWith(github.ref, 'refs/tags/v')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: build/RelWithDebInfo/${{ matrix.artifact_name }}
+          asset_name: ${{ matrix.asset_name }}
+          tag: ${{ github.ref }}
+          overwrite: true
+
+      - name: Upload Symbol Package to Release
+        if: startsWith(github.ref, 'refs/tags/v')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: build/RelWithDebInfo/${{ matrix.symbol_artifact_name }}
+          asset_name: ${{ matrix.symbol_asset_name }}
+          tag: ${{ github.ref }}
+          overwrite: true
--- a/.github/workflows/publish-vscode.yml
+++ b/.github/workflows/publish-vscode.yml
@@ -0,0 +1,38 @@
+name: vscode
+
+on:
+  workflow_call:
+
+jobs:
+  publish-vscode:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: editors/vscode
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - uses: ./.github/actions/setup-pixi
+        with:
+          environments: node
+
+      - name: Publish and Package to Marketplace
+        env:
+          VSCE_PAT: ${{ secrets.VSCE_PAT }}
+        run: |
+          FLAG="${{ contains(github.ref_name, '-') && '--pre-release' || '' }}"
+          pixi run build-vscode $FLAG
+
+          if [[ "${{ github.ref }}" == "refs/tags/"* ]]; then
+            pixi run publish-vscode -p "$VSCE_PAT" $FLAG
+          fi
+
+      - name: Upload .vsix to Release
+        uses: softprops/action-gh-release@v2
+        if: startsWith(github.ref, 'refs/tags/v')
+        with:
+          files: "editors/vscode/*.vsix"
+          tag_name: ${{ github.ref }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,91 +0,0 @@
-name: release
-
-permissions:
-  contents: write
-
-on:
-  push:
-    tags:
-      - 'v*'
-
-jobs:
-  package:
-    strategy:
-      matrix:
-        include:
-          - os: windows-2022
-            artifact_name: clice.7z
-            asset_name: clice-x64-windows-msvc.7z
-            toolchain: clang
-
-          - os: ubuntu-24.04
-            artifact_name: clice.tar.xz
-            asset_name: clice-x86_64-linux-gnu.tar.xz
-            toolchain: clang-20
-
-          - os: macos-15
-            artifact_name: clice.tar.xz
-            asset_name: clice-arm64-macos-darwin.tar.xz
-            toolchain: clang
-
-    runs-on: ${{ matrix.os }}
-
-    steps:
-      - name: Setup llvm
-        if: matrix.os == 'windows-2022'
-        uses: MinoruSekine/setup-scoop@v4.0.1
-        with:
-          buckets: main
-          apps: llvm
-
-      - name: Setup llvm & libstdc++ & cmake & ninja
-        if: matrix.os == 'ubuntu-24.04'
-        run: |
-          sudo apt remove llvm-16-linker-tools llvm-16 llvm-17-linker-tools llvm-17 llvm-18-linker-tools llvm-18
-          sudo apt update
-          sudo apt install -y gcc-14 g++-14 libstdc++-14-dev cmake ninja-build
-
-          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 100
-          sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-14 100
-          sudo update-alternatives --set gcc /usr/bin/gcc-14
-          sudo update-alternatives --set g++ /usr/bin/g++-14
-
-          wget https://apt.llvm.org/llvm.sh
-          chmod +x llvm.sh
-          sudo ./llvm.sh 20 all
-
-      - name: Setup llvm@20
-        if: matrix.os == 'macos-15'
-        run: |
-          brew install llvm@20
-
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup xmake
-        uses: xmake-io/github-action-setup-xmake@v1
-        with:
-          xmake-version: branch@master
-          actions-cache-folder: ".xmake-cache"
-          actions-cache-key: ${{ matrix.os }}
-
-      - name: Package
-        if: matrix.os != 'macos-15'
-        run: |
-          xmake config --yes --toolchain=${{ matrix.toolchain }} --enable_test=n --dev=n --release=y
-          xmake pack
-
-      - name: Package
-        if: matrix.os == 'macos-15'
-        run: |
-          xmake config --yes --toolchain=${{ matrix.toolchain }} --sdk=/opt/homebrew/opt/llvm@20 --enable_test=n --dev=n --release=y
-          xmake pack
-
-      - name: Upload binaries to release
-        uses: svenstaro/upload-release-action@v2
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: build/xpack/clice/${{ matrix.artifact_name }}
-          asset_name: ${{ matrix.asset_name }}
-          tag: ${{ github.ref }}
-          overwrite: true
--- a/.github/workflows/test-cmake.yml
+++ b/.github/workflows/test-cmake.yml
@@ -0,0 +1,150 @@
+name: cmake
+
+on:
+  workflow_call:
+
+env:
+  CCACHE_DIR: ${{ github.workspace }}/.cache/ccache
+  SCCACHE_DIR: ${{ github.workspace }}/.cache/sccache
+  CCACHE_BASEDIR: ${{ github.workspace }}
+  SCCACHE_BASEDIRS: ${{ github.workspace }}
+  CCACHE_COMPILERCHECK: content
+  CCACHE_MAXSIZE: 2G
+  SCCACHE_CACHE_SIZE: 2G
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Native builds
+          - os: windows-2025
+            build_type: RelWithDebInfo
+          - os: ubuntu-24.04
+            build_type: Debug
+          - os: ubuntu-24.04
+            build_type: RelWithDebInfo
+          - os: macos-15
+            build_type: Debug
+          - os: macos-15
+            build_type: RelWithDebInfo
+          # Cross-compile (build only; tests run on native runners)
+          - os: macos-15
+            build_type: RelWithDebInfo
+            target_triple: x86_64-apple-darwin
+            build_only: true
+          - os: ubuntu-24.04
+            build_type: RelWithDebInfo
+            target_triple: aarch64-linux-gnu
+            build_only: true
+            pixi_env: cross-linux-aarch64
+          - os: windows-2025
+            build_type: RelWithDebInfo
+            target_triple: aarch64-pc-windows-msvc
+            build_only: true
+            pixi_env: cross-windows-arm64
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - uses: ./.github/actions/setup-pixi
+        with:
+          environments: ${{ matrix.pixi_env || 'default' }}
+
+      - name: Restore compiler cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ runner.os == 'Windows' && '.cache/sccache' || '.cache/ccache' }}
+          key: ${{ runner.os }}-${{ matrix.build_type }}-${{ matrix.target_triple || 'native' }}-ccache-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-${{ matrix.build_type }}-${{ matrix.target_triple || 'native' }}-ccache-
+
+      - name: Zero cache stats
+        run: |
+          ENV="${{ matrix.pixi_env || 'default' }}"
+          if [ "$RUNNER_OS" = "Windows" ]; then
+            pixi run -e "$ENV" -- sccache --stop-server || true
+            pixi run -e "$ENV" -- sccache --zero-stats || true
+          else
+            pixi run -e "$ENV" -- ccache --zero-stats || true
+          fi
+        shell: bash
+
+      - name: Build (native)
+        if: ${{ !matrix.target_triple }}
+        run: pixi run build ${{ matrix.build_type }} ON
+
+      - name: Build (cross-compile)
+        if: ${{ matrix.target_triple }}
+        shell: bash
+        run: |
+          ENV="${{ matrix.pixi_env || 'default' }}"
+          pixi run -e "$ENV" cmake-config ${{ matrix.build_type }} OFF -- \
+            "-DCLICE_TARGET_TRIPLE=${{ matrix.target_triple }}"
+          pixi run -e "$ENV" cmake-build ${{ matrix.build_type }}
+
+      - name: Upload cross-compiled binaries
+        if: ${{ matrix.build_only }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: cross-build-${{ matrix.target_triple }}
+          path: |
+            build/${{ matrix.build_type }}/bin/
+            build/${{ matrix.build_type }}/lib/
+          if-no-files-found: error
+          retention-days: 1
+
+      - name: Run tests
+        if: ${{ !matrix.build_only }}
+        run: pixi run test ${{ matrix.build_type }}
+
+      - name: Print cache stats and stop server
+        if: always()
+        run: |
+          ENV="${{ matrix.pixi_env || 'default' }}"
+          if [ "$RUNNER_OS" = "Windows" ]; then
+            pixi run -e "$ENV" -- sccache --show-stats
+            pixi run -e "$ENV" -- sccache --stop-server || true
+          else
+            pixi run -e "$ENV" -- ccache --show-stats
+          fi
+        shell: bash
+
+  test-cross:
+    needs: build
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: macos-15-intel
+            build_type: RelWithDebInfo
+            target_triple: x86_64-apple-darwin
+          - os: ubuntu-24.04-arm
+            build_type: RelWithDebInfo
+            target_triple: aarch64-linux-gnu
+          - os: windows-11-arm
+            build_type: RelWithDebInfo
+            target_triple: aarch64-pc-windows-msvc
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - uses: ./.github/actions/setup-pixi
+        with:
+          environments: test-run
+
+      - name: Download cross-compiled binaries
+        uses: actions/download-artifact@v4
+        with:
+          name: cross-build-${{ matrix.target_triple }}
+          path: build/${{ matrix.build_type }}/
+
+      - name: Make binaries executable
+        if: runner.os != 'Windows'
+        run: chmod +x build/${{ matrix.build_type }}/bin/*
+
+      - name: Run tests
+        run: pixi run -e test-run test ${{ matrix.build_type }}
--- a/.github/workflows/upload-llvm.yml
+++ b/.github/workflows/upload-llvm.yml
@@ -0,0 +1,38 @@
+name: upload-llvm
+
+permissions:
+  contents: write
+
+on:
+  pull_request:
+    # if you want to run this workflow, change the branch name to main,
+    # if you want to turn off it, change it to non existent branch.
+    branches: [main-turn-off]
+
+  workflow_dispatch:
+    inputs:
+      workflow_id:
+        description: "Workflow run ID to pull artifacts from"
+        required: true
+        type: string
+      version:
+        description: "Release version/tag to publish (e.g., v1.2.3)"
+        required: true
+        type: string
+
+jobs:
+  upload:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download artifacts from workflow
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: scripts/download-llvm.sh "${{ inputs.workflow_id }}"
+
+      - name: Recreate release with artifacts
+        env:
+          GH_TOKEN: ${{ secrets.UPLOAD_LLVM }}
+          TARGET_REPO: clice-io/clice-llvm
+        run: python3 scripts/upload-llvm.py "${{ inputs.version }}" "${TARGET_REPO}" "${{ inputs.workflow_id }}"
--- a/.github/workflows/xmake.yml
+++ b/.github/workflows/xmake.yml
@@ -1,144 +0,0 @@
-name: xmake
-
-on:
-  push:
-    branches: [main]
-    paths:
-      - ".github/workflows/xmake.yml"
-      - "include/**"
-      - "src/**"
-      - "tests/**"
-      - "xmake.lua"
-
-  pull_request:
-    branches: [main]
-    paths:
-      - ".github/workflows/xmake.yml"
-      - "include/**"
-      - "src/**"
-      - "tests/**"
-      - "xmake.lua"
-
-jobs:
-  linux:
-    strategy:
-      matrix:
-        os: [ubuntu-24.04]
-        build_type: [release, debug]
-
-    runs-on: ${{ matrix.os }}
-
-    steps:
-      - name: Setup llvm & libstdc++ & cmake & ninja
-        run: |
-          sudo apt update
-          sudo apt install -y gcc-14 g++-14 libstdc++-14-dev
-          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 100
-          sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-14 100
-          sudo update-alternatives --set gcc /usr/bin/gcc-14
-          sudo update-alternatives --set g++ /usr/bin/g++-14
-
-          wget https://apt.llvm.org/llvm.sh
-          chmod +x llvm.sh
-          sudo ./llvm.sh 20 all
-
-          sudo apt install -y cmake ninja-build
-
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup xmake
-        uses: xmake-io/github-action-setup-xmake@v1
-        with:
-          xmake-version: branch@master
-          actions-cache-folder: ".xmake-cache"
-          actions-cache-key: ${{ matrix.os }}
-          package-cache: true
-          package-cache-key: ${{ matrix.os }}
-          build-cache: true
-          build-cache-key: ${{ matrix.os }}-${{ matrix.build_type }}
-
-      - name: Xmake configure
-        run: |
-          xmake config --yes --mode=${{ matrix.build_type }} --toolchain=clang-20
-
-      - name: Build clice
-        run: |
-          xmake build --verbose --diagnosis --all
-
-      - name: Run tests
-        run: xmake test --verbose
-
-  windows:
-    strategy:
-      matrix:
-        os: [windows-2025]
-
-    runs-on: ${{ matrix.os }}
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup xmake
-        uses: xmake-io/github-action-setup-xmake@v1
-        with:
-          xmake-version: branch@master
-          actions-cache-folder: ".xmake-cache"
-          actions-cache-key: ${{ matrix.os }}
-          package-cache: true
-          package-cache-key: ${{ matrix.os }}
-          build-cache: true
-          build-cache-key: ${{ matrix.os }}-${{ matrix.build_type }}
-
-      - name: Xmake configure
-        run: |
-          xmake config --yes --toolchain=clang
-
-      - name: Build clice
-        run: |
-          xmake build --verbose --diagnosis --all
-
-      - name: Run tests
-        run: xmake test --verbose
-
-  macos:
-    strategy:
-      matrix:
-        os: [macos-15]
-        build_type: [release, debug]
-
-    runs-on: ${{ matrix.os }}
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup llvm
-        run: |
-          brew install llvm@20
-
-      - name: Setup xmake
-        uses: xmake-io/github-action-setup-xmake@v1
-        with:
-          xmake-version: branch@master
-          actions-cache-folder: ".xmake-cache"
-          actions-cache-key: ${{ matrix.os }}
-          package-cache: true
-          package-cache-key: ${{ matrix.os }}
-          build-cache: true
-          build-cache-key: ${{ matrix.os }}-${{ matrix.build_type }}
-
-      - name: Xmake configure
-        run: |
-          xmake config --yes --ci=y --mode=${{ matrix.build_type }} --toolchain=clang --sdk=/opt/homebrew/opt/llvm@20
-
-      - name: Build clice
-        run: |
-          xmake build --verbose --diagnosis --all
-
-      - name: Run tests
-        run: |
-          # Workaround for MacOS
-          export PATH="/opt/homebrew/opt/llvm@20/bin:/opt/homebrew/opt/lld@20/bin:$PATH"
-          xmake test --verbose
--- a/.gitignore
+++ b/.gitignore
@@ -16,10 +16,6 @@
 *.dylib
 *.dll

-# Fortran module files
-*.mod
-*.smod
-
 # Compiled Static libraries
 *.lai
 *.la
@@ -31,17 +27,48 @@
 *.out
 *.app

-temp/
+# Fortran module files
+*.mod
+*.smod
+
+# Build & Toolchain
 *build*/
+temp/
 .cache/
-.clice/
+
 .llvm*/
-.xmake/
-.vscode/
+.clice/
+compile_commands.json
+perf.data
+flamegraph.svg
+
+# Nodejs & Web
+*.vsix
+dist/
+out/
+cache/
+node_modules/
+.vscode-test/
+
+# Python & Testing
 __pycache__/
 .pytest_cache/
 tests/unit/Local/

-**/node_modules
-docs/.vitepress/dist
-docs/.vitepress/cache
+# IDEs & Editors
+/.vscode/*
+!/.vscode/launch.json
+!/.vscode/tasks.json
+.vs/
+.idea/
+.clangd
+
+# pixi environments
+.env
+.pixi/*
+!.pixi/config.toml
+
+.codex/
+.claude/*
+!.claude/CLAUDE.md
+!.claude/commands/
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +0,0 @@
-repos:
-  - repo: https://github.com/pre-commit/mirrors-clang-format
-    rev: "v20.1.0"
-    hooks:
-      - id: clang-format
-        files: '^(src|include)(/[^/]+)*/[^/]+\.(h|cpp|cc)$'
--- a/.prettierrc.yaml
+++ b/.prettierrc.yaml
@@ -0,0 +1,23 @@
+# .prettierrc.yaml
+
+printWidth: 100
+tabWidth: 4
+useTabs: false
+semi: true
+singleQuote: false
+jsxSingleQuote: false
+quoteProps: "as-needed"
+trailingComma: "all"
+bracketSpacing: true
+arrowParens: "always"
+endOfLine: "lf"
+
+overrides:
+  - files: "*.md"
+    options:
+      proseWrap: "preserve"
+      tabWidth: 2
+
+  - files: ["*.json", "*.yaml", "*.yml", ".clang-format", ".clang-tidy"]
+    options:
+      tabWidth: 2
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -0,0 +1,83 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "lldb",
+      "request": "launch",
+      "name": "Debug clice",
+      "program": "${workspaceFolder}/build/Debug/bin/clice",
+      "args": ["--mode=socket", "--port=50051"],
+      "cwd": "${workspaceFolder}"
+    },
+    {
+      "type": "lldb",
+      "request": "launch",
+      "name": "Debug clice (socket, RelWithDebInfo)",
+      "program": "${workspaceFolder}/build/RelWithDebInfo/bin/clice",
+      "args": ["--mode=socket", "--port=50051"],
+      "cwd": "${workspaceFolder}"
+    },
+    {
+      "name": "VSCode Extension (pipe)",
+      "type": "extensionHost",
+      "request": "launch",
+      "args": [
+        "--disable-extension=llvm-vs-code-extensions.vscode-clangd",
+        "--disable-extension=ms-vscode.cpptools",
+        "--disable-extension=ms-vscode.cpptools-extension-pack",
+        "--extensionDevelopmentPath=${workspaceFolder}/editors/vscode"
+      ],
+      "env": {
+        "CLICE_MODE": "pipe"
+      },
+      "outFiles": ["${workspaceFolder}/editors/vscode/dist/**/*.js"],
+      "preLaunchTask": "npm: watch vscode ext"
+    },
+    {
+      "name": "VSCode Extension (socket)",
+      "type": "extensionHost",
+      "request": "launch",
+      "args": [
+        "--disable-extension=llvm-vs-code-extensions.vscode-clangd",
+        "--disable-extension=ms-vscode.cpptools",
+        "--disable-extension=ms-vscode.cpptools-extension-pack",
+        "--extensionDevelopmentPath=${workspaceFolder}/editors/vscode"
+      ],
+      "env": {
+        "CLICE_MODE": "socket"
+      },
+      "outFiles": ["${workspaceFolder}/editors/vscode/dist/**/*.js"],
+      "preLaunchTask": "npm: watch vscode ext"
+    },
+    {
+      "type": "lldb",
+      "request": "launch",
+      "name": "Unit Test",
+      "program": "${workspaceFolder}/build/Debug/bin/unit_tests",
+      "args": ["--test-dir=./tests/data", "--test-filter=${input:filter}"],
+      "cwd": "${workspaceFolder}"
+    },
+    {
+      "type": "lldb",
+      "request": "launch",
+      "name": "Release Unit Test",
+      "program": "${workspaceFolder}/build/RelWithDebInfo/bin/unit_tests",
+      "args": ["--test-dir=./tests/data", "--test-filter=${input:filter}"],
+      "cwd": "${workspaceFolder}"
+    }
+  ],
+  "compounds": [
+    {
+      "name": "clice + VSCode Extension (socket)",
+      "configurations": ["Debug clice", "VSCode Extension (socket)"],
+      "stopAll": true
+    }
+  ],
+  "inputs": [
+    {
+      "id": "filter",
+      "type": "promptString",
+      "description": "Unit Test Filter"
+    }
+  ]
+}
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -0,0 +1,42 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "npm: install vscode deps",
+      "type": "shell",
+      "command": "pnpm",
+      "args": ["install"],
+      "options": {
+        "cwd": "${workspaceFolder}/editors/vscode"
+      },
+      "problemMatcher": []
+    },
+    {
+      "label": "npm: watch vscode ext",
+      "type": "shell",
+      "command": "pnpm",
+      "args": ["run", "watch"],
+      "options": {
+        "cwd": "${workspaceFolder}/editors/vscode"
+      },
+      "dependsOn": "npm: install vscode deps",
+      "problemMatcher": "$ts-webpack-watch",
+      "isBackground": true,
+      "presentation": {
+        "reveal": "never",
+        "group": "watchers"
+      }
+    },
+    {
+      "label": "npm: package vscode ext",
+      "type": "shell",
+      "command": "pnpm",
+      "args": ["run", "package"],
+      "options": {
+        "cwd": "${workspaceFolder}/editors/vscode"
+      },
+      "dependsOn": "npm: install vscode deps",
+      "problemMatcher": []
+    }
+  ]
+}
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,145 +1,214 @@
-cmake_minimum_required(VERSION 3.20)
+cmake_minimum_required(VERSION 3.30)
+
 project(CLICE_PROJECT LANGUAGES C CXX)

 set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_SCAN_FOR_MODULES OFF)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin)

-# set llvm-libs install path
-if(NOT DEFINED LLVM_INSTALL_PATH OR LLVM_INSTALL_PATH STREQUAL "")
-    message(FATAL_ERROR "Error: The variable LLVM_INSTALL_PATH is not set. Please specify it with -DLLVM_INSTALL_PATH=<value>.")
-endif()
-get_filename_component(LLVM_INSTALL_PATH "${LLVM_INSTALL_PATH}" ABSOLUTE)
+include(GNUInstallDirs)
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/lib")
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/lib")
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin")

-if(NOT EXISTS "${LLVM_INSTALL_PATH}")
-    message(FATAL_ERROR "Error: The specified LLVM_INSTALL_PATH does not exist: ${LLVM_INSTALL_PATH}")
-endif()
-message(STATUS "Found llvm-libs ${LLVM_INSTALL_PATH}")
+option(CLICE_ENABLE_LTO "Enable ThinLTO for all targets" OFF)
+option(CLICE_USE_LIBCXX "Use libc++ instead of libstdc++" OFF)
+option(CLICE_OFFLINE_BUILD "Disable network downloads during configuration" OFF)
+option(CLICE_ENABLE_TEST "Build unit tests" OFF)
+option(CLICE_CI_ENVIRONMENT "Enable CI-specific configuration" OFF)
+option(CLICE_ENABLE_BENCHMARK "Build benchmarks" OFF)
+option(CLICE_RELEASE "Enable release packaging (LTO + strip + pack)" OFF)

-set(CMAKE_PREFIX_PATH "${LLVM_INSTALL_PATH}")
-
-# install dependencies
-include(FetchContent)
-if(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_BUILD_TYPE STREQUAL "Debug")
-    # libuv option
-    set(ASAN ON CACHE BOOL "" FORCE)
+# Global flags that apply to all targets (including FetchContent dependencies).
+if(NOT MSVC)
+    add_compile_options(-ffunction-sections -fdata-sections)
 endif()

-FetchContent_Declare(
-    tomlplusplus   
-    GIT_REPOSITORY https://github.com/marzer/tomlplusplus.git
-)
-FetchContent_Declare(
-    libuv
-    GIT_REPOSITORY https://github.com/libuv/libuv.git
-    GIT_TAG v1.x
-)
-FetchContent_MakeAvailable(tomlplusplus libuv)
-
-if(WIN32)
-    set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreadedDLL")
+if(APPLE)
+    # https://conda-forge.org/docs/maintainer/knowledge_base/#newer-c-features-with-old-sdk
+    add_compile_definitions(_LIBCPP_DISABLE_AVAILABILITY=1)
 endif()

-set(CLICE_CXX_FLAGS "-fno-rtti;-fno-exceptions;-Wno-deprecated-declarations;-Wno-undefined-inline;")
-set(CLICE_LINKER_FLAGS "")
+if(MSVC OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND
+            CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "MSVC"))
+    string(APPEND CMAKE_EXE_LINKER_FLAGS " -Wl,/OPT:REF")
+    string(APPEND CMAKE_SHARED_LINKER_FLAGS " -Wl,/OPT:REF")
+elseif(APPLE)
+    string(APPEND CMAKE_EXE_LINKER_FLAGS " -Wl,-dead_strip")
+    string(APPEND CMAKE_SHARED_LINKER_FLAGS " -Wl,-dead_strip")
+else()
+    string(APPEND CMAKE_EXE_LINKER_FLAGS " -static-libstdc++ -static-libgcc -Wl,--gc-sections")
+    string(APPEND CMAKE_SHARED_LINKER_FLAGS " -Wl,--gc-sections")
+endif()

 if(CLICE_USE_LIBCXX)
-    list(APPEND CLICE_CXX_FLAGS "-stdlib=libc++")
-    list(APPEND CLICE_LINKER_FLAGS "-stdlib=libc++")
+    string(APPEND CMAKE_CXX_FLAGS " -stdlib=libc++")
+    string(APPEND CMAKE_EXE_LINKER_FLAGS " -stdlib=libc++")
+    string(APPEND CMAKE_SHARED_LINKER_FLAGS " -stdlib=libc++")
+endif()
+
+if(CLICE_RELEASE)
+    set(CLICE_ENABLE_LTO ON)
+endif()
+
+if(CLICE_ENABLE_LTO)
+    string(APPEND CMAKE_C_FLAGS " -flto=thin")
+    string(APPEND CMAKE_CXX_FLAGS " -flto=thin")
+    string(APPEND CMAKE_EXE_LINKER_FLAGS " -flto=thin")
+    string(APPEND CMAKE_SHARED_LINKER_FLAGS " -flto=thin")
+    string(APPEND CMAKE_MODULE_LINKER_FLAGS " -flto=thin")
 endif()

-# Build-type specific flags
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")
-    message(STATUS "Debug build: Enabling -g -O0 -fsanitize=address")
-    list(APPEND CLICE_CXX_FLAGS "-g;-O0;-fsanitize=address")
-    list(APPEND CLICE_LINKER_FLAGS "-fsanitize=address")
-elseif(CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
-    message(STATUS "RelWithDebInfo build: Enabling -fsanitize=thread")
-    list(APPEND CLICE_CXX_FLAGS "-fsanitize=thread")
-    list(APPEND CLICE_LINKER_FLAGS "-fsanitize=thread")
+    add_compile_options(-fsanitize=address)
+
+    if(CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "MSVC")
+        # clang-cl (MSVC frontend): manually link ASan runtime since clang-cl
+        # doesn't handle -fsanitize=address linking automatically.
+        execute_process(
+            COMMAND ${CMAKE_CXX_COMPILER} --print-resource-dir
+            OUTPUT_VARIABLE CLANG_RESOURCE_DIR
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+        )
+        set(ASAN_LIB_PATH "${CLANG_RESOURCE_DIR}/lib/windows")
+        link_directories(${ASAN_LIB_PATH})
+
+        set(ASAN_LINK_FLAGS "")
+        list(APPEND ASAN_LINK_FLAGS "clang_rt.asan_dynamic-x86_64.lib")
+        list(APPEND ASAN_LINK_FLAGS "/wholearchive:clang_rt.asan_dynamic_runtime_thunk-x86_64.lib")
+
+        foreach(flag ${ASAN_LINK_FLAGS})
+            string(APPEND CMAKE_EXE_LINKER_FLAGS " ${flag}")
+            string(APPEND CMAKE_SHARED_LINKER_FLAGS " ${flag}")
+            string(APPEND CMAKE_MODULE_LINKER_FLAGS " ${flag}")
+        endforeach()
+    else()
+        string(APPEND CMAKE_EXE_LINKER_FLAGS " -fsanitize=address")
+        string(APPEND CMAKE_SHARED_LINKER_FLAGS " -fsanitize=address")
+    endif()
+
+    if(WIN32)
+        # Disable Identical COMDAT Folding in Debug to avoid ASan ODR false positives.
+        string(APPEND CMAKE_EXE_LINKER_FLAGS " -Wl,/OPT:NOICF")
+        string(APPEND CMAKE_SHARED_LINKER_FLAGS " -Wl,/OPT:NOICF")
+    endif()
+endif()
+
+include("${PROJECT_SOURCE_DIR}/cmake/package.cmake")
+
+# Project-specific options (not applied to third-party deps).
+add_library(clice_options INTERFACE)
+
+if(MSVC OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND
+         CMAKE_CXX_COMPILER_FRONTEND_VARIANT STREQUAL "MSVC"))
+    target_compile_options(clice_options INTERFACE /GR- /EHs-c- /Zc:preprocessor)
 else()
-    message(STATUS "Release/Default build: Enabling -O3")
-    list(APPEND CLICE_CXX_FLAGS "-O3")
-endif()
-
-# Linker flags for LLD
-if(WIN32)
-    list(APPEND CLICE_LINKER_FLAGS "-fuse-ld=lld-link")
-else()
-    list(APPEND CLICE_LINKER_FLAGS "-fuse-ld=lld")
-endif()
-
-# build clice core part as library
-file(GLOB_RECURSE CLICE_SOURCES
-    "${CMAKE_SOURCE_DIR}/src/AST/*.cpp"
-    "${CMAKE_SOURCE_DIR}/src/Async/*.cpp"
-    "${CMAKE_SOURCE_DIR}/src/Basic/*.cpp" 
-    "${CMAKE_SOURCE_DIR}/src/Compiler/*.cpp" 
-    "${CMAKE_SOURCE_DIR}/src/Index/*.cpp" 
-    "${CMAKE_SOURCE_DIR}/src/Feature/*.cpp"
-    "${CMAKE_SOURCE_DIR}/src/Server/*.cpp"
-    "${CMAKE_SOURCE_DIR}/src/Support/*.cpp"
-)
-add_library(clice-core STATIC "${CLICE_SOURCES}")
-
-# set llvm include and lib path
-add_library(llvm-libs INTERFACE IMPORTED)
-target_include_directories(llvm-libs INTERFACE "${LLVM_INSTALL_PATH}/include")
-if(WIN32)
-    target_compile_definitions(llvm-libs INTERFACE "CLANG_BUILD_STATIC")
-    target_link_libraries(llvm-libs INTERFACE version ntdll)
-endif()
-if(CMAKE_BUILD_TYPE STREQUAL "Debug")
-    target_link_directories(llvm-libs INTERFACE "${LLVM_INSTALL_PATH}/lib")
-    target_link_libraries(llvm-libs INTERFACE
-        LLVMSupport
-        LLVMFrontendOpenMP
-        LLVMOption
-        clangAST
-        clangASTMatchers
-        clangBasic
-        clangDependencyScanning
-        clangDriver
-        clangFormat
-        clangFrontend
-        clangIndex
-        clangLex
-        clangSema
-        clangSerialization
-        clangTooling
-        clangToolingCore
-        clangToolingInclusions
-        clangToolingInclusionsStdlib
-        clangToolingSyntax
+    target_compile_options(clice_options INTERFACE
+        -fno-rtti
+        -fno-exceptions
+        -Wno-deprecated-declarations
+        $<$<COMPILE_LANG_AND_ID:CXX,Clang,AppleClang>:-Wno-undefined-inline>
    )
-else()
-    file(GLOB LLVM_LIBRARIES CONFIGURE_DEPENDS "${LLVM_INSTALL_PATH}/lib/*${CMAKE_STATIC_LIBRARY_SUFFIX}")
-    target_link_libraries(llvm-libs INTERFACE ${LLVM_LIBRARIES})
 endif()

-target_compile_options(clice-core PUBLIC ${CLICE_CXX_FLAGS})
-target_link_options(clice-core PUBLIC ${CLICE_LINKER_FLAGS})
+if(WIN32)
+    target_link_libraries(clice_options INTERFACE version ntdll)
+endif()

-target_include_directories(clice-core PUBLIC "${CMAKE_SOURCE_DIR}/include")
-target_link_libraries(clice-core PUBLIC uv_a tomlplusplus::tomlplusplus llvm-libs)
-
-# clice executable
-add_executable(clice "${CMAKE_SOURCE_DIR}/src/Driver/clice.cc")
-target_link_libraries(clice PRIVATE clice-core)
-target_compile_options(clice PUBLIC ${CLICE_CXX_FLAGS})
-target_link_options(clice PUBLIC ${CLICE_LINKER_FLAGS})
-
-# clice tests
 if(CLICE_ENABLE_TEST)
-    file(GLOB_RECURSE CLICE_TEST_SOURCES "${CMAKE_SOURCE_DIR}/tests/unit/*/*.cpp")
-    add_executable(unit_tests "${CLICE_TEST_SOURCES}" "${CMAKE_SOURCE_DIR}/src/Driver/unit_tests.cc")
-    target_include_directories(unit_tests PUBLIC "${CMAKE_SOURCE_DIR}")
-
-    target_link_libraries(unit_tests PRIVATE clice-core)
-    target_compile_options(unit_tests PUBLIC ${CLICE_CXX_FLAGS})
-    target_link_options(unit_tests PUBLIC ${CLICE_LINKER_FLAGS})
-
-    add_executable(helper "${CMAKE_SOURCE_DIR}/src/Driver/helper.cc")
-    target_link_libraries(helper PRIVATE clice-core)
+    target_compile_definitions(clice_options INTERFACE CLICE_ENABLE_TEST=1)
+endif()
+
+if(CLICE_CI_ENVIRONMENT)
+    target_compile_definitions(clice_options INTERFACE CLICE_CI_ENVIRONMENT=1)
+endif()
+
+set(FBS_SCHEMA_FILE "${PROJECT_SOURCE_DIR}/src/index/schema.fbs")
+set(GENERATED_HEADER "${PROJECT_BINARY_DIR}/generated/schema_generated.h")
+
+if(CMAKE_CROSSCOMPILING)
+    find_program(FLATC_EXECUTABLE flatc REQUIRED)
+    set(FLATC_CMD "${FLATC_EXECUTABLE}")
+else()
+    set(FLATC_CMD "$<TARGET_FILE:flatc>")
+endif()
+
+add_custom_command(
+    OUTPUT "${GENERATED_HEADER}"
+    COMMAND ${FLATC_CMD} --cpp -o "${PROJECT_BINARY_DIR}/generated" "${FBS_SCHEMA_FILE}"
+    DEPENDS "${FBS_SCHEMA_FILE}"
+    COMMENT "Generating C++ header from ${FBS_SCHEMA_FILE}"
+)
+
+add_custom_target(generate_flatbuffers_schema DEPENDS "${GENERATED_HEADER}")
+
+file(GLOB_RECURSE CLICE_CORE_SOURCES CONFIGURE_DEPENDS "${PROJECT_SOURCE_DIR}/src/*.cpp")
+add_library(clice-core STATIC ${CLICE_CORE_SOURCES})
+add_library(clice::core ALIAS clice-core)
+add_dependencies(clice-core generate_flatbuffers_schema)
+
+target_include_directories(clice-core PUBLIC
+    "${PROJECT_SOURCE_DIR}/src"
+    "${PROJECT_BINARY_DIR}/generated"
+)
+target_link_libraries(clice-core PUBLIC
+    clice_options
+    llvm-libs
+    spdlog::spdlog
+    roaring::roaring
+    flatbuffers
+    kota::ipc::lsp
+    kota::codec::toml
+    simdjson::simdjson
+)
+
+add_executable(clice "${PROJECT_SOURCE_DIR}/src/clice.cc")
+target_link_libraries(clice PRIVATE clice::core kota::deco)
+install(TARGETS clice RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+add_custom_target(copy_clang_resource ALL
+    COMMAND ${CMAKE_COMMAND} -E copy_directory
+        "${LLVM_INSTALL_PATH}/lib/clang"
+        "${PROJECT_BINARY_DIR}/lib/clang"
+    COMMENT "Copying clang resource directory"
+)
+install(
+    DIRECTORY "${LLVM_INSTALL_PATH}/lib/clang"
+    DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+)
+
+if(CLICE_ENABLE_TEST)
+    file(GLOB_RECURSE CLICE_TEST_SOURCES CONFIGURE_DEPENDS
+        "${PROJECT_SOURCE_DIR}/tests/unit/*/*_tests.cpp"
+    )
+    set(CLICE_TEST_SUPPORT_SOURCES
+        "${PROJECT_SOURCE_DIR}/tests/unit/test/annotation.cpp"
+        "${PROJECT_SOURCE_DIR}/tests/unit/test/tester.cpp"
+    )
+
+    add_executable(unit_tests
+        "${PROJECT_SOURCE_DIR}/tests/unit/unit_tests.cc"
+        ${CLICE_TEST_SOURCES}
+        ${CLICE_TEST_SUPPORT_SOURCES}
+    )
+    target_include_directories(unit_tests PRIVATE
+        "${PROJECT_SOURCE_DIR}/src"
+        "${PROJECT_SOURCE_DIR}/tests/unit"
+    )
+    target_link_libraries(unit_tests PRIVATE clice::core kota::zest kota::deco)
+endif()
+
+if(CLICE_ENABLE_BENCHMARK)
+    add_executable(scan_benchmark
+        "${PROJECT_SOURCE_DIR}/benchmarks/scan_benchmark.cpp"
+    )
+    target_include_directories(scan_benchmark PRIVATE
+        "${PROJECT_SOURCE_DIR}/src"
+    )
+    target_link_libraries(scan_benchmark PRIVATE clice::core kota::deco)
+endif()
+
+if(CLICE_RELEASE)
+    include("${PROJECT_SOURCE_DIR}/cmake/release.cmake")
 endif()
--- a/214
+++ b/214
@@ -1,21 +1,201 @@
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--- a/README.md
+++ b/README.md
@@ -1,25 +1,38 @@
-# clice: a powerful and efficient language server for c/c++
+<!-- Begin section: Overview -->

-clice is a new language server for c/c++. It is still in the early stages of development, so just wait for a few months.
+# clice

-Current progress is recorded in issues, feel free to share your ideas and suggestions!
+![C++ Standard](https://img.shields.io/badge/C++-23-blue.svg)
+[![GitHub license](https://img.shields.io/github/license/clice-io/clice)](https://github.com/clice-io/clice/blob/main/LICENSE)
+[![Actions status](https://github.com/clice-io/clice/workflows/CI/badge.svg)](https://github.com/clice-io/clice/actions)
+[![Documentation](https://img.shields.io/badge/view-documentation-blue)](https://docs.clice.io/clice/)
+[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/clice-io/clice)
+[![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?logo=discord&logoColor=white)](https://discord.gg/PA3UxW2VA3)

-# Why write a new language server?
+clice is a next-generation language server designed for modern C++. Through excellent asynchronous task scheduling and intelligent caching, it achieves a lower memory footprint and faster response times.

-In VSCode, there are mainly three C++ plugins: cpp-tools, ccls, and clangd. Based on my experience, **clangd > ccls > cpptools**. However, this doesn't mean it has no shortcomings. In fact, compared to CLion's clangd (CLion uses its own private clangd branch), clangd has a significant gap.
+Beyond performance, clice provides instantiation-aware template processing, supports switching header contexts between different source files (including non-self-contained headers), and offers comprehensive support for C++20 modules, from code completion to go-to-definition. Our goal is to provide C++ developers with a truly fast, precise, and intelligent development companion.

-Given this, why not contribute to clangd instead of writing a new one? The main reasons are:
+> [!IMPORTANT]
+> Support for header contexts and C++20 modules are core features currently under active development. They will be progressively refined in upcoming releases. Stay tuned!

-Clangd was initially maintained by several Google employees: [Sam McCall](https://github.com/sam-mccall), [kadircet](https://github.com/kadircet), and [hokein](https://github.com/hokein). They mainly addressed Google's internal needs, and more complex requests from other users often had very low priority. Moreover, starting from 2023, these employees seem to have been reassigned to other projects. Clangd now has only one passionate, voluntary maintainer: [Nathan Ridge](https://github.com/HighCommander4). But he also has his own work to attend to, and his time is very limited—possibly only enough to answer some user queries in issues.
+## Getting started

-Some complex requirements often require large-scale modifications to clangd, and currently, there's no one available to review the related code. Such PRs might be shelved for a very long time. As far as I know, issues like adding support for C++20 modules to clangd—such as [Introduce initial support for C++20 Modules](https://github.com/llvm/llvm-project/pull/66462) — have been delayed for nearly a year. This pace is unacceptable to me. So the current situation is that making significant changes to clangd and merging them into the mainline is very difficult.
+Download the latest `clice` binary from the [releases page](https://github.com/clice-io/clice/releases) and install the [vscode extension](https://marketplace.visualstudio.com/items?itemName=ykiko.clice-vscode). Then, add the following configuration to your `.vscode/settings.json` file:

-# Why should you choose clice?
+```jsonc
+{
+  // Optional: Set this to an empty string to turn off the clangd.
+  "clangd.path": "",

- Support non self contained files
- Support more code actions
- Support full C++20 named module
- Support more semantic tokens
- Better response inside template
- Better performance and less memory usage
- Better index format
+  // Point this to the clice binary you downloaded.
+  "clice.executable": "/path/to/your/clice/executable",
+}
+```
+
+> [!NOTE]
+> As an early version, please do not use it in a production environment. Crashes are expected, and we welcome you to submit issues.
+
+## Documentation
+
+To learn more about building, installing, and configuring clice, or to dive deep into its features and architecture, please visit our official documentation at [**clice.io**](https://docs.clice.io/clice/).
--- a/benchmarks/scan_benchmark.cpp
+++ b/benchmarks/scan_benchmark.cpp
@@ -0,0 +1,411 @@
+/// Benchmark for scan_dependency_graph on a real compilation database.
+///
+/// Usage:
+///   scan_benchmark [OPTIONS] <compile_commands.json>
+///
+/// Example:
+///   ./build/RelWithDebInfo/bin/scan_benchmark \
+///       /home/ykiko/C++/clice/.llvm/build-debug/compile_commands.json
+///
+///   ./build/RelWithDebInfo/bin/scan_benchmark --log-level info --export graph.json \
+///       /home/ykiko/C++/clice/.llvm/build-debug/compile_commands.json
+
+#include <algorithm>
+#include <chrono>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <numeric>
+#include <print>
+#include <set>
+#include <thread>
+
+#include "command/command.h"
+#include "support/filesystem.h"
+#include "support/logging.h"
+#include "support/path_pool.h"
+#include "syntax/dependency_graph.h"
+
+#include "kota/codec/json/serializer.h"
+#include "kota/deco/deco.h"
+#include "llvm/Support/FileSystem.h"
+
+using namespace clice;
+
+struct BenchmarkOptions {
+    DecoKV(names = {"--log-level"}; help = "Log level: trace, debug, info, warn, error, off";
+           required = false;)
+    <std::string> log_level = "off";
+
+    DecoKV(names = {"--export"}; help = "Export dependency graph as JSON to this path";
+           required = false;)
+    <std::string> export_path;
+
+    DecoKV(names = {"--runs"}; help = "Number of cold start iterations"; required = false;)
+    <int> runs = 20;
+
+    DecoFlag(names = {"-h", "--help"}; help = "Show help message"; required = false;)
+    help;
+
+    DecoInput(meta_var = "CDB"; help = "Path to compile_commands.json"; required = false;)
+    <std::string> cdb_path;
+};
+
+struct FileNode {
+    std::string path;
+    std::string module_name;
+    std::vector<std::string> includes;
+};
+
+struct GraphExport {
+    std::vector<FileNode> files;
+};
+
+void export_graph_json(const PathPool& path_pool,
+                       const DependencyGraph& graph,
+                       llvm::StringRef output_path) {
+    // Build reverse module map: path_id -> module_name.
+    llvm::DenseMap<std::uint32_t, llvm::StringRef> path_to_module;
+    for(auto& [name, path_ids]: graph.modules()) {
+        for(auto path_id: path_ids) {
+            path_to_module[path_id] = name;
+        }
+    }
+
+    GraphExport export_data;
+    for(std::uint32_t id = 0; id < path_pool.paths.size(); id++) {
+        auto inc_ids = graph.get_all_includes(id);
+        if(inc_ids.empty()) {
+            continue;
+        }
+
+        FileNode node;
+        node.path = path_pool.paths[id].str();
+
+        auto mod_it = path_to_module.find(id);
+        if(mod_it != path_to_module.end()) {
+            node.module_name = mod_it->second.str();
+        }
+
+        for(auto flagged_id: inc_ids) {
+            auto raw_id = flagged_id & DependencyGraph::PATH_ID_MASK;
+            node.includes.push_back(path_pool.paths[raw_id].str());
+        }
+
+        export_data.files.push_back(std::move(node));
+    }
+
+    auto json = kota::codec::json::to_json(export_data);
+    if(!json) {
+        std::println(stderr, "Failed to serialize dependency graph");
+        return;
+    }
+
+    std::ofstream out(output_path.str());
+    if(!out) {
+        std::println(stderr, "Failed to open output file: {}", output_path);
+        return;
+    }
+    out << *json;
+    std::println("Graph exported to {} ({} files)", output_path, export_data.files.size());
+}
+
+void print_report(const ScanReport& report) {
+    std::println("===============================================================");
+    std::println("                    Dependency Scan Report");
+    std::println("===============================================================");
+
+    // Timing.
+    std::println("");
+    std::println("  Time: {}ms", report.elapsed_ms);
+    std::println("  Waves: {}", report.waves);
+
+    // File counts.
+    std::println("");
+    std::println("  Files");
+    std::println("    Source files (from CDB):  {}", report.source_files);
+    std::println("    Header files (discovered): {}", report.header_files);
+    std::println("    Total:                     {}", report.total_files);
+    std::println("    Modules:                   {}", report.modules);
+
+    // Include edges.
+    std::println("");
+    std::println("  Include Edges");
+    std::println("    Total:         {}", report.total_edges);
+    std::println("    Unconditional: {}", report.unconditional_edges);
+    std::println("    Conditional:   {} (inside #if/#ifdef)", report.conditional_edges);
+
+    // Resolution accuracy.
+    std::println("");
+    std::println("  Resolution");
+    std::println("    #include directives: {}", report.includes_found);
+    std::println("    Resolved:            {}", report.includes_resolved);
+    auto unresolved_count = report.includes_found - report.includes_resolved;
+    std::println("    Unresolved:          {}", unresolved_count);
+    if(report.includes_found > 0) {
+        double rate = 100.0 * static_cast<double>(report.includes_resolved) /
+                      static_cast<double>(report.includes_found);
+        std::println("    Accuracy:            {:.1f}%", rate);
+    }
+
+    // Wall-clock phase breakdown.
+    std::println("");
+    std::println("  Phase Breakdown (wall-clock)");
+    std::println("    Config extraction: {}ms (prewarm={}ms, loop={}ms)",
+                 report.config_ms,
+                 report.prewarm_ms,
+                 report.config_loop_ms);
+    std::println("    Dir cache pre-pop: {}ms (overlapped with Phase 1)", report.dir_cache_ms);
+    std::println("    Phase 1 (read+scan, parallel): {}ms", report.phase1_ms);
+    std::println("    Phase 2 (include resolve):     {}ms", report.phase2_ms);
+    std::println("    Phase 3 (graph build):         {}ms", report.phase3_ms);
+
+    // Per-wave breakdown.
+    if(!report.wave_stats.empty()) {
+        std::println("");
+        std::println("  Per-Wave Breakdown");
+        std::println("    {:>5s} {:>8s} {:>8s} {:>8s} {:>8s} {:>8s} {:>10s} {:>10s}",
+                     "Wave",
+                     "Files",
+                     "P1(ms)",
+                     "P2(ms)",
+                     "Next",
+                     "Prefetch",
+                     "DirList",
+                     "DirHits");
+        for(std::size_t i = 0; i < report.wave_stats.size(); i++) {
+            auto& ws = report.wave_stats[i];
+            std::println("    {:>5} {:>8} {:>8} {:>8} {:>8} {:>8} {:>10} {:>10}",
+                         i,
+                         ws.files,
+                         ws.phase1_ms,
+                         ws.phase2_ms,
+                         ws.next_files,
+                         ws.prefetch_count,
+                         ws.dir_listings,
+                         ws.dir_hits);
+        }
+    }
+
+    // Phase 2 breakdown.
+    if(report.p2_resolve_us > 0) {
+        auto other_us = report.phase2_ms * 1000 - report.p2_resolve_us;
+        std::println("");
+        std::println("  Phase 2 Breakdown (single-threaded)");
+        std::println("    resolve_include: {:.1f}ms", report.p2_resolve_us / 1000.0);
+        std::println("    Other (cache lookup, intern, graph): {:.1f}ms", other_us / 1000.0);
+    }
+
+    // Cumulative I/O statistics.
+    std::println("");
+    std::println("  I/O Statistics (cumulative across threads)");
+    std::println("    File read:  {:.1f}ms (sum of all threads)", report.read_us / 1000.0);
+    std::println("    Lexer scan: {:.1f}ms (sum of all threads)", report.scan_us / 1000.0);
+    std::println("    Filesystem: {:.1f}ms ({} readdir calls, {} dir cache hits)",
+                 report.fs_us / 1000.0,
+                 report.dir_listings,
+                 report.dir_hits);
+    std::println("    File lookups: {}", report.fs_lookups);
+    std::println("    Include cache hits: {}", report.include_cache_hits);
+    std::println("    Scan result cache hits: {}", report.scan_cache_hits);
+    if(report.dir_listings + report.dir_hits > 0) {
+        double hit_rate = 100.0 * static_cast<double>(report.dir_hits) /
+                          static_cast<double>(report.dir_listings + report.dir_hits);
+        std::println("    Dir cache hit rate: {:.1f}%", hit_rate);
+    }
+
+    std::println("");
+    std::println("===============================================================");
+}
+
+int main(int argc, const char** argv) {
+    auto args = kota::deco::util::argvify(argc, argv);
+    auto result = kota::deco::cli::parse<BenchmarkOptions>(args);
+
+    if(!result.has_value()) {
+        std::println(stderr, "Error: {}", result.error().message);
+        return 1;
+    }
+
+    auto& opts = result->options;
+
+    if(opts.help.value_or(false) || !opts.cdb_path.has_value()) {
+        std::ostringstream oss;
+        kota::deco::cli::write_usage_for<BenchmarkOptions>(oss, "scan_benchmark [OPTIONS] <cdb>");
+        std::print("{}", oss.str());
+        return opts.help.value_or(false) ? 0 : 1;
+    }
+
+    // Configure logging.
+    auto level = spdlog::level::from_str(*opts.log_level);
+    clice::logging::options.level = level;
+    clice::logging::stderr_logger("scan_benchmark", clice::logging::options);
+
+    // resource_dir() is self-initializing (lazy static) — no setup needed.
+
+    auto& cdb_path = *opts.cdb_path;
+    auto hw_threads = std::thread::hardware_concurrency();
+    auto runs = *opts.runs;
+    if(runs <= 0) {
+        std::println(stderr, "Error: --runs must be positive (got {})", runs);
+        return 1;
+    }
+
+    // Set UV_THREADPOOL_SIZE if not already set.
+    // Use at least libuv's default (4) so low-core CI runners don't regress.
+    if(!std::getenv("UV_THREADPOOL_SIZE")) {
+        auto pool_size = std::max(hw_threads, 4u);
+        static std::string env = "UV_THREADPOOL_SIZE=" + std::to_string(pool_size);
+        putenv(env.data());
+    }
+
+    std::println("Hardware threads: {}", hw_threads);
+    std::println("UV_THREADPOOL_SIZE: {}", std::getenv("UV_THREADPOOL_SIZE"));
+    std::println("Log level: {}", *opts.log_level);
+    std::println("CDB: {}", cdb_path);
+    std::println("");
+
+    // Load compilation database.
+    auto t0 = std::chrono::steady_clock::now();
+
+    CompilationDatabase cdb;
+    auto count = cdb.load(cdb_path);
+
+    auto t1 = std::chrono::steady_clock::now();
+    auto load_ms = std::chrono::duration_cast<std::chrono::milliseconds>(t1 - t0).count();
+
+    std::println("CDB loaded: {} entries in {}ms", count, load_ms);
+
+    {
+        std::set<const CompilationInfo*> unique_contexts;
+        std::set<const CanonicalCommand*> unique_canonicals;
+        std::map<const CanonicalCommand*, int> canonical_hist;
+        for(auto& entry: cdb.get_entries()) {
+            unique_contexts.insert(entry.info.ptr);
+            unique_canonicals.insert(entry.info->canonical.ptr);
+            canonical_hist[entry.info->canonical.ptr]++;
+        }
+        double dedup_ratio =
+            unique_contexts.empty() ? 0.0 : static_cast<double>(count) / unique_contexts.size();
+        std::println(
+            "Context dedup: {} files -> {} unique contexts ({:.1f}x), {} unique canonicals",
+            count,
+            unique_contexts.size(),
+            dedup_ratio,
+            unique_canonicals.size());
+
+        // If canonical dedup is poor, dump diagnostics.
+        if(unique_canonicals.size() > 200) {
+            // Sort canonicals by frequency (descending).
+            std::vector<std::pair<int, const CanonicalCommand*>> sorted;
+            for(auto& [ptr, cnt]: canonical_hist)
+                sorted.push_back({cnt, ptr});
+            std::ranges::sort(sorted,
+                              std::greater{},
+                              &std::pair<int, const CanonicalCommand*>::first);
+
+            // Show top-5 canonical commands.
+            for(int i = 0; i < std::min(5, (int)sorted.size()); i++) {
+                auto [cnt, cmd] = sorted[i];
+                std::println("  canonical[{}] ({} files, {} args):", i, cnt, cmd->arguments.size());
+                for(auto arg: cmd->arguments)
+                    std::println("    {}", arg);
+            }
+
+            // Show a singleton canonical (count==1) to see what per-file arg leaks in.
+            for(auto& [cnt, cmd]: sorted) {
+                if(cnt == 1) {
+                    std::println("  singleton canonical ({} args):", cmd->arguments.size());
+                    for(auto arg: cmd->arguments)
+                        std::println("    {}", arg);
+                    break;
+                }
+            }
+
+            // Find two canonicals that differ by only a few args.
+            if(sorted.size() >= 2) {
+                auto* a = sorted[0].second;
+                auto* b = sorted[1].second;
+                std::println("  --- Canonical diff (top-1 vs top-2) ---");
+                auto max_len = std::max(a->arguments.size(), b->arguments.size());
+                for(std::size_t i = 0; i < max_len; i++) {
+                    llvm::StringRef av = i < a->arguments.size() ? a->arguments[i] : "<missing>";
+                    llvm::StringRef bv = i < b->arguments.size() ? b->arguments[i] : "<missing>";
+                    if(av != bv)
+                        std::println("    DIFF[{}]: '{}' vs '{}'", i, av, bv);
+                    else
+                        std::println("    SAME[{}]: '{}'", i, av);
+                }
+            }
+        }
+    }
+
+    std::println("\nRunning {} cold start scan(s)...\n", runs);
+
+    PathPool path_pool;
+    DependencyGraph graph;
+    std::vector<std::int64_t> elapsed_times;
+    std::vector<std::int64_t> config_times;
+    std::vector<std::int64_t> phase1_times;
+    std::vector<std::int64_t> phase2_times;
+    elapsed_times.reserve(runs);
+    config_times.reserve(runs);
+    phase1_times.reserve(runs);
+    phase2_times.reserve(runs);
+
+    for(int i = 0; i < runs; i++) {
+        // True cold start: rebuild CDB (clears toolchain & config caches),
+        // reset PathPool and DependencyGraph.
+        cdb = CompilationDatabase{};
+        cdb.load(cdb_path);
+        path_pool = PathPool{};
+        graph = DependencyGraph{};
+
+        auto report = scan_dependency_graph(cdb, path_pool, graph);
+
+        elapsed_times.push_back(report.elapsed_ms);
+        config_times.push_back(report.config_ms);
+        phase1_times.push_back(report.phase1_ms);
+        phase2_times.push_back(report.phase2_ms);
+
+        std::println("[run {:2}] {}ms | config={}ms phase1={}ms phase2={}ms | files={}",
+                     i + 1,
+                     report.elapsed_ms,
+                     report.config_ms,
+                     report.phase1_ms,
+                     report.phase2_ms,
+                     report.total_files);
+
+        // Print detailed report for the first run only.
+        if(i == 0) {
+            std::println("");
+            print_report(report);
+        }
+    }
+
+    // Summary statistics.
+    if(runs > 1) {
+        auto stats = [](std::vector<std::int64_t>& v) {
+            std::ranges::sort(v);
+            auto sum = std::accumulate(v.begin(), v.end(), std::int64_t{0});
+            return std::tuple{v.front(), sum / static_cast<std::int64_t>(v.size()), v.back()};
+        };
+        auto [e_min, e_avg, e_max] = stats(elapsed_times);
+        auto [c_min, c_avg, c_max] = stats(config_times);
+        auto [p1_min, p1_avg, p1_max] = stats(phase1_times);
+        auto [p2_min, p2_avg, p2_max] = stats(phase2_times);
+
+        std::println("\n  Summary ({} runs)             min    avg    max", runs);
+        std::println("    Total:              {:>7} {:>6} {:>6}", e_min, e_avg, e_max);
+        std::println("    Config extraction:  {:>7} {:>6} {:>6}", c_min, c_avg, c_max);
+        std::println("    Phase 1 (read+scan):{:>7} {:>6} {:>6}", p1_min, p1_avg, p1_max);
+        std::println("    Phase 2 (resolve):  {:>7} {:>6} {:>6}", p2_min, p2_avg, p2_max);
+    }
+
+    // Export dependency graph as JSON if requested.
+    if(opts.export_path.has_value()) {
+        export_graph_json(path_pool, graph, *opts.export_path);
+    }
+
+    return 0;
+}
--- a/cmake/archive.cmake
+++ b/cmake/archive.cmake
@@ -0,0 +1,17 @@
+if(OUTPUT MATCHES "\\.tar\\.gz$")
+    execute_process(
+        COMMAND ${CMAKE_COMMAND} -E tar czf "${OUTPUT}" .
+        WORKING_DIRECTORY "${WORK_DIR}"
+        COMMAND_ERROR_IS_FATAL ANY
+    )
+elseif(OUTPUT MATCHES "\\.zip$")
+    execute_process(
+        COMMAND ${CMAKE_COMMAND} -E tar cf "${OUTPUT}" --format=zip .
+        WORKING_DIRECTORY "${WORK_DIR}"
+        COMMAND_ERROR_IS_FATAL ANY
+    )
+else()
+    message(FATAL_ERROR "Unsupported archive format: ${OUTPUT}")
+endif()
+
+message(STATUS "Created: ${OUTPUT}")
--- a/cmake/llvm.cmake
+++ b/cmake/llvm.cmake
@@ -0,0 +1,131 @@
+include_guard()
+
+function(setup_llvm LLVM_VERSION)
+    find_package(Python3 COMPONENTS Interpreter REQUIRED)
+
+    set(LLVM_SETUP_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/.llvm/setup-llvm.json")
+    set(LLVM_SETUP_SCRIPT "${PROJECT_SOURCE_DIR}/scripts/setup-llvm.py")
+    set(LLVM_SETUP_ARGS
+        "--version" "${LLVM_VERSION}"
+        "--build-type" "${CMAKE_BUILD_TYPE}"
+        "--binary-dir" "${CMAKE_CURRENT_BINARY_DIR}"
+        "--manifest" "${PROJECT_SOURCE_DIR}/config/llvm-manifest.json"
+        "--output" "${LLVM_SETUP_OUTPUT}"
+    )
+
+    if(CLICE_ENABLE_LTO)
+        list(APPEND LLVM_SETUP_ARGS "--enable-lto")
+    endif()
+
+    if(DEFINED LLVM_INSTALL_PATH AND NOT LLVM_INSTALL_PATH STREQUAL "")
+        list(APPEND LLVM_SETUP_ARGS "--install-path" "${LLVM_INSTALL_PATH}")
+    endif()
+
+    if(DEFINED CLICE_OFFLINE_BUILD AND CLICE_OFFLINE_BUILD)
+        list(APPEND LLVM_SETUP_ARGS "--offline")
+    endif()
+
+    if(DEFINED CLICE_TARGET_TRIPLE)
+        if(CLICE_TARGET_TRIPLE MATCHES "linux")
+            list(APPEND LLVM_SETUP_ARGS "--target-platform" "Linux")
+        elseif(CLICE_TARGET_TRIPLE MATCHES "darwin")
+            list(APPEND LLVM_SETUP_ARGS "--target-platform" "macosx")
+        elseif(CLICE_TARGET_TRIPLE MATCHES "windows")
+            list(APPEND LLVM_SETUP_ARGS "--target-platform" "Windows")
+        endif()
+
+        if(CLICE_TARGET_TRIPLE MATCHES "^aarch64")
+            list(APPEND LLVM_SETUP_ARGS "--target-arch" "arm64")
+        elseif(CLICE_TARGET_TRIPLE MATCHES "^x86_64")
+            list(APPEND LLVM_SETUP_ARGS "--target-arch" "x64")
+        endif()
+    endif()
+
+    execute_process(
+        COMMAND "${Python3_EXECUTABLE}" "${LLVM_SETUP_SCRIPT}" ${LLVM_SETUP_ARGS}
+        RESULT_VARIABLE LLVM_SETUP_RESULT
+        OUTPUT_VARIABLE LLVM_SETUP_STDOUT
+        ERROR_VARIABLE LLVM_SETUP_STDERR
+        ECHO_OUTPUT_VARIABLE
+        ECHO_ERROR_VARIABLE
+        COMMAND_ERROR_IS_FATAL ANY
+    )
+
+    file(READ "${LLVM_SETUP_OUTPUT}" LLVM_SETUP_JSON)
+    string(JSON LLVM_INSTALL_PATH GET "${LLVM_SETUP_JSON}" install_path)
+    string(JSON LLVM_CMAKE_DIR GET "${LLVM_SETUP_JSON}" cmake_dir)
+    set(LLVM_INSTALL_PATH "${LLVM_INSTALL_PATH}" CACHE PATH "Path to LLVM installation" FORCE)
+    set(LLVM_CMAKE_DIR "${LLVM_CMAKE_DIR}" CACHE PATH "Path to LLVM CMake files" FORCE)
+
+    get_filename_component(LLVM_INSTALL_PATH "${LLVM_INSTALL_PATH}" ABSOLUTE)
+
+    if(NOT EXISTS "${LLVM_INSTALL_PATH}")
+        message(FATAL_ERROR "Error: The specified LLVM_INSTALL_PATH does not exist: ${LLVM_INSTALL_PATH}")
+    endif()
+
+    # set llvm include and lib path
+    add_library(llvm-libs INTERFACE IMPORTED)
+
+    # add to include directories
+    target_include_directories(llvm-libs INTERFACE "${LLVM_INSTALL_PATH}/include")
+
+    if(CMAKE_BUILD_TYPE STREQUAL "Debug" AND NOT WIN32)
+        target_link_directories(llvm-libs INTERFACE "${LLVM_INSTALL_PATH}/lib")
+        target_link_libraries(llvm-libs INTERFACE
+            LLVMSupport
+            LLVMFrontendOpenMP
+            LLVMOption
+            LLVMTargetParser
+            clangAST
+            clangASTMatchers
+            clangBasic
+            clangDriver
+            clangFormat
+            clangFrontend
+            clangLex
+            clangSema
+            clangSerialization
+            clangTidy
+            clangTidyUtils
+            clangTidyAndroidModule
+            clangTidyAbseilModule
+            clangTidyAlteraModule
+            clangTidyBoostModule
+            clangTidyBugproneModule
+            clangTidyCERTModule
+            clangTidyConcurrencyModule
+            clangTidyCppCoreGuidelinesModule
+            clangTidyDarwinModule
+            clangTidyFuchsiaModule
+            clangTidyGoogleModule
+            clangTidyHICPPModule
+            clangTidyLinuxKernelModule
+            clangTidyLLVMModule
+            clangTidyLLVMLibcModule
+            clangTidyMiscModule
+            clangTidyModernizeModule
+            clangTidyObjCModule
+            clangTidyOpenMPModule
+            clangTidyPerformanceModule
+            clangTidyPortabilityModule
+            clangTidyReadabilityModule
+            clangTidyZirconModule
+            clangTooling
+            clangToolingCore
+            clangToolingInclusions
+            clangToolingInclusionsStdlib
+            clangToolingSyntax
+        )
+    else()
+        file(GLOB LLVM_LIBRARIES CONFIGURE_DEPENDS "${LLVM_INSTALL_PATH}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}LLVM[a-zA-Z]*${CMAKE_STATIC_LIBRARY_SUFFIX}")
+        file(GLOB CLANG_LIBRARIES CONFIGURE_DEPENDS "${LLVM_INSTALL_PATH}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}clang[a-zA-Z]*${CMAKE_STATIC_LIBRARY_SUFFIX}")
+        # TODO: find a better way to find out whether zlib and zstd are needed
+        # Currently link if present in the LLVM lib directory
+        file(GLOB OTHER_REQUIRED_LIBS CONFIGURE_DEPENDS
+            "${LLVM_INSTALL_PATH}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}z${CMAKE_STATIC_LIBRARY_SUFFIX}"
+            "${LLVM_INSTALL_PATH}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}zstd${CMAKE_STATIC_LIBRARY_SUFFIX}"
+        )
+        target_link_libraries(llvm-libs INTERFACE ${LLVM_LIBRARIES} ${CLANG_LIBRARIES} ${OTHER_REQUIRED_LIBS})
+        target_compile_definitions(llvm-libs INTERFACE CLANG_BUILD_STATIC=1)
+    endif()
+endfunction()
--- a/cmake/package.cmake
+++ b/cmake/package.cmake
@@ -0,0 +1,56 @@
+include_guard()
+
+include(${CMAKE_CURRENT_LIST_DIR}/llvm.cmake)
+setup_llvm("21.1.8")
+
+# install dependencies
+include(FetchContent)
+set(FETCHCONTENT_UPDATES_DISCONNECTED ON)
+
+# spdlog
+FetchContent_Declare(
+    spdlog
+    GIT_REPOSITORY https://github.com/gabime/spdlog.git
+    GIT_TAG v1.15.3
+    GIT_SHALLOW TRUE
+)
+set(SPDLOG_USE_STD_FORMAT ON CACHE BOOL "" FORCE)
+set(SPDLOG_NO_EXCEPTIONS ON CACHE BOOL "" FORCE)
+
+# croaring
+FetchContent_Declare(
+    croaring
+    GIT_REPOSITORY https://github.com/RoaringBitmap/CRoaring.git
+    GIT_TAG v4.4.2
+    GIT_SHALLOW TRUE
+)
+set(ENABLE_ROARING_TESTS OFF CACHE INTERNAL "" FORCE)
+set(ENABLE_ROARING_MICROBENCHMARKS OFF CACHE INTERNAL "" FORCE)
+
+# flatbuffers
+FetchContent_Declare(
+    flatbuffers
+    GIT_REPOSITORY https://github.com/google/flatbuffers.git
+    GIT_TAG v25.9.23
+    GIT_SHALLOW TRUE
+)
+set(FLATBUFFERS_BUILD_GRPC OFF CACHE BOOL "" FORCE)
+set(FLATBUFFERS_BUILD_TESTS OFF CACHE BOOL "" FORCE)
+set(FLATBUFFERS_BUILD_FLATHASH OFF CACHE BOOL "" FORCE)
+
+FetchContent_Declare(
+    kotatsu
+    GIT_REPOSITORY https://github.com/clice-io/kotatsu
+    GIT_TAG main
+    GIT_SHALLOW TRUE
+)
+
+set(KOTA_ENABLE_ZEST ON)
+set(KOTA_ENABLE_TEST OFF)
+set(KOTA_CODEC_ENABLE_SIMDJSON ON)
+set(KOTA_CODEC_ENABLE_YYJSON ON)
+set(KOTA_CODEC_ENABLE_TOML ON)
+set(KOTA_ENABLE_EXCEPTIONS OFF)
+set(KOTA_ENABLE_RTTI OFF)
+
+FetchContent_MakeAvailable(kotatsu spdlog croaring flatbuffers)
--- a/cmake/release.cmake
+++ b/cmake/release.cmake
@@ -0,0 +1,78 @@
+include_guard()
+
+set(CLICE_PACK_DIR "${PROJECT_BINARY_DIR}/pack")
+set(CLICE_SYMBOL_DIR "${PROJECT_BINARY_DIR}/pack-symbol")
+
+if(WIN32)
+    set(CLICE_ARCHIVE_EXT ".zip")
+    set(CLICE_SYMBOL_NAME "clice.pdb")
+else()
+    set(CLICE_ARCHIVE_EXT ".tar.gz")
+    if(APPLE)
+        set(CLICE_SYMBOL_NAME "clice.dSYM")
+    else()
+        set(CLICE_SYMBOL_NAME "clice.debug")
+    endif()
+endif()
+
+if(WIN32)
+    add_custom_target(clice-strip ALL
+        COMMAND ${CMAKE_COMMAND} -E make_directory "${CLICE_SYMBOL_DIR}"
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different
+            "$<TARGET_PDB_FILE:clice>"
+            "${CLICE_SYMBOL_DIR}/${CLICE_SYMBOL_NAME}"
+        DEPENDS clice
+        COMMENT "Collecting PDB for clice"
+    )
+elseif(APPLE)
+    add_custom_target(clice-strip ALL
+        COMMAND ${CMAKE_COMMAND} -E make_directory "${CLICE_SYMBOL_DIR}"
+        COMMAND dsymutil "$<TARGET_FILE:clice>" -o "${CLICE_SYMBOL_DIR}/${CLICE_SYMBOL_NAME}"
+        COMMAND strip -x "$<TARGET_FILE:clice>"
+        DEPENDS clice
+        COMMENT "Extracting dSYM and stripping clice"
+    )
+else()
+    add_custom_target(clice-strip ALL
+        COMMAND ${CMAKE_COMMAND} -E make_directory "${CLICE_SYMBOL_DIR}"
+        COMMAND ${CMAKE_OBJCOPY} --only-keep-debug "$<TARGET_FILE:clice>" "${CLICE_SYMBOL_DIR}/${CLICE_SYMBOL_NAME}"
+        COMMAND ${CMAKE_STRIP} --strip-debug --strip-unneeded "$<TARGET_FILE:clice>"
+        COMMAND ${CMAKE_OBJCOPY} --add-gnu-debuglink="${CLICE_SYMBOL_DIR}/${CLICE_SYMBOL_NAME}" "$<TARGET_FILE:clice>"
+        DEPENDS clice
+        COMMENT "Extracting debug symbols and stripping clice"
+    )
+endif()
+
+add_custom_target(clice-pack ALL
+    DEPENDS clice-strip copy_clang_resource
+    COMMAND ${CMAKE_COMMAND} -E rm -rf "${CLICE_PACK_DIR}"
+    COMMAND ${CMAKE_COMMAND} -E make_directory "${CLICE_PACK_DIR}/clice/bin"
+    COMMAND ${CMAKE_COMMAND} -E copy "$<TARGET_FILE:clice>" "${CLICE_PACK_DIR}/clice/bin/"
+    COMMAND ${CMAKE_COMMAND} -E copy_directory "${LLVM_INSTALL_PATH}/lib/clang" "${CLICE_PACK_DIR}/clice/lib/clang"
+    COMMAND ${CMAKE_COMMAND} -E copy "${PROJECT_SOURCE_DIR}/docs/clice.toml" "${CLICE_PACK_DIR}/clice/"
+    COMMAND ${CMAKE_COMMAND}
+        -DOUTPUT="${PROJECT_BINARY_DIR}/clice${CLICE_ARCHIVE_EXT}"
+        -DWORK_DIR="${CLICE_PACK_DIR}"
+        -P "${PROJECT_SOURCE_DIR}/cmake/archive.cmake"
+    COMMENT "Packaging clice distribution"
+)
+
+if(APPLE)
+    set(CLICE_COPY_SYMBOL_CMD ${CMAKE_COMMAND} -E copy_directory
+        "${CLICE_SYMBOL_DIR}/${CLICE_SYMBOL_NAME}" "${CLICE_SYMBOL_DIR}/pack/${CLICE_SYMBOL_NAME}")
+else()
+    set(CLICE_COPY_SYMBOL_CMD ${CMAKE_COMMAND} -E copy
+        "${CLICE_SYMBOL_DIR}/${CLICE_SYMBOL_NAME}" "${CLICE_SYMBOL_DIR}/pack/")
+endif()
+
+add_custom_target(clice-pack-symbol ALL
+    DEPENDS clice-strip
+    COMMAND ${CMAKE_COMMAND} -E rm -rf "${CLICE_SYMBOL_DIR}/pack"
+    COMMAND ${CMAKE_COMMAND} -E make_directory "${CLICE_SYMBOL_DIR}/pack"
+    COMMAND ${CLICE_COPY_SYMBOL_CMD}
+    COMMAND ${CMAKE_COMMAND}
+        -DOUTPUT="${PROJECT_BINARY_DIR}/clice-symbol${CLICE_ARCHIVE_EXT}"
+        -DWORK_DIR="${CLICE_SYMBOL_DIR}/pack"
+        -P "${PROJECT_SOURCE_DIR}/cmake/archive.cmake"
+    COMMENT "Packaging clice debug symbols"
+)
--- a/cmake/toolchain.cmake
+++ b/cmake/toolchain.cmake
@@ -0,0 +1,73 @@
+cmake_minimum_required(VERSION 3.30)
+
+# Cross-compilation support via CLICE_TARGET_TRIPLE.
+# Examples:
+#   -DCLICE_TARGET_TRIPLE=x86_64-apple-darwin      (macOS x64 from arm64)
+#   -DCLICE_TARGET_TRIPLE=aarch64-linux-gnu         (Linux arm64 from x64)
+#   -DCLICE_TARGET_TRIPLE=aarch64-pc-windows-msvc   (Windows arm64 from x64)
+if(DEFINED CLICE_TARGET_TRIPLE)
+    if(CLICE_TARGET_TRIPLE MATCHES "^x86_64-apple-darwin")
+        set(CMAKE_OSX_ARCHITECTURES "x86_64" CACHE STRING "")
+    elseif(CLICE_TARGET_TRIPLE MATCHES "^aarch64-.*linux")
+        set(CMAKE_SYSTEM_NAME Linux)
+        set(CMAKE_SYSTEM_PROCESSOR aarch64)
+        set(CMAKE_C_COMPILER_TARGET "aarch64-linux-gnu" CACHE STRING "")
+        set(CMAKE_CXX_COMPILER_TARGET "aarch64-linux-gnu" CACHE STRING "")
+        if(DEFINED ENV{CONDA_PREFIX} AND NOT DEFINED CMAKE_SYSROOT)
+            set(CMAKE_SYSROOT "$ENV{CONDA_PREFIX}/aarch64-conda-linux-gnu/sysroot" CACHE PATH "")
+        endif()
+    elseif(CLICE_TARGET_TRIPLE MATCHES "^aarch64-.*-windows")
+        set(CMAKE_SYSTEM_NAME Windows)
+        set(CMAKE_SYSTEM_PROCESSOR ARM64)
+        set(CMAKE_C_COMPILER_TARGET "aarch64-pc-windows-msvc" CACHE STRING "")
+        set(CMAKE_CXX_COMPILER_TARGET "aarch64-pc-windows-msvc" CACHE STRING "")
+    endif()
+endif()
+
+set(CMAKE_C_COMPILER clang CACHE STRING "")
+set(CMAKE_CXX_COMPILER clang++ CACHE STRING "")
+
+find_program(LLVM_AR_PATH "llvm-ar")
+if(LLVM_AR_PATH)
+    set(CMAKE_AR "${LLVM_AR_PATH}" CACHE FILEPATH "")
+    set(CMAKE_C_COMPILER_AR "${LLVM_AR_PATH}" CACHE FILEPATH "")
+    set(CMAKE_CXX_COMPILER_AR "${LLVM_AR_PATH}" CACHE FILEPATH "")
+endif()
+
+find_program(LLVM_RANLIB_PATH "llvm-ranlib")
+if(LLVM_RANLIB_PATH)
+    set(CMAKE_RANLIB "${LLVM_RANLIB_PATH}" CACHE FILEPATH "")
+    set(CMAKE_C_COMPILER_RANLIB "${LLVM_RANLIB_PATH}" CACHE FILEPATH "")
+    set(CMAKE_CXX_COMPILER_RANLIB "${LLVM_RANLIB_PATH}" CACHE FILEPATH "")
+endif()
+
+find_program(LLVM_NM_PATH "llvm-nm")
+if(LLVM_NM_PATH)
+    set(CMAKE_NM "${LLVM_NM_PATH}" CACHE FILEPATH "")
+endif()
+
+find_program(LLVM_RC_PATH "llvm-rc")
+if(LLVM_RC_PATH)
+    set(CMAKE_RC_COMPILER "${LLVM_RC_PATH}" CACHE FILEPATH "")
+endif()
+
+if(WIN32)
+    find_program(SCCACHE_PATH "sccache")
+    if(SCCACHE_PATH)
+        set(CMAKE_C_COMPILER_LAUNCHER "${SCCACHE_PATH}" CACHE FILEPATH "")
+        set(CMAKE_CXX_COMPILER_LAUNCHER "${SCCACHE_PATH}" CACHE FILEPATH "")
+    endif()
+    set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreadedDLL" CACHE STRING "")
+    set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=lld-link")
+    set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld-link")
+    set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld-link")
+else()
+    find_program(CCACHE_PATH "ccache")
+    if(CCACHE_PATH)
+        set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PATH}" CACHE FILEPATH "")
+        set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PATH}" CACHE FILEPATH "")
+    endif()
+    set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=lld")
+    set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld")
+    set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld")
+endif()
--- a/config/clang-tidy-config.h
+++ b/config/clang-tidy-config.h
@@ -0,0 +1,11 @@
+/* This generated file is for internal use. Do not include it from headers. */
+
+#ifdef CLANG_TIDY_CONFIG_H
+#error clang-tidy-config.h can only be included once
+#else
+#define CLANG_TIDY_CONFIG_H
+
+// Clice currently doesn't support this configuration, and we use the same default value as clangd.
+#define CLANG_TIDY_ENABLE_STATIC_ANALYZER 0
+
+#endif
--- a/config/llvm-manifest.json
+++ b/config/llvm-manifest.json
@@ -0,0 +1,142 @@
+[
+  {
+    "version": "21.1.8",
+    "filename": "aarch64-linux-gnu-releasedbg-lto.tar.xz",
+    "sha256": "f3444ee840b50933c23656cbee7c4d010e752ac55ca66095b97f7c0e997b13b5",
+    "lto": true,
+    "asan": false,
+    "platform": "linux",
+    "arch": "arm64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "aarch64-linux-gnu-releasedbg.tar.xz",
+    "sha256": "b9012bf059e4d8673fb564b5780e5fc78c6a2e47f5cc6a39f444d1879b42dd2a",
+    "lto": false,
+    "asan": false,
+    "platform": "linux",
+    "arch": "arm64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "aarch64-windows-msvc-releasedbg-lto.tar.xz",
+    "sha256": "8870d16141ba7f9ea12f5147b8d91329abbbaa4376cd4576667dd323d896dd08",
+    "lto": true,
+    "asan": false,
+    "platform": "windows",
+    "arch": "arm64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "aarch64-windows-msvc-releasedbg.tar.xz",
+    "sha256": "ad394e79ec85dd40f942671bb0342ffe54a103eb2baabacb773999d57d80134b",
+    "lto": false,
+    "asan": false,
+    "platform": "windows",
+    "arch": "arm64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "arm64-macos-clang-debug-asan.tar.xz",
+    "sha256": "b02d20e4f7294ee33f49a09dfdd765b3b44135e003ef50e3a760aeee39e3f993",
+    "lto": false,
+    "asan": true,
+    "platform": "macosx",
+    "arch": "arm64",
+    "build_type": "Debug"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "arm64-macos-clang-releasedbg-lto.tar.xz",
+    "sha256": "e40c21eb0d0b91d9d4ab31212a5cb01ea46707f5c29839414567857e4147604d",
+    "lto": true,
+    "asan": false,
+    "platform": "macosx",
+    "arch": "arm64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "arm64-macos-clang-releasedbg.tar.xz",
+    "sha256": "e1b01de34f0edfd41c118e4981a93afb35556ae369597e864f4a393db623b926",
+    "lto": false,
+    "asan": false,
+    "platform": "macosx",
+    "arch": "arm64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "x64-linux-gnu-debug-asan.tar.xz",
+    "sha256": "76bb82d822b5377fb5e0fac8abcfba125142e6a0acc02bb36d1fa1532a268646",
+    "lto": false,
+    "asan": true,
+    "platform": "linux",
+    "arch": "x64",
+    "build_type": "Debug"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "x64-linux-gnu-releasedbg-lto.tar.xz",
+    "sha256": "32f5edddec1e689124f045b586fb402ae30febc05203af7391b088bc8494cd53",
+    "lto": true,
+    "asan": false,
+    "platform": "linux",
+    "arch": "x64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "x64-linux-gnu-releasedbg.tar.xz",
+    "sha256": "8ba3c84f23a2a81a86c54780754a61adf99048aa2ac0dc9b9708d0f842d553de",
+    "lto": false,
+    "asan": false,
+    "platform": "linux",
+    "arch": "x64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "x64-macos-clang-releasedbg-lto.tar.xz",
+    "sha256": "97e81d6296896d7237f118f728d05291707b9e4e5791e07ce4be8aee0517505d",
+    "lto": true,
+    "asan": false,
+    "platform": "macosx",
+    "arch": "x64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "x64-macos-clang-releasedbg.tar.xz",
+    "sha256": "53c13f8e1082fa2fe2f9c05303de48cb3133bf5f24271f4b3062f1dec578159c",
+    "lto": false,
+    "asan": false,
+    "platform": "macosx",
+    "arch": "x64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "x64-windows-msvc-releasedbg-lto.tar.xz",
+    "sha256": "16bcf0e4cbc3d2b1204edd619a3837004dacea28eeff0a101c8d0212f936427d",
+    "lto": true,
+    "asan": false,
+    "platform": "windows",
+    "arch": "x64",
+    "build_type": "RelWithDebInfo"
+  },
+  {
+    "version": "21.1.8",
+    "filename": "x64-windows-msvc-releasedbg.tar.xz",
+    "sha256": "81d31fad05e200726c8178314b0b2045c947483dddd8cb974f4c376ae5f441fa",
+    "lto": false,
+    "asan": false,
+    "platform": "windows",
+    "arch": "x64",
+    "build_type": "RelWithDebInfo"
+  }
+]
--- a/docs/.vitepress/config.ts
+++ b/docs/.vitepress/config.ts
@@ -1,40 +1,38 @@
-import { defineConfig } from 'vitepress'
-import { genSidebar } from './theme/sidebar'
+import { defineConfig } from "vitepress";
+import { genSidebar } from "./theme/sidebar";

 // https://vitepress.dev/reference/site-config
 export default defineConfig({
-  title: "clice",
-  description: "a powerful and modern C++ language server",
-  base: '/',
-  rewrites: {
-    'en/:rest*': ':rest*',
-  },
-  locales: {
-    root: { label: 'English' },
-    zh: { label: '简体中文' },
-  },
-  themeConfig: {
-    // https://vitepress.dev/reference/default-theme-config
-    nav: [
-      { text: 'Home', link: '/' },
-    ],
-    sidebar: {
-      "/zh/": [
-        genSidebar('zh', 'design', { title: 'Design' }),
-        genSidebar('zh', 'dev', { title: 'Development' }),
-        genSidebar('zh', 'guide', { title: 'Guide' }),
-      ],
-      "/": [
-        genSidebar('en', 'design', { title: 'Design' }),
-        genSidebar('en', 'dev', { title: 'Development' }),
-        genSidebar('en', 'guide', { title: 'Guide' }),
-      ],
+    title: "clice",
+    description: "a powerful and modern C++ language server",
+    cleanUrls: true,
+    base: "/clice/",
+    rewrites: {
+        "en/:rest*": ":rest*",
    },
-    socialLinks: [
-      { icon: 'discord', link: 'https://discord.gg/PA3UxW2VA3' },
-      { icon: 'github', link: 'https://github.com/clice-project/clice' },
-    ],
-
-    outline: 'deep',
-  }
-})
+    locales: {
+        root: { label: "English" },
+        zh: { label: "简体中文" },
+    },
+    themeConfig: {
+        // https://vitepress.dev/reference/default-theme-config
+        nav: [{ text: "Home", link: "/" }],
+        sidebar: {
+            "/zh/": [
+                genSidebar("zh", "design", { title: "Design" }),
+                genSidebar("zh", "dev", { title: "Development" }),
+                genSidebar("zh", "guide", { title: "Guide" }),
+            ],
+            "/": [
+                genSidebar("en", "design", { title: "Design" }),
+                genSidebar("en", "dev", { title: "Development" }),
+                genSidebar("en", "guide", { title: "Guide" }),
+            ],
+        },
+        socialLinks: [
+            { icon: "discord", link: "https://discord.gg/PA3UxW2VA3" },
+            { icon: "github", link: "https://github.com/clice-io/clice" },
+        ],
+        outline: "deep",
+    },
+});
--- a/docs/.vitepress/theme/index.ts
+++ b/docs/.vitepress/theme/index.ts
@@ -1,17 +1,17 @@
 // https://vitepress.dev/guide/custom-theme
-import { h } from 'vue'
-import type { Theme } from 'vitepress'
-import DefaultTheme from 'vitepress/theme'
-import './style.css'
+import { h } from "vue";
+import type { Theme } from "vitepress";
+import DefaultTheme from "vitepress/theme";
+import "./style.css";

 export default {
-  extends: DefaultTheme,
-  Layout: () => {
-    return h(DefaultTheme.Layout, null, {
-      // https://vitepress.dev/guide/extending-default-theme#layout-slots
-    })
-  },
-  enhanceApp({ app, router, siteData }) {
-    // ...
-  }
-} satisfies Theme
+    extends: DefaultTheme,
+    Layout: () => {
+        return h(DefaultTheme.Layout, null, {
+            // https://vitepress.dev/guide/extending-default-theme#layout-slots
+        });
+    },
+    enhanceApp({ app, router, siteData }) {
+        // ...
+    },
+} satisfies Theme;
--- a/docs/.vitepress/theme/sidebar.ts
+++ b/docs/.vitepress/theme/sidebar.ts
@@ -1,45 +1,45 @@
-import fs from 'fs'
-import path from 'path'
-import { DefaultTheme } from 'vitepress'
+import fs from "fs";
+import path from "path";
+import { DefaultTheme } from "vitepress";

 export const genSidebar = (
    lang: string,
    dirPath: string,
    options: {
-        title: string
-        collapsible?: boolean
-        ignore?: string[]
-    }
+        title: string;
+        collapsible?: boolean;
+        ignore?: string[];
+    },
 ): DefaultTheme.SidebarItem => {
-    const sidebarPath = path.resolve(process.cwd(), lang, dirPath)
-    const ignore = options.ignore || ['index.md']
+    const sidebarPath = path.resolve(process.cwd(), lang, dirPath);
+    const ignore = options.ignore || ["index.md"];

    const files = fs
        .readdirSync(sidebarPath)
-        .filter((file) => file.endsWith('.md') && !ignore.includes(file))
+        .filter((file) => file.endsWith(".md") && !ignore.includes(file));

    const items = files.map((file) => {
-        const content = fs.readFileSync(path.resolve(sidebarPath, file), 'utf-8')
-        const match = content.match(/^#\s+(.*)/)
-        const title = match ? match[1] : file.replace('.md', '')
+        const content = fs.readFileSync(path.resolve(sidebarPath, file), "utf-8");
+        const match = content.match(/^#\s+(.*)/);
+        const title = match ? match[1] : file.replace(".md", "");

-        let prefix = '/';
-        if (lang != 'en') {
+        let prefix = "/";
+        if (lang != "en") {
            prefix += lang;
-            prefix += '/';
+            prefix += "/";
        }

        return {
            text: title,
            /// Make sure link for en is actually root, beacuse Github Pages
            /// doesn't support redirect url.
-            link: `${prefix}${dirPath}/${file.replace('.md', '')}`
-        }
-    })
+            link: `${prefix}${dirPath}/${file.replace(".md", "")}`,
+        };
+    });

    return {
        text: options.title,
        collapsed: options.collapsible || false,
-        items
-    }
-}
+        items,
+    };
+};
--- a/docs/.vitepress/theme/style.css
+++ b/docs/.vitepress/theme/style.css
@@ -44,30 +44,30 @@
 * -------------------------------------------------------------------------- */

 :root {
-  --vp-c-default-1: var(--vp-c-gray-1);
-  --vp-c-default-2: var(--vp-c-gray-2);
-  --vp-c-default-3: var(--vp-c-gray-3);
-  --vp-c-default-soft: var(--vp-c-gray-soft);
+    --vp-c-default-1: var(--vp-c-gray-1);
+    --vp-c-default-2: var(--vp-c-gray-2);
+    --vp-c-default-3: var(--vp-c-gray-3);
+    --vp-c-default-soft: var(--vp-c-gray-soft);

-  --vp-c-brand-1: var(--vp-c-indigo-1);
-  --vp-c-brand-2: var(--vp-c-indigo-2);
-  --vp-c-brand-3: var(--vp-c-indigo-3);
-  --vp-c-brand-soft: var(--vp-c-indigo-soft);
+    --vp-c-brand-1: var(--vp-c-indigo-1);
+    --vp-c-brand-2: var(--vp-c-indigo-2);
+    --vp-c-brand-3: var(--vp-c-indigo-3);
+    --vp-c-brand-soft: var(--vp-c-indigo-soft);

-  --vp-c-tip-1: var(--vp-c-brand-1);
-  --vp-c-tip-2: var(--vp-c-brand-2);
-  --vp-c-tip-3: var(--vp-c-brand-3);
-  --vp-c-tip-soft: var(--vp-c-brand-soft);
+    --vp-c-tip-1: var(--vp-c-brand-1);
+    --vp-c-tip-2: var(--vp-c-brand-2);
+    --vp-c-tip-3: var(--vp-c-brand-3);
+    --vp-c-tip-soft: var(--vp-c-brand-soft);

-  --vp-c-warning-1: var(--vp-c-yellow-1);
-  --vp-c-warning-2: var(--vp-c-yellow-2);
-  --vp-c-warning-3: var(--vp-c-yellow-3);
-  --vp-c-warning-soft: var(--vp-c-yellow-soft);
+    --vp-c-warning-1: var(--vp-c-yellow-1);
+    --vp-c-warning-2: var(--vp-c-yellow-2);
+    --vp-c-warning-3: var(--vp-c-yellow-3);
+    --vp-c-warning-soft: var(--vp-c-yellow-soft);

-  --vp-c-danger-1: var(--vp-c-red-1);
-  --vp-c-danger-2: var(--vp-c-red-2);
-  --vp-c-danger-3: var(--vp-c-red-3);
-  --vp-c-danger-soft: var(--vp-c-red-soft);
+    --vp-c-danger-1: var(--vp-c-red-1);
+    --vp-c-danger-2: var(--vp-c-red-2);
+    --vp-c-danger-3: var(--vp-c-red-3);
+    --vp-c-danger-soft: var(--vp-c-red-soft);
 }

 /**
@@ -75,15 +75,15 @@
 * -------------------------------------------------------------------------- */

 :root {
-  --vp-button-brand-border: transparent;
-  --vp-button-brand-text: var(--vp-c-white);
-  --vp-button-brand-bg: var(--vp-c-brand-3);
-  --vp-button-brand-hover-border: transparent;
-  --vp-button-brand-hover-text: var(--vp-c-white);
-  --vp-button-brand-hover-bg: var(--vp-c-brand-2);
-  --vp-button-brand-active-border: transparent;
-  --vp-button-brand-active-text: var(--vp-c-white);
-  --vp-button-brand-active-bg: var(--vp-c-brand-1);
+    --vp-button-brand-border: transparent;
+    --vp-button-brand-text: var(--vp-c-white);
+    --vp-button-brand-bg: var(--vp-c-brand-3);
+    --vp-button-brand-hover-border: transparent;
+    --vp-button-brand-hover-text: var(--vp-c-white);
+    --vp-button-brand-hover-bg: var(--vp-c-brand-2);
+    --vp-button-brand-active-border: transparent;
+    --vp-button-brand-active-text: var(--vp-c-white);
+    --vp-button-brand-active-bg: var(--vp-c-brand-1);
 }

 /**
@@ -91,31 +91,23 @@
 * -------------------------------------------------------------------------- */

 :root {
-  --vp-home-hero-name-color: transparent;
-  --vp-home-hero-name-background: -webkit-linear-gradient(
-    120deg,
-    #bd34fe 30%,
-    #41d1ff
-  );
+    --vp-home-hero-name-color: transparent;
+    --vp-home-hero-name-background: -webkit-linear-gradient(120deg, #bd34fe 30%, #41d1ff);

-  --vp-home-hero-image-background-image: linear-gradient(
-    -45deg,
-    #bd34fe 50%,
-    #47caff 50%
-  );
-  --vp-home-hero-image-filter: blur(44px);
+    --vp-home-hero-image-background-image: linear-gradient(-45deg, #bd34fe 50%, #47caff 50%);
+    --vp-home-hero-image-filter: blur(44px);
 }

@media (min-width: 640px) {
-  :root {
-    --vp-home-hero-image-filter: blur(56px);
-  }
+    :root {
+        --vp-home-hero-image-filter: blur(56px);
+    }
 }

@media (min-width: 960px) {
-  :root {
-    --vp-home-hero-image-filter: blur(68px);
-  }
+    :root {
+        --vp-home-hero-image-filter: blur(68px);
+    }
 }

 /**
@@ -123,10 +115,10 @@
 * -------------------------------------------------------------------------- */

 :root {
-  --vp-custom-block-tip-border: transparent;
-  --vp-custom-block-tip-text: var(--vp-c-text-1);
-  --vp-custom-block-tip-bg: var(--vp-c-brand-soft);
-  --vp-custom-block-tip-code-bg: var(--vp-c-brand-soft);
+    --vp-custom-block-tip-border: transparent;
+    --vp-custom-block-tip-text: var(--vp-c-text-1);
+    --vp-custom-block-tip-bg: var(--vp-c-brand-soft);
+    --vp-custom-block-tip-code-bg: var(--vp-c-brand-soft);
 }

 /**
@@ -134,6 +126,5 @@
 * -------------------------------------------------------------------------- */

 .DocSearch {
-  --docsearch-primary-color: var(--vp-c-brand-1) !important;
+    --docsearch-primary-color: var(--vp-c-brand-1) !important;
 }
-
--- a/docs/clice.toml
+++ b/docs/clice.toml
@@ -1,92 +1,47 @@
-### clice configuration
+## # clice configuration

 # This section outlines the supported built-in variables for clice.
 # These variables can be referenced in strings using the syntax `${var}`.

 # Supported variables:
 # - `${version}`:         The version of clice.
-# - `${binary}`:          The path of the clice binary.
 # - `${llvm_version}`:    The LLVM version used by clice.
 # - `${workspace}`:       The workspace directory provided by the client.

-[server]
-    # Compile commands directories to search for compile_commands.json files.
-    compile_commands_dirs = ["${workspace}/build"]
+[project]
+# Enable experimental clang-tidy diagnostics.
+# This feature is tracked in https://github.com/clice-project/clice/issues/90.
+clang_tidy = false
+# Maximum number of active files to keep in memory. If the number of active files
+# exceeds this limit, the least recently used files will be removed.
+# The default value is 8. Whatever the number you set, the minimum is 1, the maximum is 512.
+max_active_file = 8
+# Directory for storing PCH and PCM files.
+cache_dir = "${workspace}/.clice/cache"
+# Directory for storing index files.
+index_dir = "${workspace}/.clice/index"
+logging_dir = "${workspace}/.clice/logs"
+# Compile commands files or directories to search for compile_commands.json files.
+compile_commands_paths = ["${workspace}/build"]

-    # Maximum number of active files to keep in memory. If the number of active files
-    # exceeds this limit, the least recently used files will be removed. 
-    # The default value is 8. Whatever the number you set, the minimum is 1, the maximum is 512.
-    max_active_file = 8
-
-# Cache configuration for storing precompiled headers and modules.
-[cache]
-    # Directory for storing PCH and PCM files.
-    dir = "${workspace}/.clice/cache"
-
-    # Maximum number of cache files to keep. If the total exceeds this limit, clice
-    # deletes the oldest files automatically. Set to 0 to disable the limit.
-    limit = 0
-
-# Index configuration for symbol and feature indexing.
-[index]
-    # Directory for storing index files.
-    dir = "${workspace}/.clice/index"
-
-    # Whether to index entities in implicit template instantiations.
-    implicitInstantiation = true
-
-# Control the behavior for specific files. Note that Clice matches rules 
-# in order. If you want to add your own rules, either delete this rule 
+# Control the behavior for specific files. Note that Clice matches rules
+# in order. If you want to add your own rules, either delete this rule
 # or insert your rule before it.
 [[rules]]
-    # Files matching the specified pattern will have this rule applied.
-    #
-    # Patterns can use the following syntax:
-    # - `*`: Matches one or more characters in a path segment.
-    # - `?`: Matches a single character in a path segment.
-    # - `**`: Matches any number of path segments, including none.
-    # - `{}`: Groups conditions (e.g., `**/*.{ts,js}` matches all TypeScript 
-    #   and JavaScript files).
-    # - `[]`: Declares a range of characters to match in a path segment 
-    #   (e.g., `example.[0-9]` matches `example.0`, `example.1`, etc.).
-    # - `[!...]`: Negates a range of characters to match in a path segment 
-    #   (e.g., `example.[!0-9]` matches `example.a`, `example.b`, but not `example.0`).
-    pattern = "**/*"
-
-    # Commands to append to the original command list (e.g., ["-std=c++17"]).
-    append = []
-
-    # Commands to remove from the original command list.
-    remove = []
-
-    # Controls whether the file is treated as readonly.
-    # Possible values: ["auto", "always", "never"]
-    #
-    # - "auto": Treats the file as readonly until you edit it.
-    # - "always": Always treats the file as readonly.
-    # - "never": Always treats the file as non-readonly.
-    #
-    # Readonly means the file is not editable, and LSP requests such as 
-    # code actions or completions will not be sent to the server. This avoids 
-    # dynamic computation and allows pre-indexed results to be loaded directly, 
-    # improving performance.
-    readonly = "auto"
-
-    # Controls how header files are treated.
-    # Possible values: ["auto", "always", "never"]
-    #
-    # - "auto": Attempts to infer the header context first. If no header context 
-    #   is found, the file will be treated as a normal source file.
-    # - "always": Always treats the file as a header file. If no header context
-    #   is found, errors will be reported.
-    # - "never": Always treats the file as a source file.
-    #
-    # Header context refers to the related source files or additional metadata 
-    # linked to the header file.
-    header = "auto"
-
-    # Specifies extra header contexts (file paths) for the file.
-    # Normally, header contexts are inferred automatically once the file is indexed.
-    # However, if you need immediate context before indexing completes, you can 
-    # provide it manually using this field.
-    contexts = []
+# Files matching the specified pattern will have this rule applied.
+#
+# Patterns can use the following syntax:
+# - `*`: Matches one or more characters in a path segment.
+# - `?`: Matches a single character in a path segment.
+# - `**`: Matches any number of path segments, including none.
+# - `{}`: Groups conditions (e.g., `**/*.{ts,js}` matches all TypeScript
+#   and JavaScript files).
+# - `[]`: Declares a range of characters to match in a path segment
+#   (e.g., `example.[0-9]` matches `example.0`, `example.1`, etc.).
+# - `[!...]`: Negates a range of characters to match in a path segment
+#   (e.g., `example.[!0-9]` matches `example.a`, `example.b`, but not `example.0`).
+patterns = ["**/*"]
+# Commands to append to the original command list (e.g., ["-std=c++17"]).
+append = []
+# Commands to remove from the original command list.
+remove = []
--- a/docs/en/architecture.md
+++ b/docs/en/architecture.md
@@ -0,0 +1,183 @@
+# Server Architecture
+
+clice uses a **multi-process architecture** where a single **Master Server** coordinates multiple **Worker** processes. This design isolates Clang AST operations (which are memory-heavy and may crash) from the main LSP event loop.
+
+## Overview
+
+```
+┌──────────────┐   JSON/LSP    ┌────────────────┐   Bincode/IPC   ┌──────────────────┐
+│   LSP Client │ ◄──────────► │  Master Server  │ ◄─────────────► │ Stateful Workers │
+│   (Editor)   │    (stdio)    │                 │    (stdio)      │  (AST cache)     │
+└──────────────┘               │  - Lifecycle    │                 └──────────────────┘
+                               │  - Documents    │
+                               │  - CDB          │   Bincode/IPC   ┌──────────────────┐
+                               │  - Build drain  │ ◄─────────────► │ Stateless Workers│
+                               │  - Indexing     │    (stdio)      │  (one-shot tasks)│
+                               └────────────────┘                 └──────────────────┘
+```
+
+## Master Server
+
+The master server (`src/server/master_server.cpp`) is the central coordinator. It runs a single-threaded async event loop and never touches Clang directly. Its responsibilities:
+
+### LSP Lifecycle
+
+The server progresses through these states:
+
+1. **Uninitialized** — waiting for `initialize` request
+2. **Initialized** — capabilities exchanged, waiting for `initialized` notification
+3. **Ready** — workers spawned, workspace loaded, accepting requests
+4. **ShuttingDown** — `shutdown` received, draining work
+5. **Exited** — `exit` received, stopping the event loop
+
+On `initialized`, the master:
+
+- Loads configuration from `clice.toml` (or uses defaults)
+- Starts the worker pool (spawns stateful + stateless processes)
+- Loads `compile_commands.json` and builds an include graph
+- Starts the background indexer coroutine (if enabled)
+
+### Document Management
+
+Each open document is tracked in a `DocumentState` with:
+
+- Current `version` and `text` (kept in sync via `didOpen`/`didChange`)
+- A `generation` counter to detect stale compile results
+- Build state flags (`build_running`, `build_requested`, `drain_scheduled`)
+
+When a document is opened or changed:
+
+1. The include graph is re-scanned (via dependency directives)
+2. The compile unit is registered/updated in the `CompileGraph`
+3. A debounced build is scheduled
+
+### Build Drain
+
+The `run_build_drain` coroutine implements debounced compilation:
+
+1. Wait for the debounce timer (default 200ms) to expire
+2. Ensure PCH/PCM dependencies are ready via `CompileGraph`
+3. Send a `compile` request to the assigned stateful worker
+4. Publish diagnostics from the result (or clear them on failure)
+5. If more edits arrived during compilation (`build_requested`), loop back to step 2
+
+This ensures rapid typing doesn't trigger a compile per keystroke.
+
+### Request Routing
+
+Feature requests are split between two worker types:
+
+**Stateful workers** (affinity-routed by file path):
+
+- `textDocument/hover`
+- `textDocument/semanticTokens/full`
+- `textDocument/inlayHint`
+- `textDocument/foldingRange`
+- `textDocument/documentSymbol`
+- `textDocument/documentLink`
+- `textDocument/codeAction`
+- `textDocument/definition`
+
+**Stateless workers** (round-robin):
+
+- `textDocument/completion`
+- `textDocument/signatureHelp`
+
+All feature responses use `RawValue` passthrough — the worker serializes the LSP result to JSON, and the master forwards the raw JSON bytes to the client without deserializing. This avoids bincode↔JSON conversion overhead and serde annotation conflicts.
+
+## Worker Pool
+
+The worker pool (`src/server/worker_pool.cpp`) manages spawning and communicating with worker processes. Each worker is a child process of the same `clice` binary, launched with `--mode stateful-worker` or `--mode stateless-worker`.
+
+### Communication
+
+Workers communicate with the master via **stdio pipes** using a **bincode** serialization format (via `kota::ipc::BincodePeer`). This is more compact and faster than JSON for internal IPC, while the master handles JSON for the external LSP protocol.
+
+### Stateful Worker Routing
+
+Stateful workers use **affinity routing**: each file is consistently assigned to the same worker so that the worker retains the cached AST. Assignment uses a **least-loaded** strategy for new files, with **LRU tracking** to manage ownership.
+
+When a worker exceeds its document capacity (currently hardcoded at 16 documents), it evicts the least-recently-used document and notifies the master via an `evicted` notification.
+
+### Stateless Worker Routing
+
+Stateless workers use simple **round-robin** dispatch. Each request includes the full source text and compilation arguments, so any worker can handle it independently.
+
+## Stateful Worker
+
+The stateful worker (`src/server/stateful_worker.cpp`) caches compiled ASTs in memory. Key behavior:
+
+- **Compile**: Parses source code into a `CompilationUnit`, caches the AST, and returns diagnostics as a `RawValue` (JSON bytes)
+- **Feature queries**: Look up the cached AST and invoke the corresponding `feature::*` function (hover, semantic tokens, etc.), serializing the result to JSON
+- **Document updates**: Received as notifications — the worker updates the stored text and marks the document as `dirty`, causing feature queries to return `null` until recompilation
+- **Eviction**: LRU-based; evicts the oldest document when capacity is exceeded, notifying the master
+- **Concurrency**: Each document has a per-document `kota::mutex` (strand) to serialize compilation and feature queries. Heavy work (compilation, feature extraction) runs on a thread pool via `kota::queue`.
+
+## Stateless Worker
+
+The stateless worker (`src/server/stateless_worker.cpp`) handles one-shot requests that don't benefit from cached ASTs:
+
+- **Completion**: Creates a fresh compilation with `CompilationKind::Completion` and invokes `feature::code_complete`
+- **Signature help**: Similar to completion, using `feature::signature_help`
+- **Build PCH**: Compiles a precompiled header to a temporary file
+- **Build PCM**: Compiles a C++20 module interface to a temporary file
+- **Index**: Compiles a file for indexing (TUIndex generation — currently a stub)
+
+All requests are dispatched to a thread pool via `kota::queue`.
+
+## Compile Graph
+
+The compile graph (`src/server/compile_graph.cpp`) tracks compilation unit dependencies as a DAG. It handles:
+
+- **Registration**: Each file registers its included dependencies
+- **Cascade invalidation**: When a file changes, all transitive dependents are marked dirty and their ongoing compilations are cancelled
+- **Dependency compilation**: Before compiling a file, `compile_deps` ensures all dependencies (PCH, PCMs) are built first
+- **Cancellation**: Uses `kota::cancellation_source` to abort in-flight compilations when files are invalidated
+
+## Configuration
+
+The server reads configuration from `clice.toml` (or `.clice/config.toml`) in the workspace root. If no config file exists, sensible defaults are computed from system resources:
+
+| Setting                  | Default               | Description                                 |
+| ------------------------ | --------------------- | ------------------------------------------- |
+| `stateful_worker_count`  | CPU cores / 4         | Number of stateful worker processes         |
+| `stateless_worker_count` | CPU cores / 4         | Number of stateless worker processes        |
+| `worker_memory_limit`    | 4 GB                  | Memory limit per stateful worker            |
+| `compile_commands_path`  | auto-detect           | Path to `compile_commands.json`             |
+| `cache_dir`              | `<workspace>/.clice/` | Cache directory for PCH/PCM files           |
+| `debounce_ms`            | 200                   | Debounce interval for recompilation         |
+| `enable_indexing`        | true                  | Enable background indexing                  |
+| `idle_timeout_ms`        | 3000                  | Idle time before background indexing starts |
+
+String values support `${workspace}` substitution.
+
+## IPC Protocol
+
+The master and workers communicate using custom RPC messages defined in `src/server/protocol.h`. Each message type has a `RequestTraits` or `NotificationTraits` specialization that defines the method name and result type.
+
+### Stateful Worker Messages
+
+| Method                        | Direction    | Purpose                               |
+| ----------------------------- | ------------ | ------------------------------------- |
+| `clice/worker/compile`        | Request      | Compile source and return diagnostics |
+| `clice/worker/hover`          | Request      | Get hover info at position            |
+| `clice/worker/semanticTokens` | Request      | Get semantic tokens for file          |
+| `clice/worker/inlayHints`     | Request      | Get inlay hints for range             |
+| `clice/worker/foldingRange`   | Request      | Get folding ranges                    |
+| `clice/worker/documentSymbol` | Request      | Get document symbols                  |
+| `clice/worker/documentLink`   | Request      | Get document links                    |
+| `clice/worker/codeAction`     | Request      | Get code actions for range            |
+| `clice/worker/goToDefinition` | Request      | Go to definition at position          |
+| `clice/worker/documentUpdate` | Notification | Update document text (marks dirty)    |
+| `clice/worker/evict`          | Notification | Master → Worker: evict a document     |
+| `clice/worker/evicted`        | Notification | Worker → Master: document was evicted |
+
+### Stateless Worker Messages
+
+| Method                       | Direction | Purpose                      |
+| ---------------------------- | --------- | ---------------------------- |
+| `clice/worker/completion`    | Request   | Code completion at position  |
+| `clice/worker/signatureHelp` | Request   | Signature help at position   |
+| `clice/worker/buildPCH`      | Request   | Build precompiled header     |
+| `clice/worker/buildPCM`      | Request   | Build C++20 module interface |
+| `clice/worker/index`         | Request   | Index a translation unit     |
--- a/docs/en/design/header-context.md
+++ b/docs/en/design/header-context.md
@@ -28,7 +28,7 @@ A more extreme case is non-self-contained header files, for example:

 ```cpp
 // a.h
-struct Y { 
+struct Y {
    X x;
 };

--- a/docs/en/dev/build.md
+++ b/docs/en/dev/build.md
@@ -1,131 +1,73 @@
 # Build from Source

-## Supported Platforms
+clice depends on C++23 features and requires a modern C++ toolchain. We also need to link against LLVM/Clang to parse ASTs. To speed up builds, the default configuration downloads our published [clice-llvm](https://github.com/clice-io/clice-llvm) prebuilt package. This assumes your local environment matches the prebuilt environment closely (especially when enabling Address Sanitizer or LTO).

- Windows
- Linux
- MacOS
+To simplify setup and keep builds reproducible, we **strongly recommend** [pixi](https://pixi.prefix.dev/latest) to manage the development environment. Dependency versions are pinned in `pixi.toml`.

-## Prerequisites
+If you prefer not to use pixi, see [Manual Build](#manual-build) below.

-This section introduces the prerequisites for compiling clice.
+## Quick Start

-### Toolchain
+Install pixi following the [official guide](https://pixi.prefix.dev/latest/installation).

- clang >= 19
- c++23 compatible standard library
-  - MSVC STL >= 19.44(VS 2022 17.4)
-  - GCC libstdc++ >= 14 
-  - Clang libc++ >= 20
-  
-clice uses C++23 as the language standard. Please ensure you have an available clang 19 or above compiler, as well as a standard library compatible with C++23.
+We ship several tasks; the commands below configure, build, and run tests:

-> clice can currently only be compiled with clang. In the future, we will improve this to allow compilation with gcc and msvc.
+```shell
+# configure && build (default RelWithDebInfo)
+pixi run build

-### LLVM Libs
-
- 20.1.5 <= llvm libs < 21
-
-Due to the complexity of C++ syntax, writing a new parser from scratch is unrealistic. clice calls clang's API to parse C++ source files and obtain AST, which means it needs to link llvm/clang libs. Additionally, since clice uses clang's private headers, these private headers are not available in llvm's binary release, so you cannot directly use the system's llvm package.
-
-If you can find the llvm commit corresponding to your system's llvm package, copy the following three files from that commit:
-
- `clang/lib/Sema/CoroutineStmtBuilder.h`
- `clang/lib/Sema/TypeLocBuilder.h` 
- `clang/lib/Sema/TreeTransform.h`
-
-Copy them to `LLVM_INSTALL_PATH/include/clang/Sema/`.
-
-Besides this method, there are two other ways to obtain the llvm libs required by clice:
-
-1. Use our precompiled version
-
-```bash
-# .github/workflows/cmake.yml
-
-# Linux precompiled binary require glibc 2.35 (build on ubuntu 22.04)
-$ mkdir -p ./.llvm
-$ curl -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/x86_64-linux-gnu-release.tar.xz" | tar -xJ -C ./.llvm
-
-# MacOS precompiled binary require macos15+
-$ mkdir -p ./.llvm
-$ curl -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/arm64-macosx-apple-release.tar.xz" | tar -xJ -C ./.llvm
-
-# Windows precompiled binary only MD runtime support
-$ curl -O -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/x64-windows-msvc-release.7z"
-$ 7z x x64-windows-msvc-release.7z "-o.llvm"
+# unit && integration
+pixi run test
 ```

-> [!IMPORTANT]
->
-> For debug versions of llvm libs, we enabled address sanitizer during build, and address sanitizer depends on compiler rt, which is very sensitive to compiler versions. So if using debug versions, please ensure your clang's compiler rt version is **strictly consistent** with what we used during build.
-> 
-> - Windows currently has no debug build of llvm libs because it doesn't support building clang as a dynamic library. Related progress can be found [here](https://discourse.llvm.org/t/llvm-is-buildable-as-a-windows-dll/87748)
-> - Linux uses clang20
-> - MacOS uses homebrew llvm@20, definitely don't use apple clang
+For finer-grained tasks (first argument sets the build type):

-2. Compile llvm/clang from scratch
-
-This is the most recommended approach, ensuring environment consistency and avoiding crash issues caused by ABI inconsistencies. We provide a script for building the llvm libs required by clice: [build-llvm-libs.py](https://github.com/clice-project/clice/blob/main/scripts/build-llvm-libs.py).
-
-```bash
-$ cd llvm-project
-$ python3 <clice>/scripts/build-llvm-libs.py debug
+```shell
+pixi run cmake-config Debug
+pixi run cmake-build Debug
+pixi run unit-test Debug
+pixi run integration-test Debug
 ```

-You can also refer to llvm's official build tutorial [Building LLVM with CMake](https://llvm.org/docs/CMake.html).
+> [!TIP]
+> If you want to develop directly with `cmake`, `ninja`, `clang++`, etc., run `pixi shell` to enter a shell with all env vars configured.

-## Building
+## Manual Build

-After handling the prerequisites, you can start building clice. We provide two build methods: cmake/xmake.
+If you plan to build manually, first ensure your toolchain matches the versions defined in `pixi.toml`.
+
+> Compatibility: In theory clice does not rely on compiler-specific extensions, so mainstream compilers (GCC/Clang/MSVC) should work. However, CI only guarantees specific versions of Clang. Other compilers or versions are supported on a **best-effort** basis. Please open an issue or PR if you hit problems.

 ### CMake

-Below are the cmake parameters supported by clice:
-
- `LLVM_INSTALL_PATH` specifies the installation path of llvm libs
- `CLICE_ENABLE_TEST` whether to build clice's unit tests
-
-For example:
-
-```bash
-$ cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DLLVM_INSTALL_PATH="./.llvm" -DCLICE_ENABLE_TEST=ON -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
-$ cmake --build build
-```
-
-### Xmake
-
-Use the following command to build clice:
-
-```bash
-$ xmake f -c --dev=true --mode=debug --toolchain=clang --llvm="./.llvm" --enable_test=true
-$ xmake build --all
-```
-
-> --llvm is optional. If not specified, xmake will automatically download our precompiled binary
-
-## Run Tests
-
-clice has two forms of tests: unit tests and integration tests.
-
- Run unit tests:
-
-```bash
-$ ./build/bin/unit_tests --test-dir="./tests/data" --resource-dir="<LLVM_INSTALL_PATH>/lib/clang/20"
-```
-
- Run integration tests:
-
-```bash
-$ pytest -s --log-cli-level=INFO tests/integration --executable=./build/bin/clice --resource-dir="<LLVM_INSTALL_PATH>/lib/clang/20"
-```
-
-> resource-dir is clang's built-in header file folder
-
-Or, if you use xmake as the build system, you can directly run tests through xmake:
-
 ```shell
-$ xmake test --verbose
-$ xmake run unit_tests --verbose
-$ xmake test integration_tests/default --verbose
+cmake -B build -G Ninja \
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+    -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain.cmake \
+    -DCLICE_ENABLE_TEST=ON
 ```
+
+> Note: `CMAKE_TOOLCHAIN_FILE` is optional. If your toolchain exactly matches ours, you can use the predefined `cmake/toolchain.cmake`; otherwise remove that flag.
+
+Optional build options:
+
+| Option               | Default | Effect                                                                                                    |
+| -------------------- | ------- | --------------------------------------------------------------------------------------------------------- |
+| LLVM_INSTALL_PATH    | ""      | Build clice with LLVM from a custom path                                                                  |
+| CLICE_ENABLE_TEST    | OFF     | Build clice unit tests                                                                                    |
+| CLICE_USE_LIBCXX     | OFF     | Build clice with libc++ (adds `-std=libc++`); if enabled, ensure the LLVM libs are also built with libc++ |
+| CLICE_CI_ENVIRONMENT | OFF     | Enable the `CLICE_CI_ENVIRONMENT` macro; some tests only run in CI                                        |
+
+## About LLVM
+
+clice calls Clang APIs to parse C++ code, so it must link against LLVM/Clang. Because clice uses Clang's private headers (usually absent from distro packages), the system LLVM package cannot be used directly.
+
+Two ways to satisfy this dependency:
+
+1. We publish prebuilt binaries of the LLVM version we use at [clice-llvm](https://github.com/clice-io/clice-llvm/releases) for CI and release builds. During builds, cmake downloads these LLVM libs by default.
+
+> [!IMPORTANT]
+>
+> For debug LLVM builds, we enable address sanitizer, which depends on compiler-rt and is very sensitive to compiler version. If you use a debug build, ensure your clang compiler-rt version matches the one defined in `pixi.toml`.
+
+2. Build LLVM/Clang yourself to match your environment. If the default prebuilt binaries fail due to ABI or library version mismatches, or you need a custom debug build, use this approach. We provide `scripts/build-llvm.py` to build the required LLVM libs, or refer to LLVM's official guide [Building LLVM with CMake](https://llvm.org/docs/CMake.html).
--- a/docs/en/dev/contribution.md
+++ b/docs/en/dev/contribution.md
@@ -2,10 +2,11 @@

 We welcome any contributions!

-Please refer to [build](./build.md) to build clice.
+Please refer to [build](./build.md) to build clice, refer to [test and debug](./test-and-debug.md) to test and debug clice.

 ## Code Style

 Naming:
+
 - Variable names: lowercase with underscores
 - Class names, enum names: PascalCase
--- a/docs/en/dev/extension.md
+++ b/docs/en/dev/extension.md
@@ -0,0 +1,70 @@
+# Extension
+
+This section covers development and release workflows for the editor extensions (VSCode / Neovim / Zed).
+
+## VSCode
+
+The VSCode extension uses the Node/PNPM/VSCE toolchain. Work inside the pixi `node` environment for consistent versions.
+
+```shell
+# prepare environment (install pixi first)
+pixi shell -e node
+
+# install deps (uses pnpm-lock)
+pixi run install-vscode
+
+# package the extension; outputs editors/vscode/*.vsix
+pixi run build-vscode
+```
+
+Publish to the VSCode Marketplace (`VSCE_PAT` env var required):
+
+```shell
+pixi run publish-vscode
+```
+
+> [!TIP]
+> If clice is already built locally, set `clice.executable` in VSCode settings to point the extension to your custom binary.
+
+Develop and debug:
+
+1. `pixi shell -e node`
+2. In `editors/vscode`, run `pnpm run watch` for incremental builds
+3. In VSCode, use the “Run Extension/Launch Extension” configs, or run `code --extensionDevelopmentPath=$(pwd)/editors/vscode`
+
+Common scripts (inside `pixi shell -e node`):
+
+```bash
+pnpm run package # same as pixi run build-vscode
+pnpm run publish # same as pixi run publish-vscode
+```
+
+If you skip pixi, install node.js >= 20 and pnpm yourself, then in `editors/vscode` run:
+
+```bash
+pnpm install
+pnpm run package
+```
+
+## Neovim
+
+The Neovim extension lives in `editors/nvim` and is written in Lua. It is still evolving.
+
+- Add the repo path to `runtimepath`, e.g. `set rtp+=/path/to/clice/editors/nvim`
+- Or create a local symlink: `~/.config/nvim/pack/clice/start/clice` -> `<repo>/editors/nvim`
+- Ensure the `clice` executable is discoverable in `$PATH`
+
+Dev tips: the codebase is small—load it directly in Neovim and watch `:messages`/LSP logs; format with `stylua` (config included).
+
+## Zed
+
+The Zed extension lives in `editors/zed` and uses Rust plus `zed_extension_api`.
+
+Suggested local verification:
+
+```bash
+cd editors/zed
+cargo build --release
+```
+
+Then load the local extension per Zed's official guide (Zed CLI required). Make sure `clice` is on `PATH` before launching. Follow the Zed extension publishing flow when releasing.
--- a/docs/en/dev/test-and-debug.md
+++ b/docs/en/dev/test-and-debug.md
@@ -0,0 +1,77 @@
+# Test and Debug
+
+## Run Tests
+
+clice has two types of tests: unit tests and integration tests.
+
+- Run unit tests
+
+```bash
+$ ./build/bin/unit_tests --test-dir="./tests/data"
+```
+
+- Run integration tests
+
+We use pytest to run integration tests. Please refer to `pyproject.toml` to install the required Python libraries.
+
+```bash
+$ pytest -s --log-cli-level=INFO tests/integration --executable=./build/bin/clice
+```
+
+## Debug
+
+If you want to attach a debugger to clice for debugging, it is recommended to first start clice in socket mode independently, and then connect the client to it.
+
+```shell
+$ ./build/bin/clice --mode=socket --port=50051
+```
+
+After the server starts, you can connect a client to the server in the following two ways:
+
+- Connect by running a specific test with pytest
+
+You can run a single integration test case to connect to a running clice instance. This is very useful for reproducing and debugging specific scenarios.
+
+```shell
+$ pytest -s --log-cli-level=INFO tests/integration/test_file_operation.py::test_did_open --mode=socket --port=50051
+```
+
+- Use VS Code for practical testing
+
+You can also connect to a running clice service by configuring the clice-vscode extension, allowing you to debug in a real-world usage scenario.
+
+1.  Download the [clice-vscode](https://marketplace.visualstudio.com/items?itemName=ykiko.clice-vscode) extension from the Marketplace.
+
+2.  Configure `settings.json`: Create a `.vscode/settings.json` file in your project's root directory and add the following content:
+
+    ```jsonc
+    {
+      // Point this to the clice binary you downloaded.
+      "clice.executable": "/path/to/your/clice/executable",
+
+      // Enable socket mode.
+      "clice.mode": "socket",
+      "clice.port": 50051,
+
+      // Optional: Set this to an empty string to turn off the clangd.
+      "clangd.path": "",
+    }
+    ```
+
+3.  Reload Window: After modifying the configuration, execute the `Developer: Reload Window` command in VS Code for the settings to take effect. The extension will automatically connect to the clice instance listening on port 50051.
+
+If you need to modify or debug the clice-vscode extension itself, follow these steps:
+
+1.  Clone and install dependencies:
+
+    ```shell
+    $ git clone https://github.com/clice-io/clice-vscode
+    $ cd clice-vscode
+    $ npm install
+    ```
+
+2.  Open the extension project with VS Code: Open the `clice-vscode` folder in a new VS Code window.
+
+3.  Create debug configuration: In the `clice-vscode` project, also create a `.vscode/settings.json` file with the same content as above.
+
+4.  Press `F5`. This will launch an [Extension Development Host] window. This is a new VS Code window with your local clice-vscode extension code loaded. Open your C++ project in this new window, and it should automatically connect to clice.
--- a/docs/en/guide/configuration.md
+++ b/docs/en/guide/configuration.md
@@ -2,7 +2,21 @@

 This is the documentation for `clice.toml`.

-## Server
+## Project
+
+| Name                | Type     | Default                       |
+| ------------------- | -------- | ----------------------------- |
+| `project.cache_dir` | `string` | `"${workspace}/.clice/cache"` |
+
+Folder for storing PCH and PCM caches.
+<br>
+
+| Name                | Type     | Default                       |
+| ------------------- | -------- | ----------------------------- |
+| `project.index_dir` | `string` | `"${workspace}/.clice/index"` |
+
+Folder for storing index files.
+<br>

 ## Rule

@@ -11,7 +25,7 @@ This is the documentation for `clice.toml`.

 | Name               | Type                |
 | ------------------ | ------------------- |
-| `[rules].pattern`  | `array` of `string` |
+| `[rules].patterns` | `array` of `string` |

 Glob patterns for matching file paths, following LSP's [standard](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#documentFilter).

@@ -21,72 +35,18 @@ Glob patterns for matching file paths, following LSP's [standard](https://micros
 - `{}`: Used for grouping conditions (e.g., `**/*.{ts,js}` matches all TypeScript and JavaScript files).
 - `[]`: Declares a character range to match in a path segment (e.g., `example.[0-9]` matches `example.0`, `example.1`, etc.).
 - `[!...]`: Excludes a character range to match in a path segment (e.g., `example.[!0-9]` matches `example.a`, `example.b`, but not `example.0`).
-<br>
+  <br>

-| Name              | Type                | Default |
-| ----------------- | ------------------- | ------- |
-| `[rules].append`  | `array` of `string` | `[]`    |
+| Name             | Type                | Default |
+| ---------------- | ------------------- | ------- |
+| `[rules].append` | `array` of `string` | `[]`    |

 Commands to append to the original command list. For example, `append = ["-std=c++17"]`.
 <br>

-| Name              | Type                | Default |
-| ----------------- | ------------------- | ------- |
-| `[rules].remove`  | `array` of `string` | `[]`    |
+| Name             | Type                | Default |
+| ---------------- | ------------------- | ------- |
+| `[rules].remove` | `array` of `string` | `[]`    |

 Commands to remove from the original command list. For example, `remove = ["-std=c++11"]`.
 <br>
-
-| Name                | Type     | Default |
-| ------------------- | -------- | ------- |
-| `[rules].readonly`  | `string` | `"auto"` |
-
-Controls whether the file is treated as read-only. Values can be one of `"auto"`, `"always"`, and `"never"`.
-
- `"auto"`: The file is treated as read-only before you edit it.
- `"always"`: Always treat the file as read-only.
- `"never"`: Always treat the file as non-read-only.
-
-Read-only means the file is not editable, and LSP requests like code actions or completions won't be triggered on it. This avoids dynamic computation and allows direct loading of pre-indexed results, improving performance.
-<br>
-
-| Name              | Type     | Default |
-| ----------------- | -------- | ------- |
-| `[rules].header`  | `string` | `"auto"` |
-
-Controls how to handle header files. Values can be one of `"auto"`, `"always"`, and `"never"`.
-
- `"auto"`: First try to infer header file context. If no header file context is found, the file will be treated as a regular source file.
- `"always"`: Always treat the file as a header file. If no header file context is found, an error will be reported.
- `"never"`: Always treat the file as a source file.
-
-Header file context refers to the source files or other metadata associated with that header file.
-<br>
-
-| Name                 | Type                | Default |
-| -------------------- | ------------------- | ------- |
-| `[rules].contexts`   | `array` of `string` | `[]`    |
-
-Specify additional header file contexts (file paths) for the file.
-
-Usually, once a file is indexed, header file context is automatically inferred. However, if you need immediate context before indexing is complete, you can manually provide it using this field.
-
-## Cache
-
-| Name        | Type     | Default                        |
-| ----------- | -------- | ------------------------------ |
-| `cache.dir` | `string` | `"${workspace}/.clice/cache"`  |
-
-Folder for storing PCH and PCM caches.
-<br>
-
-## Index
-
-| Name        | Type     | Default                        |
-| ----------- | -------- | ------------------------------ |
-| `index.dir` | `string` | `"${workspace}/.clice/index"`  |
-
-Folder for storing index files.
-<br>
-
-## Feature
--- a/docs/en/guide/quick-start.md
+++ b/docs/en/guide/quick-start.md
@@ -46,18 +46,81 @@ Note: This option only works when cmake's generator is set to makefile and ninja

 ### Bazel

-TODO:
+Bazel has no native support to generate a compilation database. The recommended solution is to use [bazel-compile-commands-extractor](https://github.com/hedronvision/bazel-compile-commands-extractor). After setting it up, you can generate `compile_commands.json` with:
+
+```bash
+bazel run @hedron_compile_commands//:refresh_all
+```

 ### Visual Studio

-TODO:
+Visual Studio (2019 16.1+) can generate a compilation database via CMake integration. Open your project as a CMake project, then configure the generation in `CMakeSettings.json`:
+
+```json
+{
+  "configurations": [
+    {
+      "name": "x64-Debug",
+      "generator": "Ninja",
+      "buildRoot": "${projectDir}\\build",
+      "cmakeCommandArgs": "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
+    }
+  ]
+}
+```
+
+Alternatively, for MSBuild-based projects (`.vcxproj`), you can use [compiledb-vs](https://github.com/pjbroad/compiledb-vs) or [catter](https://github.com/clice-io/catter) to generate the compilation database.

 ### Makefile

-TODO:
+For Makefile-based projects, use [bear](https://github.com/rizsotto/Bear) to intercept compilation commands:
+
+```bash
+bear -- make
+```
+
+This will generate a `compile_commands.json` in the current directory. Note that `bear` requires a clean build to capture all commands — run `make clean` before `bear -- make` if needed.
+
+Alternatively, if you use GNU Make, you can use [compiledb](https://github.com/nicktimko/compiledb):
+
+```bash
+compiledb make
+```
+
+### Meson
+
+Meson generates a compilation database automatically during setup:
+
+```bash
+meson setup build
+```
+
+The `compile_commands.json` will be in the `build` directory.

 ### Xmake

+Use one of the following approaches to generate a compilation database.
+
+#### Command Line
+
+Run the following command to manually generate a compilation database:
+
+```bash
+xmake project -k compile_commands --lsp=clangd build
+```
+
+> Compilation database generated manually doesn't automatically update itself. Re-generate if changes are made to the project.
+
+#### VSCode Extension
+
+The Xmake official VSCode extension automatically generates the compilation database when `xmake.lua` is updated. However, it generates the database to the `.vscode` directory by default. Add this setting in `settings.json`:
+
+```json
+"xmake.compileCommandsDirectory": "build"
+```
+
+to explicitly ask the extension to generate the compilation database in `build`.
+
 ### Others

-For any other build system, you can try using [bear](https://github.com/rizsotto/Bear) or [scan-build](https://github.com/rizsotto/scan-build) to intercept compilation commands and obtain the compilation database (no guarantee of success). We plan to write a **new tool** in the future that captures compilation commands through a fake compiler approach.
+For any other build system, you can use [catter](https://github.com/clice-io/catter) to generate a compilation database. It captures compilation commands through a fake compiler approach and is designed to work reliably with any build system that invokes a compiler executable.
--- a/docs/en/index.md
+++ b/docs/en/index.md
@@ -16,8 +16,8 @@ hero:
      text: Contribution
      link: /dev/contribution
  image:
-      src: /image.png
-      alt: clice
+    src: /image.png
+    alt: clice

 features:
  - icon: T
@@ -32,4 +32,4 @@ features:
  - icon: I
    title: Better Performance
    details: Excellent asynchronous task scheduling, support for compilation task cancellation, caching necessary information, avoiding meaningless CPU waste
---
+---
--- a/docs/package-lock.json
+++ b/docs/package-lock.json
--- a/docs/package.json
+++ b/docs/package.json
@@ -1,12 +1,22 @@
 {
+  "name": "docs",
+  "private": true,
  "type": "module",
  "devDependencies": {
-    "@types/node": "^24.1.0",
-    "vitepress": "^1.6.3"
+    "@types/node": "^24.10.4",
+    "vitepress": "^1.6.4"
  },
  "scripts": {
    "docs:dev": "vitepress dev",
    "docs:build": "vitepress build",
    "docs:preview": "vitepress preview"
+  },
+  "pnpm": {
+    "overrides": {
+      "esbuild": "~0.25.0"
+    },
+    "ignoredBuiltDependencies": [
+      "esbuild"
+    ]
  }
 }
--- a/docs/pnpm-lock.yaml
+++ b/docs/pnpm-lock.yaml
--- a/docs/semantic-tokens-example.cpp
+++ b/docs/semantic-tokens-example.cpp
@@ -58,4 +58,5 @@ struct Widget {

 template <typename T>
 Widget(T) -> Widget<typename T::value_type>;
+
 }  // namespace foo
--- a/docs/zh/design/architecture.md
+++ b/docs/zh/design/architecture.md
@@ -26,4 +26,4 @@ clice 是一个语言服务器，首先是一个服务器。它使用 [libuv](ht

 ## Support

-一些其它的工具库。
+一些其它的工具库。
--- a/docs/zh/design/compilation.md
+++ b/docs/zh/design/compilation.md
@@ -16,7 +16,4 @@ int main () {

 `iostream` 这个头文件大概有 2w 行代码，clice 会先把 `#include <iostream>` 这一行代码构建成 PCH 文件，在完成之后在使用这个 PCH 文件来解析后面的代码。这样的话后续重新解析的代码量就只剩 5 行了，而不是原本的 2w 行，速度会变得非常快。除非你修改了 preamble 部分的代码，导致需要构建新的 preamble。

-
 ## Cancel Compilation
-
-
--- a/docs/zh/design/header-context.md
+++ b/docs/zh/design/header-context.md
@@ -28,7 +28,7 @@ struct Y { ... };

 ```cpp
 // a.h
-struct Y { 
+struct Y {
    X x;
 };

@@ -39,4 +39,4 @@ struct X {};

 `a.h`自身不能被编译，但是嵌入到`b.cpp`中的时候就编译正常了。这种情况下 clangd 会在`a.h`中报错，找不到`X`的定义。显然这是因为它把`a.h`当成一个独立的源文件了。在 libstdc++ 中的代码中就有很多这样的头文件，现在流行的一些 C++ 的 header-only 的库也有些有这样的代码，clangd 目前无法处理它们。

-clice 将会支持**头文件上下文 (header context)**，支持自动和用户主动切换头文件的状态，当然也会支持非自包含的头文件。我们想要实现如下的效果，以最开始那份代码为例。当你从`b.cpp`跳转到`a.h`的时候使用`b.cpp`作为`a.h`的上下文。同理，当你从`c.cpp`跳转到`a.h`的时候则使用`c.cpp`作为`a.h`的上下文。
+clice 将会支持**头文件上下文 (header context)**，支持自动和用户主动切换头文件的状态，当然也会支持非自包含的头文件。我们想要实现如下的效果，以最开始那份代码为例。当你从`b.cpp`跳转到`a.h`的时候使用`b.cpp`作为`a.h`的上下文。同理，当你从`c.cpp`跳转到`a.h`的时候则使用`c.cpp`作为`a.h`的上下文。
--- a/docs/zh/design/index.md
+++ b/docs/zh/design/index.md
@@ -1,2 +1 @@
 # Index
-
--- a/docs/zh/design/template-resolver.md
+++ b/docs/zh/design/template-resolver.md
@@ -28,5 +28,4 @@ void foo(std::vector<std::vector<T>> vec2) {
 2. 它只进行名称查找而不进行模板实例化，就算找到了最后的结果，也没法把它和最初的模板参数映射起来
 3. 不考虑默认模板参数，无法处理由默认模板参数导致的依赖名

-
-尽管我们可以对标准库的类型开洞来提供相关的支持，但是我希望用户的代码能和标准库的代码有相同的地位，那么我们就需要一种通用的算法来处理依赖类型。为了解决这个问题，我编写了一个伪实例化器（pseudo instantiator）。它能在没有具体类型的前提下对依赖类型进行实例化，从而达到化简的目的。比如上面这个例子里面的`std::vector<std::vector<T>>::reference`就能被化简为`std::vector<T>&`，进一步就能为用户提供代码补全选项。
+尽管我们可以对标准库的类型开洞来提供相关的支持，但是我希望用户的代码能和标准库的代码有相同的地位，那么我们就需要一种通用的算法来处理依赖类型。为了解决这个问题，我编写了一个伪实例化器（pseudo instantiator）。它能在没有具体类型的前提下对依赖类型进行实例化，从而达到化简的目的。比如上面这个例子里面的`std::vector<std::vector<T>>::reference`就能被化简为`std::vector<T>&`，进一步就能为用户提供代码补全选项。
--- a/docs/zh/dev/build.md
+++ b/docs/zh/dev/build.md
@@ -1,132 +1,73 @@
 # Build from Source

-## Supported Platforms
+clice 依赖 C++23 特性，需要使用高版本的 C++ 编译器。同时，我们需要链接 LLVM/Clang 库来解析 AST。为了加快构建速度，默认配置会下载我们发布的 [clice-llvm](https://github.com/clice-io/clice-llvm) 预编译包。这要求你的本地环境与预编译环境保持较高的一致性（尤其是开启 Address Sanitizer 或 LTO 时）。

- Windows
- Linux
- MacOS
+为了简化环境设置并保证可复现性，我们**强烈推荐**使用 [pixi](https://pixi.prefix.dev/latest) 来管理开发环境。所有的依赖版本均严格定义在 `pixi.toml` 中。

-## Prerequisite
+如果你不想使用 pixi，请参考下方的 [Manual Build](#manual-build) 章节。

-本小节介绍编译 clice 的前置依赖。
+## Quick Start

-### Toolchain
+请参考 [pixi](https://pixi.prefix.dev/latest/installation) 官方指南安装 pixi。

- clang >= 19
- c++23 compitable standard library
-  - MSVC STL >= 19.44(VS 2022 17.4)
-  - GCC libstdc++ >= 14 
-  - Clang libc++ >= 20
-  
-clice 使用 C++23 作为语言标准 ，请确保有可用的 clang 19 以及以上的编译器，以及兼容 C++23 的标准库。
+我们内置了一系列任务，以下命令可直接完成编译并运行测试：

-> clice 暂时只能使用 clang 编译，在未来我们会改进这一点，使其能使用 gcc 和 msvc 编译。
+```shell
+# configure && build (default RelWithDebInfo)
+pixi run build

-### LLVM Libs
-
- 20.1.5 <= llvm libs < 21
-
-由于 C++ 的语法太过复杂，自己编写一个新的 parser 是不现实的。clice 调用 clang 的 API 来 parse C++ 源文件获取 AST，这意味它需要链接 llvm/clang libs。另外由于 clice 使用了 clang 的私有头文件，这些私有头文件在 llvm 发布的 binary release 中是没有的，所以不能直接使用系统的 llvm package。
-
-如果你能找到系统的 llvm package 对应的 llvm commit，将该 commit 下的如下三个文件
-
- `clang/lib/Sema/CoroutineStmtBuilder.h`
- `clang/lib/Sema/TypeLocBuilder.h` 
- `clang/lib/Sema/TreeTransform.h`
-
-拷贝到 `LLVM_INSTALL_PATH/include/clang/Sema/` 中即可。
-
-除了这种方法以外，还有两种办法获取 clice 所需的 llvm libs：
-
-1. 使用我们提供的预编译版本
-
-```bash
-# .github/workflows/cmake.yml
-
-# Linux precompiled binary require glibc 2.35 (build on ubuntu 22.04)
-$ mkdir -p ./.llvm
-$ curl -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/x86_64-linux-gnu-release.tar.xz" | tar -xJ -C ./.llvm
-
-# MacOS precompiled binary require macos15+
-$ mkdir -p ./.llvm
-$ curl -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/arm64-macosx-apple-release.tar.xz" | tar -xJ -C ./.llvm
-
-# Windows precompiled binary only MD runtime support
-$ curl -O -L "https://github.com/clice-project/llvm-binary/releases/download/20.1.5/x64-windows-msvc-release.7z"
-$ 7z x x64-windows-msvc-release.7z "-o.llvm"
+# unit && integration
+pixi run test
 ```

-> [!IMPORTANT]
->
-> 对于 debug 版本的 llvm libs，构建的时候我们开启了 address sanitizer，而 address sanitizer 依赖于 compiler rt，它对编译器版本十分敏感。所以如果使用 debug 版本，请确保你的 clang 的 compiler rt 版本和我们构建的时候**严格一致**。
-> 
-> - Windows 暂时无 debug 构建的 llvm libs，因为它不支持将 clang 构建为动态库，相关的进展可以在 [这里](https://discourse.llvm.org/t/llvm-is-buildable-as-a-windows-dll/87748) 找到
-> - Linux 使用 clang20
-> - MacOS 使用 homebrew llvm@20，一定不要使用 apple clang
+细粒度任务：上述命令由多个子任务组成，你也可以单独运行它们，并支持通过第一个参数指定构建类型：

-2. 自己从头编译 llvm/clang
-
-这是最推荐的方式，可以保证环境一致性，避免因为 ABI 不一致而导致的崩溃问题。我们提供了一个脚本，用于构建 clice 所需要的 llvm libs：[build-llvm-libs.py](https://github.com/clice-project/clice/blob/main/scripts/build-llvm-libs.py)。
-
-```bash
-$ cd llvm-project
-$ python3 <clice>/scripts/build-llvm-libs.py debug
+```shell
+pixi run cmake-config Debug
+pixi run cmake-build Debug
+pixi run unit-test Debug
+pixi run integration-test Debug
 ```

-也可以参考 llvm 的官方构建教程 [Building LLVM with CMake](https://llvm.org/docs/CMake.html)。
+> [!TIP]
+> 如果你想直接使用 `cmake`, `ninja`, `clang++` 等命令进行开发，请运行 `pixi shell` 进入已配置好环境变量的终端

-## Building
+## Manual Build

-在处理好前置依赖之后，可以开始构建 clice 了，我们提供 cmake/xmake 两种构建方式。
+如果你打算手动构建，请务必先确认你的工具链满足 pixi.toml 中定义的版本要求。
+
+> 兼容性说明：理论上 clice 不依赖特定编译器的扩展，可以使用主流编译器（GCC/Clang/MSVC）编译。但我们仅在 CI 中保证特定版本的 Clang 能通过测试。对于其他编译器或版本，我们提供**尽力而为 (Best Effort)** 的支持。如果遇到问题，欢迎提交 Issue 或 PR

 ### CMake

-下面是 clice 支持的 cmake 参数
-
- `LLVM_INSTALL_PATH` 用于指定 llvm libs 的安装路径
- `CLICE_ENABLE_TEST` 是否构建 clice 的单元测试
-
-例如
-
-```bach
-$ cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DLLVM_INSTALL_PATH="./.llvm" -DCLICE_ENABLE_TEST=ON -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
-$ cmake --build build
-```
-
-### Xmake
-
-使用如下的命令即可构建 clice
-
-```bash
-$ xmake f -c --dev=true --mode=debug --toolchain=clang --llvm="./.llvm" --enable_test=true
-$ xmake build --all
-```
-
-> --llvm 是可选的，如果不指定的话，xmake 会自动下载我们编译好的预编译二进制
-
-## Run Tests
-
-clice 有两种形式的测试，单元测试和集成测试。
-
- 运行单元测试
-
-```bash
-$ ./build/bin/unit_tests --test-dir="./tests/data" --resource-dir="<LLVM_INSTALL_PATH>/lib/clang/20"
-```
-
- 运行集成测试
-
-```bash
-$ pytest -s --log-cli-level=INFO tests/integration --executable=./build/bin/clice --resource-dir="<LLVM_INSTALL_PATH>/lib/clang/20"
-```
-
-> resource-dir 是 clang 的内置头文件文件夹
-
-或者，如果你使用 xmake 作为构建系统，可以直接通过 xmake 运行测试
-
 ```shell
-$ xmake test --verbose
-$ xmake run unit_tests --verbose
-$ xmake test integration_tests/default --verbose
+cmake -B build -G Ninja \
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+    -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain.cmake \
+    -DCLICE_ENABLE_TEST=ON
 ```

+> 注意：`CMAKE_TOOLCHAIN_FILE` 是可选的。如果你使用的工具链与我们完全一致，可以使用预定义的 `cmake/toolchain.cmake`，否则请移除该选项
+
+可选的构建选项：
+
+| 选项                 | 默认值 | 效果                                                                                               |
+| -------------------- | ------ | -------------------------------------------------------------------------------------------------- |
+| LLVM_INSTALL_PATH    | ""     | 使用自定义路径的 LLVM 库来构建 clice                                                               |
+| CLICE_ENABLE_TEST    | OFF    | 是否构建 clice 的单元测试                                                                          |
+| CLICE_USE_LIBCXX     | OFF    | 是否使用 libc++ 来构建 clice（添加 `-std=libc++`），如果开启，请确保 LLVM 库也是使用 libc++ 编译的 |
+| CLICE_CI_ENVIRONMENT | OFF    | 是否打开 `CLICE_CI_ENVIRONMENT` 这个宏，有些测试在 CI 环境才会执行                                 |
+
+## About LLVM
+
+clice 调用 Clang API 来解析 C++ 代码，因此必须链接 LLVM/Clang 库。由于 clice 使用了 Clang 的私有头文件（这些文件通常不包含在发行版中），不能直接使用系统安装的 LLVM 包。
+
+主要有两种方式解决这个依赖问题：
+
+1. 我们在 [clice-llvm](https://github.com/clice-io/clice-llvm/releases) 上会发布使用的 LLVM 版本的预编译二进制，用于 CI 或者 release 构建。在构建时 cmake 默认会从此处下载 LLVM 库然后使用。
+
+> [!IMPORTANT]
+>
+> 对于 debug 版本的 LLVM 库，构建的时候我们开启了 address sanitizer，而 address sanitizer 依赖于 compiler rt，它对编译器版本十分敏感。所以如果使用 debug 版本，请确保你的 clang 的 compiler rt 版本与 `pixi.toml` 中的定义严格一致。
+
+2. 自行构建一套与当前环境一致的 LLVM/Clang。如果默认的预编译二进制文件在你的系统上因 ABI 或库版本不兼容而运行失败，或者你需要一个自定义的 Debug 版本，那么我们推荐你使用此方法从头编译 LLVM 库。我们提供了一个脚本 `scripts/build-llvm.py` 用于构建所需要的 LLVM 库，也可以参考 LLVM 的官方构建教程 [Building LLVM with CMake](https://llvm.org/docs/CMake.html)。
--- a/docs/zh/dev/contribution.md
+++ b/docs/zh/dev/contribution.md
@@ -2,10 +2,11 @@

 我们欢迎任何贡献！

-请参考 [build](./build.md) 来构建 clice
+请参考 [build](./build.md) 来构建 clice，参考 [test and debug](./test-and-debug.md) 来测试和调试 clice。

 ## Code Style

 命名
+
 - 变量名：小写下换线
- 类名，枚举名：大驼峰
+- 类名，枚举名：大驼峰
--- a/docs/zh/dev/extension.md
+++ b/docs/zh/dev/extension.md
@@ -0,0 +1,70 @@
+# Extension
+
+本节汇总各编辑器插件的开发与发布流程。目前包含 VSCode / Neovim / Zed。
+
+## VSCode
+
+VSCode 插件使用 Node/PNPM/VSCE 链路。推荐在 pixi 的 `node` 环境下操作以获得一致的工具链版本。
+
+```shell
+# 准备环境（先安装 pixi）
+pixi shell -e node
+
+# 安装依赖（基于 pnpm-lock）
+pixi run install-vscode
+
+# 打包扩展，产物位于 editors/vscode/*.vsix
+pixi run build-vscode
+```
+
+发布到 VSCode Marketplace（需要 `VSCE_PAT` 环境变量）：
+
+```shell
+pixi run publish-vscode
+```
+
+> [!TIP]
+> 若已编译 clice，本地调试时可在 VSCode 设置中填写 `clice.executable`，使扩展指向你的自定义构建。
+
+开发与调试：
+
+1. `pixi shell -e node`
+2. 在 `editors/vscode` 下运行 `pnpm run watch`（增量构建）
+3. VSCode 中使用”Run Extension/Launch Extension”调试配置，或执行 `code --extensionDevelopmentPath=$(pwd)/editors/vscode`
+
+常用脚本（在 `pixi shell -e node` 下）：
+
+```bash
+pnpm run package # 等价于 pixi run build-vscode
+pnpm run publish # 等价于 pixi run publish-vscode
+```
+
+如果不使用 pixi，请自行准备 node.js >= 20、pnpm，然后在 `editors/vscode` 目录执行：
+
+```bash
+pnpm install
+pnpm run package
+```
+
+## Neovim
+
+Neovim 插件位于 `editors/nvim`，使用 Lua 编写。目前功能仍在演进中。
+
+- 将仓库路径加入 `runtimepath`，例如：`set rtp+=/path/to/clice/editors/nvim`
+- 或在本地创建软链接：`~/.config/nvim/pack/clice/start/clice` -> `<repo>/editors/nvim`
+- 需要 `clice` 可执行文件可在 `$PATH` 中被找到
+
+开发提示：代码量较小，可直接在 Neovim 中加载并通过 `:messages`/LSP 日志观察效果；格式化可使用 `stylua`（仓库中已提供 `stylua.toml`）。
+
+## Zed
+
+Zed 插件位于 `editors/zed`，使用 Rust 和 `zed_extension_api`。
+
+建议的本地验证流程：
+
+```bash
+cd editors/zed
+cargo build --release
+```
+
+随后按 Zed 官方指南加载本地扩展（需安装 Zed CLI），在启动前确保 `clice` 已在 PATH 中。发布时同样遵循 Zed 扩展发布流程。
--- a/docs/zh/dev/test-and-debug.md
+++ b/docs/zh/dev/test-and-debug.md
@@ -0,0 +1,77 @@
+# Test and Debug
+
+## Run Tests
+
+clice 有两种形式的测试，单元测试和集成测试。
+
+- 运行单元测试
+
+```bash
+$ ./build/bin/unit_tests --test-dir="./tests/data"
+```
+
+- 运行集成测试
+
+我们使用 pytest 来运行集成测试，请参考 `pyproject.toml` 安装依赖的 python 库
+
+```bash
+$ pytest -s --log-cli-level=INFO tests/integration --executable=./build/bin/clice
+```
+
+## Debug
+
+如果想在 clice 上附加调试器并进行调试，推荐先单独以 socket 模式启动 clice，然后再将客户端连接到 clice 上
+
+```shell
+$ ./build/bin/clice --mode=socket --port=50051
+```
+
+在服务器启动之后，可以通过以下两种方式启动客户端连接到服务器
+
+- 使用 pytest 运行特定测试进行连接
+
+你可以运行一个单独的集成测试用例来连接正在运行的 clice。这对于复现和调试特定场景非常有用。
+
+```shell
+$ pytest -s --log-cli-level=INFO tests/integration/test_file_operation.py::test_did_open --mode=socket --port=50051
+```
+
+- 使用 vscode 进行实际的测试
+
+你也可以通过配置 clice-vscode 插件来连接正在运行的 clice 服务，从而在实际使用场景中进行调试。
+
+1. 在插件市场下载插件 [clice-vscode](https://marketplace.visualstudio.com/items?itemName=ykiko.clice-vscode)
+
+2. 配置 `settings.json`: 在你的项目根目录下创建 `.vscode/settings.json` 文件，并填入以下内容：
+
+   ```jsonc
+   {
+     // Point this to the clice binary you downloaded.
+     "clice.executable": "/path/to/your/clice/executable",
+
+     // Enable socket mode.
+     "clice.mode": "socket",
+     "clice.port": 50051,
+
+     // Optional: Set this to an empty string to turn off the clangd.
+     "clangd.path": "",
+   }
+   ```
+
+3. 重新加载窗口：修改配置后，在 vscode 中执行 Developer: Reload Window 命令使配置生效。插件会自动连接到正在 50051 端口监听的 clice。
+
+如果你需要修改或调试 clice-vscode 插件本身，可以按以下步骤操作：
+
+1. 克隆并安装依赖：
+
+   ```shell
+   $ git clone https://github.com/clice-io/clice-vscode
+   $ cd clice-vscode
+   $ npm install
+   ```
+
+2. 使用 vscode 打开插件项目：用一个新的 vscode 窗口打开 clice-vscode 文件夹
+
+3. 创建调试配置：在 clice-vscode 项目中，也创建一个 `.vscode/settings.json` 文件，内容与上方相同
+
+4. 按下 `F5` 键。这会启动一个【扩展开发宿主】窗口。这是一个加载了你本地 clice-vscode 插件代码的新的 vscode 窗口，在这个新窗口中打开你的 C++ 项目，它应该会自动连接到 clice
--- a/docs/zh/guide/configuration.md
+++ b/docs/zh/guide/configuration.md
@@ -2,91 +2,51 @@

 这是 `clice.toml` 的文档。

-## Server
+## Project
+
+| 名称                | 类型     | 默认值                        |
+| ------------------- | -------- | ----------------------------- |
+| `project.cache_dir` | `string` | `"${workspace}/.clice/cache"` |
+
+用于储存 PCH 和 PCM 缓存的文件夹。
+<br>
+
+| 名称                | 类型     | 默认值                        |
+| ------------------- | -------- | ----------------------------- |
+| `project.index_dir` | `string` | `"${workspace}/.clice/index"` |
+
+用于储存索引文件的文件夹。
+<br>

 ## Rule

 `[[rules]]` 表示一个对象数组，其中每个对象都拥有下面这些属性
 <br>

-| 名称              | 类型                |
-| ----------------- | ------------------- |
-| `[rules].pattern` | `array` of `string` |
+| 名称               | 类型                |
+| ------------------ | ------------------- |
+| `[rules].patterns` | `array` of `string` |

 用于匹配文件路径的 glob patterns，遵循 LSP 的 [标准](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#documentFilter)。

 - `*`: 匹配路径段中的一个或多个字符。
 - `?`: 匹配路径段中的单个字符。
 - `**`: 匹配任意数量的路径段，包括零个。
- `{}`: 用于分组条件 (例如, `**/*.{ts,js}` 匹配所有 TypeScript 和 JavaScript 文件)。
- `[]`: 声明要匹配的路径段中的字符范围 (例如, `example.[0-9]` 匹配 `example.0`, `example.1` 等)。
- `[!...]`: 排除要匹配的路径段中的字符范围 (例如, `example.[!0-9]` 匹配 `example.a`, `example.b`，但不匹配 `example.0`)。
-<br>
+- `{}`: 用于分组条件 (例如，`**/*.{ts,js}` 匹配所有 TypeScript 和 JavaScript 文件)。
+- `[]`: 声明要匹配的路径段中的字符范围 (例如，`example.[0-9]` 匹配 `example.0`, `example.1` 等)。
+- `[!...]`: 排除要匹配的路径段中的字符范围 (例如，`example.[!0-9]` 匹配 `example.a`, `example.b`，但不匹配 `example.0`)。
+  <br>

-| 名称             | 类型                | 默认值 |
-| ---------------- | ------------------- | ------- |
-| `[rules].append` | `array` of `string` | `[]`    |
+| 名称             | 类型                | 默认值 |
+| ---------------- | ------------------- | ------ |
+| `[rules].append` | `array` of `string` | `[]`   |

 追加到原始命令列表中的命令。例如，`append = ["-std=c++17"]`。
 <br>

-| 名称             | 类型                | 默认值 |
-| ---------------- | ------------------- | ------- |
-| `[rules].remove` | `array` of `string` | `[]`    |
+| 名称             | 类型                | 默认值 |
+| ---------------- | ------------------- | ------ |
+| `[rules].remove` | `array` of `string` | `[]`   |

 从原始命令列表中移除的命令。例如，`remove = ["-std=c++11"]`。
 <br>
-
-| 名称               | 类型     | 默认值  |
-| ------------------ | -------- | -------- |
-| `[rules].readonly` | `string` | `"auto"` |
-
-控制文件是否被视为只读。值可以是 `"auto"`、`"always"` 和 `"never"` 中的一个。
-
- `"auto"`: 在你编辑文件之前，文件被视为只读。
- `"always"`: 始终将文件视为只读。
- `"never"`: 始终将文件视为非只读。
-
-只读意味着文件不可编辑，并且像代码操作 (code actions) 或补全 (completions) 这样的 LSP 请求不会在其上触发。这避免了动态计算，并允许直接加载预先索引的结果，从而提高性能。
-<br>
-
-| 名称             | 类型     | 默认值  |
-| ---------------- | -------- | -------- |
-| `[rules].header` | `string` | `"auto"` |
-
-控制如何处理头文件。值可以是 `"auto"`、`"always"` 和 `"never"` 中的一个。
-
- `"auto"`: 首先尝试推断头文件上下文。如果未找到头文件上下文，文件将被视为普通的源文件。
- `"always"`: 始终将文件视为头文件。如果未找到头文件上下文，将会报告错误。
- `"never"`: 始终将文件视为源文件。
-
-头文件上下文指的是与该头文件相关联的源文件或其他元数据。
-<br>
-
-| 名称               | 类型                | 默认值 |
-| ------------------ | ------------------- | ------- |
-| `[rules].contexts` | `array` of `string` | `[]`    |
-
-为文件指定额外的头文件上下文 (文件路径)。
-
-通常，一旦文件被索引，头文件上下文会自动推断。但是，如果你需要在索引完成前获得即时上下文，可以使用此字段手动提供。
-
-## Cache
-
-| 名称        | 类型     | 默认值                       |
-| ----------- | -------- | ----------------------------- |
-| `cache.dir` | `string` | `"${workspace}/.clice/cache"` |
-
-用于储存 PCH 和 PCM 缓存的文件夹。
-<br>
-
-## Index
-
-| 名称        | 类型     | 默认值                       |
-| ----------- | -------- | ----------------------------- |
-| `index.dir` | `string` | `"${workspace}/.clice/index"` |
-
-用于储存索引文件的文件夹。
-<br>
-
-## Feature
--- a/docs/zh/guide/quick-start.md
+++ b/docs/zh/guide/quick-start.md
@@ -26,7 +26,6 @@ clice 实现了 [Language Server Protocol](https://microsoft.github.io/language-

 自己从源码编译 clice，具体的步骤参考 [build](../dev/build.md)。

-
 ## Project Setup

 为了让 clice 能正确理解你的代码（例如找到头文件的位置），需要为 clice 提供一份 `compile_commands.json` 文件，也就说所谓的 [编译数据库](https://clang.llvm.org/docs/JSONCompilationDatabase.html)。编译数据库中提供了每个源文件的编译选项。
@@ -47,18 +46,81 @@ cmake -B build -DCMAKE_EXPORT_COMPILE_COMMANDS=ON

 ### Bazel

-TODO:
+Bazel 不支持直接生成编译数据库，推荐使用 [bazel-compile-commands-extractor](https://github.com/hedronvision/bazel-compile-commands-extractor)。在安装好之后，你可以这样生成 `compile_commands.json`:
+
+```bash
+bazel run @hedron_compile_commands//:refresh_all
+```

 ### Visual Studio

-TODO:
+Visual Studio（2019 16.1+）可以通过 CMake 集成来生成编译数据库。将项目作为 CMake 项目打开，然后在 `CMakeSettings.json` 中配置：
+
+```json
+{
+  "configurations": [
+    {
+      "name": "x64-Debug",
+      "generator": "Ninja",
+      "buildRoot": "${projectDir}\\build",
+      "cmakeCommandArgs": "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
+    }
+  ]
+}
+```
+
+对于基于 MSBuild 的项目（`.vcxproj`），可以使用 [compiledb-vs](https://github.com/pjbroad/compiledb-vs) 或 [catter](https://github.com/clice-io/catter) 来生成编译数据库。

 ### Makefile

-TODO:
+对于基于 Makefile 的项目，使用 [bear](https://github.com/rizsotto/Bear) 来拦截编译命令：
+
+```bash
+bear -- make
+```
+
+这会在当前目录生成 `compile_commands.json`。注意 `bear` 需要干净的构建来捕获所有命令——如果需要的话，在运行 `bear -- make` 之前先执行 `make clean`。
+
+另外，如果使用 GNU Make，也可以使用 [compiledb](https://github.com/nicktimko/compiledb)：
+
+```bash
+compiledb make
+```
+
+### Meson
+
+Meson 在配置阶段会自动生成编译数据库：
+
+```bash
+meson setup build
+```
+
+`compile_commands.json` 会生成在 `build` 目录下。

 ### Xmake

+用下列任意方法生成编译数据库。
+
+#### 命令行手动生成
+
+在命令行中执行以下命令：
+
+```bash
+xmake project -k compile_commands --lsp=clangd build
+```
+
+> 通过这种方法生成的编译数据库无法自动更新，需要在项目编译配置更改时手动重新生成。
+
+#### VSCode 扩展
+
+Xmake 提供的官方 VSCode 扩展会在 `xmake.lua` 更新时自动生成编译数据库。然而默认情况下，它将编译数据库生成到了 `.vscode` 文件夹。在 `settings.json` 中添加以下配置：
+
+```json
+"xmake.compileCommandsDirectory": "build"
+```
+
+以将编译数据库的生成目录调整到 `build`，供 clice 使用。
+
 ### Others

-对于任意其它的构建系统，可以尝试使用 [bear](https://github.com/rizsotto/Bear) 或者 [scan-build](https://github.com/rizsotto/scan-build) 来拦截编译命令并获取到编译数据库（不保证成功）。我们计划在未来编写一个**新的工具**，通过假编译器的方式来实现编译命令的捕获。
+对于任意其它的构建系统，可以使用 [catter](https://github.com/clice-io/catter) 来生成编译数据库。它通过伪装编译器的方式来捕获编译命令，能够可靠地与任何调用编译器可执行文件的构建系统配合工作。
--- a/docs/zh/guide/what-is-clice.md
+++ b/docs/zh/guide/what-is-clice.md
@@ -20,4 +20,4 @@ clice 是一个全新的 C++ 的语言服务器，旨在解决现存 C++ 语言

 既然如此，那么像为 clangd [初步支持 C++20 module](https://github.com/llvm/llvm-project/pull/66462) 这样的大型 PR 被拖了将近一年也就不奇怪了。意识到这个现状之后，我萌生了自己编写一个语言服务器的想法。我估计了一下项目大小，去除测试代码，大概 2w 行就能完成，是一个人花一段时间能完成的工作量，而且也有先例，例如 ccls 和 rust analyzer。另外一点就是 clangd 的代码已经上了年代了，尽管有非常多的注释，但是相关的逻辑仍然很绕，进行大范围修改所花费的时间可能还不如重写来得快。

-于是说干就干，我对 clangd 的几百个 issue 进行了分类，看看有没有一些问题是因为 clangd 一开始的架构设计错误而导致很难解决，然后被搁置的。如果有的话，是否能在重新设计的时候就考虑这个问题来解决呢？我发现，确实有一些！于是接下来的时间里，我花了大概两个月的时间来学习研究 clang 里面相关的机制，摸索相关问题的解决方法，探索原型实现，在确定相关的问题基本都可以解决之后，正式开始了 clice 的开发。
+于是说干就干，我对 clangd 的几百个 issue 进行了分类，看看有没有一些问题是因为 clangd 一开始的架构设计错误而导致很难解决，然后被搁置的。如果有的话，是否能在重新设计的时候就考虑这个问题来解决呢？我发现，确实有一些！于是接下来的时间里，我花了大概两个月的时间来学习研究 clang 里面相关的机制，摸索相关问题的解决方法，探索原型实现，在确定相关的问题基本都可以解决之后，正式开始了 clice 的开发。
--- a/docs/zh/index.md
+++ b/docs/zh/index.md
@@ -16,8 +16,8 @@ hero:
      text: 参与贡献
      link: /zh/dev/contribution
  image:
-      src: /image.png
-      alt: clice
+    src: /image.png
+    alt: clice

 features:
  - icon: T
@@ -32,4 +32,4 @@ features:
  - icon: I
    title: 内存占用更低，速度更快
    details: 优秀的异步任务调度，支持编译任务取消，缓存必要的信息，避免无意义的 CPU 浪费
---
+---
--- a/editors/nvim/README.md
+++ b/editors/nvim/README.md
@@ -0,0 +1,3 @@
+# clice-nvim
+
+Provide extended functionality for [clice](https://github.com/clice-io/clice)
--- a/editors/nvim/doc/clice.lua
+++ b/editors/nvim/doc/clice.lua
@@ -0,0 +1,32 @@
+-- Should be placed under config_dir/lsp/
+-- Lsp configuration for nvim >= 0.11
+
+local clice = {
+    filetypes = { 'c', 'cpp' },
+
+    root_markers = {
+        '.git/',
+        'clice.toml',
+        '.clang-tidy',
+        '.clang-format',
+        'compile_commands.json',
+        'compile_flags.txt',
+        'configure.ac', -- AutoTools
+    },
+
+    capabilities = {
+        textDocument = {
+            completion = {
+                editsNearCursor = true,
+            },
+        },
+        offsetEncoding = { 'utf-8' },
+    },
+
+    cmd = {
+        'clice',
+        '--mode=pipe',
+    },
+}
+
+return clice
--- a/editors/nvim/lua/clice-nvim/init.lua
+++ b/editors/nvim/lua/clice-nvim/init.lua
--- a/editors/nvim/plugin/clice-nvim.lua
+++ b/editors/nvim/plugin/clice-nvim.lua
@@ -0,0 +1,3 @@
+local augroup = vim.api.nvim_create_augroup('LspClice', { clear = true })
+
+-- TODO: CallHierarchy, TypeHierarchy, LspDump?, ShowHeaderContext?
--- a/editors/nvim/stylua.toml
+++ b/editors/nvim/stylua.toml
@@ -0,0 +1,6 @@
+column_width = 160
+line_endings = "Unix"
+indent_type = "Spaces"
+indent_width = 4
+quote_style = "AutoPreferSingle"
+call_parentheses = "None"
--- a/editors/vscode/.vscode-test.mjs
+++ b/editors/vscode/.vscode-test.mjs
@@ -0,0 +1,5 @@
+import { defineConfig } from '@vscode/test-cli';
+
+export default defineConfig({
+	files: 'out/test/**/*.test.js',
+});
--- a/editors/vscode/.vscodeignore
+++ b/editors/vscode/.vscodeignore
@@ -0,0 +1,15 @@
+.github/
+.vscode/**
+.vscode-test/**
+out/**
+node_modules/**
+src/**
+.gitignore
+.yarnrc
+webpack.config.js
+vsc-extension-quickstart.md
+**/tsconfig.json
+**/.eslintrc.json
+**/*.map
+**/*.ts
+**/.vscode-test.*
--- a/editors/vscode/LICENSE
+++ b/editors/vscode/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      "Contribution" shall mean any work of authorship, including
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+          notices within Derivative Works that You distribute, alongside
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
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+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
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+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
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+   END OF TERMS AND CONDITIONS
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+
+      To apply the Apache License to your work, attach the following
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+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
--- a/editors/vscode/README.md
+++ b/editors/vscode/README.md
@@ -0,0 +1,19 @@
+# vscode-clice
+
+This is the vscode extension for [clice](https://github.com/clice-project/clice).
+
+## develop
+
+- install dependencies
+
+```shell
+git clone https://github.com/clice-io/clice.git
+cd clice/editors/vscode
+npm install
+```
+
+- package
+
+```shell
+npm run package
+```
--- a/editors/vscode/clice.png
+++ b/editors/vscode/clice.png
--- a/editors/vscode/package.json
+++ b/editors/vscode/package.json
@@ -0,0 +1,182 @@
+{
+  "name": "clice-vscode",
+  "displayName": "clice",
+  "description": "VSCode extension for clice",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/clice-project/clice-vscode"
+  },
+  "version": "0.1.4",
+  "publisher": "ykiko",
+  "icon": "clice.png",
+  "engines": {
+    "vscode": "^1.80.0"
+  },
+  "categories": [
+    "Programming Languages",
+    "Linters",
+    "Formatters"
+  ],
+  "keywords": [
+    "C",
+    "C++",
+    "cuda",
+    "clang"
+  ],
+  "activationEvents": [
+    "onLanguage:c",
+    "onLanguage:cpp",
+    "onLanguage:cuda-cpp"
+  ],
+  "contributes": {
+    "configuration": {
+      "type": "object",
+      "title": "C/C++ Language Client",
+      "properties": {
+        "clice-client.trace.server": {
+          "default": "verbose"
+        },
+        "clice.executable": {
+          "type": "string",
+          "default": "",
+          "description": "The path of clice executable."
+        },
+        "clice.mode": {
+          "type": "string",
+          "default": "pipe",
+          "enum": [
+            "pipe",
+            "socket"
+          ],
+          "description": "How to communicate with clice. pipe or socket. For daily use please use pipe."
+        },
+        "clice.host": {
+          "type": "string",
+          "default": "127.0.0.1",
+          "description": "The host to connect to (default: 127.0.0.1)"
+        },
+        "clice.port": {
+          "type": "number",
+          "default": 50051,
+          "description": "The port to connect to"
+        }
+      }
+    },
+    "commands": [
+      {
+        "command": "clice.restart",
+        "title": "Clice: Restart Language Server"
+      }
+    ],
+    "semanticTokenTypes": [
+      {
+        "id": "character",
+        "description": "C/C++ character literal (e.g., 'a')",
+        "superType": "string"
+      },
+      {
+        "id": "directive",
+        "description": "C/C++ preprocessor directive (e.g., #include)",
+        "superType": "keyword"
+      },
+      {
+        "id": "header",
+        "description": "C/C++ header name (e.g., <iostream>)",
+        "superType": "string"
+      },
+      {
+        "id": "module",
+        "description": "C++20 module name",
+        "superType": "namespace"
+      },
+      {
+        "id": "macroParameter",
+        "description": "C/C++ macro parameter",
+        "superType": "parameter"
+      },
+      {
+        "id": "union",
+        "description": "C/C++ union type",
+        "superType": "struct"
+      },
+      {
+        "id": "field",
+        "description": "C/C++ field (member variable)",
+        "superType": "variable"
+      },
+      {
+        "id": "label",
+        "description": "C/C++ label (for goto)",
+        "superType": "variable"
+      },
+      {
+        "id": "concept",
+        "description": "C++20 concept",
+        "superType": "type"
+      },
+      {
+        "id": "attribute",
+        "description": "GNU/MSVC/C++11/C23 attribute",
+        "superType": "macro"
+      },
+      {
+        "id": "paren",
+        "description": "Parentheses `()`",
+        "superType": "operator"
+      },
+      {
+        "id": "bracket",
+        "description": "Brackets `[]`",
+        "superType": "operator"
+      },
+      {
+        "id": "brace",
+        "description": "Braces `{}`",
+        "superType": "operator"
+      },
+      {
+        "id": "angle",
+        "description": "Angle brackets `<>`",
+        "superType": "operator"
+      }
+    ]
+  },
+  "main": "./dist/extension.js",
+  "scripts": {
+    "compile": "webpack",
+    "watch": "webpack --watch",
+    "vscode:prepublish": "webpack --mode production --devtool hidden-source-map",
+    "package": "vsce package --no-dependencies --baseImagesUrl https://raw.githubusercontent.com/clice-io/clice/main/",
+    "publish": "vsce publish --no-dependencies --baseImagesUrl https://raw.githubusercontent.com/clice-io/clice/main/",
+    "pretest": "pnpm run compile",
+    "test": "vscode-test",
+    "release:patch": "pnpm version patch -m \"release: v%s\" && git push --follow-tags",
+    "release:minor": "pnpm version minor -m \"release: v%s\" && git push --follow-tags"
+  },
+  "devDependencies": {
+    "@types/decompress": "^4.2.7",
+    "@types/mocha": "^10.0.10",
+    "@types/node": "~25.0.3",
+    "@types/vscode": "^1.80.0",
+    "@vscode/test-cli": "^0.0.12",
+    "@vscode/test-electron": "^2.5.2",
+    "@vscode/vsce": "^3.7.1",
+    "ts-loader": "^9.5.4",
+    "typescript": "~5.5.4",
+    "webpack": "^5.104.1",
+    "webpack-cli": "^6.0.1"
+  },
+  "dependencies": {
+    "decompress": "^4.2.1",
+    "vscode-languageclient": "^9.0.1"
+  },
+  "overrides": {
+    "glob": "^11.1.0"
+  },
+  "pnpm": {
+    "onlyBuiltDependencies": [
+      "@vscode/vsce-sign",
+      "keytar"
+    ]
+  }
+}
--- a/editors/vscode/pnpm-lock.yaml
+++ b/editors/vscode/pnpm-lock.yaml
--- a/editors/vscode/src/download.ts
+++ b/editors/vscode/src/download.ts
@@ -0,0 +1,247 @@
+import * as vscode from "vscode";
+import * as fs from "fs";
+import * as path from "path";
+import * as https from "https";
+import * as os from "os";
+// @ts-ignore
+import decompress = require("decompress");
+
+interface GitHubRelease {
+    tag_name: string;
+    assets: {
+        name: string;
+        browser_download_url: string;
+    }[];
+}
+
+export async function ensureServerBinary(
+    context: vscode.ExtensionContext,
+    channel: vscode.OutputChannel,
+): Promise<string | undefined> {
+    const storagePath = context.globalStorageUri.fsPath;
+    const platform = os.platform();
+    const arch = os.arch();
+
+    channel.appendLine(`[Download] Initializing clice downloader...`);
+    channel.appendLine(`[Download] Platform: ${platform}, Arch: ${arch}, Storage: ${storagePath}`);
+
+    let platformKeyword = "";
+    let archKeyword = "";
+    let binaryName = "clice";
+
+    if (platform === "win32") {
+        platformKeyword = "windows";
+        archKeyword = "x64";
+        binaryName = "clice.exe";
+    } else if (platform === "darwin") {
+        platformKeyword = "macos";
+        archKeyword = arch;
+    } else if (platform === "linux") {
+        platformKeyword = "linux";
+        archKeyword = arch === "x64" ? "x86_64" : arch;
+    } else {
+        const msg = `Unsupported platform: ${platform}`;
+        channel.appendLine(`[Download] Error: ${msg}`);
+        vscode.window.showErrorMessage(msg);
+        return undefined;
+    }
+
+    const executablePath = path.join(storagePath, "bin", binaryName);
+
+    if (fs.existsSync(executablePath)) {
+        channel.appendLine(`[Download] Found existing binary at: ${executablePath}`);
+        // TODO: check tag update
+        return executablePath;
+    }
+
+    if (!fs.existsSync(storagePath)) {
+        channel.appendLine(`[Download] Creating storage directory: ${storagePath}`);
+        fs.mkdirSync(storagePath, { recursive: true });
+    }
+
+    const statusItem = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Right, 100);
+
+    try {
+        statusItem.text = "$(sync~spin) Checking clice updates...";
+        statusItem.show();
+
+        channel.appendLine(`[Download] Fetching latest release from GitHub...`);
+        const release = await fetchReleaseInfo(channel);
+        channel.appendLine(`[Download] Latest tag: ${release.tag_name}`);
+
+        const asset = release.assets.find((a) => {
+            const name = a.name.toLowerCase();
+            return (
+                name.includes(platformKeyword) &&
+                name.includes(archKeyword) &&
+                !name.includes("symbol")
+            );
+        });
+
+        if (!asset) {
+            throw new Error(
+                `No compatible asset found for ${platform}-${archKeyword} in release ${release.tag_name}`,
+            );
+        }
+
+        channel.appendLine(`[Download] Found asset: ${asset.name}`);
+        channel.appendLine(`[Download] Download URL: ${asset.browser_download_url}`);
+
+        const tempArchiveName = asset.name;
+        const tempArchivePath = path.join(storagePath, tempArchiveName);
+
+        statusItem.text = `$(cloud-download) Downloading clice...`;
+        await downloadFile(asset.browser_download_url, tempArchivePath, channel);
+
+        statusItem.text = `$(file-zip) Extracting...`;
+        channel.appendLine(`[Download] Extracting ${tempArchivePath} to ${storagePath}...`);
+
+        await decompress(tempArchivePath, storagePath);
+        channel.appendLine(`[Download] Extraction complete.`);
+
+        fs.unlinkSync(tempArchivePath);
+
+        if (!fs.existsSync(executablePath)) {
+            throw new Error(`Executable not found at ${executablePath} after extraction.`);
+        }
+
+        if (platform !== "win32") {
+            channel.appendLine(`[Download] Setting executable permissions (chmod 755)...`);
+            fs.chmodSync(executablePath, "755");
+        }
+
+        channel.appendLine(`[Download] Setup successful. Binary ready at: ${executablePath}`);
+        vscode.window.showInformationMessage(
+            `Clice language server updated to ${release.tag_name}`,
+        );
+        return executablePath;
+    } catch (error) {
+        channel.appendLine(`[Download] CRITICAL ERROR during setup:`);
+        if (error instanceof Error) {
+            channel.appendLine(`[Download] Message: ${error.message}`);
+            if (error.stack) {
+                channel.appendLine(`[Download] Stack: ${error.stack}`);
+            }
+        } else {
+            channel.appendLine(`[Download] Unknown error: ${JSON.stringify(error)}`);
+        }
+
+        vscode.window
+            .showErrorMessage(
+                `Failed to download clice server. Check "clice" output channel for details.`,
+                "Open Output",
+            )
+            .then((selection) => {
+                if (selection === "Open Output") {
+                    channel.show();
+                }
+            });
+
+        return undefined;
+    } finally {
+        statusItem.dispose();
+    }
+}
+
+function downloadFile(
+    url: string,
+    destPath: string,
+    channel: vscode.OutputChannel,
+    maxRedirects = 5,
+): Promise<void> {
+    return new Promise((resolve, reject) => {
+        if (maxRedirects <= 0) {
+            reject(new Error("Too many redirects"));
+            return;
+        }
+
+        const file = fs.createWriteStream(destPath);
+        channel.appendLine(`[Download] Start downloading to ${destPath}`);
+
+        https
+            .get(url, { headers: { "User-Agent": "VSCode-Extension" } }, (response) => {
+                if (response.statusCode === 302 || response.statusCode === 301) {
+                    channel.appendLine(`[Download] Redirecting to ${response.headers.location}`);
+                    file.close();
+                    downloadFile(response.headers.location!, destPath, channel, maxRedirects - 1)
+                        .then(resolve)
+                        .catch(reject);
+                    return;
+                }
+                if (response.statusCode !== 200) {
+                    reject(new Error(`Download failed with status code ${response.statusCode}`));
+                    return;
+                }
+
+                response.pipe(file);
+                file.on("finish", () => {
+                    file.close();
+                    channel.appendLine(`[Download] Download finished.`);
+                    resolve();
+                });
+            })
+            .on("error", (err) => {
+                file.close();
+                fs.unlink(destPath, () => {});
+                reject(err);
+            });
+    });
+}
+
+async function fetchReleaseInfo(channel: vscode.OutputChannel): Promise<GitHubRelease> {
+    try {
+        channel.appendLine("[Download] Attempting to fetch latest stable release...");
+        const release = await fetchJson<GitHubRelease>("/repos/clice-io/clice/releases/latest");
+        channel.appendLine(`[Download] Found stable release: ${release.tag_name}`);
+        return release;
+    } catch (error: any) {
+        if (error.message && error.message.includes("404")) {
+            channel.appendLine(
+                "[Download] Latest stable release not found (404). Checking for pre-releases...",
+            );
+
+            const releases = await fetchJson<GitHubRelease[]>(
+                "/repos/clice-io/clice/releases?per_page=1",
+            );
+
+            if (Array.isArray(releases) && releases.length > 0) {
+                const latestPre = releases[0];
+                channel.appendLine(`[Download] Found pre-release: ${latestPre.tag_name}`);
+                return latestPre;
+            } else {
+                throw new Error("No releases found in repository.");
+            }
+        }
+        throw error;
+    }
+}
+
+function fetchJson<T>(apiPath: string): Promise<T> {
+    return new Promise((resolve, reject) => {
+        const options = {
+            hostname: "api.github.com",
+            path: apiPath,
+            headers: { "User-Agent": "VSCode-Extension" },
+        };
+
+        https
+            .get(options, (res) => {
+                let data = "";
+                if (res.statusCode && (res.statusCode < 200 || res.statusCode >= 300)) {
+                    res.resume();
+                    reject(new Error(`GitHub API returned ${res.statusCode} for ${apiPath}`));
+                    return;
+                }
+
+                res.on("data", (chunk) => (data += chunk));
+                res.on("end", () => {
+                    try {
+                        resolve(JSON.parse(data));
+                    } catch (e) {
+                        reject(new Error(`Failed to parse GitHub API response: ${e}`));
+                    }
+                });
+            })
+            .on("error", reject);
+    });
+}
--- a/editors/vscode/src/extension.ts
+++ b/editors/vscode/src/extension.ts
@@ -0,0 +1,95 @@
+import * as net from "net";
+import * as vscode from "vscode";
+import { workspace, window, ExtensionContext } from "vscode";
+import {
+    LanguageClient,
+    LanguageClientOptions,
+    ServerOptions,
+    StreamInfo,
+} from "vscode-languageclient/node";
+import { getSetting } from "./setting";
+import { ensureServerBinary } from "./download";
+
+let client: LanguageClient;
+
+export async function registerCommands(client: LanguageClient, context: ExtensionContext) {
+    context.subscriptions.push(
+        vscode.commands.registerCommand("clice.restart", async () => {
+            await client.restart();
+        }),
+    );
+}
+
+export async function activate(context: ExtensionContext) {
+    console.log('Congratulations, your extension "clice" is now active!');
+
+    const channel = window.createOutputChannel("clice");
+    const verboseChannel = window.createOutputChannel("clice-verbose");
+
+    const setting = getSetting();
+    if (!setting) {
+        return;
+    }
+
+    let executable = setting.executable;
+    let serverOptions: ServerOptions | (() => Promise<StreamInfo>);
+
+    if (setting.mode === "pipe") {
+        if (!executable || executable === "") {
+            const downloadedPath = await ensureServerBinary(context, channel);
+            if (downloadedPath) {
+                executable = downloadedPath;
+            } else {
+                window.showErrorMessage("Could not find or download clice executable.");
+                return;
+            }
+        }
+
+        let args = ["--mode=pipe"];
+        serverOptions = {
+            run: { command: executable, args: args },
+            debug: { command: executable, args: args },
+        };
+    } else if (setting.mode === "socket") {
+        serverOptions = (): Promise<StreamInfo> => {
+            return new Promise((resolve, reject) => {
+                const client = new net.Socket();
+                client.connect(setting.port, setting.host, () => {
+                    resolve({
+                        reader: client,
+                        writer: client,
+                    });
+                });
+                client.on("error", (error) => {
+                    reject(error);
+                });
+            });
+        };
+    } else {
+        vscode.window.showErrorMessage("Invalid mode, please set the mode to 'pipe' or 'socket'.");
+        return;
+    }
+
+    const clientOptions: LanguageClientOptions = {
+        documentSelector: [{ scheme: "file", language: "cpp" }],
+        outputChannel: channel,
+        traceOutputChannel: verboseChannel,
+        synchronize: {
+            fileEvents: workspace.createFileSystemWatcher("**/.clientrc"),
+        },
+    };
+
+    client = new LanguageClient("clice", "clice", serverOptions, clientOptions);
+
+    await registerCommands(client, context);
+
+    await client.start();
+}
+
+export function deactivate(): Thenable<void> | undefined {
+    if (!client) {
+        return undefined;
+    }
+    let ret = client.stop();
+    return ret;
+}
--- a/editors/vscode/src/feature/header.ts
+++ b/editors/vscode/src/feature/header.ts
@@ -0,0 +1,72 @@
+import * as vscode from "vscode";
+import { DocumentUri } from "vscode-languageclient/node";
+
+let provider: HeaderContextProvider | undefined = undefined;
+
+export type HeaderContext = {
+    file: string;
+    index: number;
+    include: number;
+};
+
+export type HeaderContextSwitchParams = {
+    header: DocumentUri;
+    context: HeaderContext;
+};
+
+export type IncludeLocation = {
+    line: number;
+    filename: string;
+};
+
+export class TreeItem extends vscode.TreeItem {
+    children: Array<TreeItem> = [];
+    context: HeaderContext | undefined = undefined;
+}
+
+export class HeaderContextProvider implements vscode.TreeDataProvider<TreeItem> {
+    private _onDidChangeTreeData: vscode.EventEmitter<TreeItem | undefined | void> =
+        new vscode.EventEmitter<TreeItem | undefined | void>();
+    readonly onDidChangeTreeData: vscode.Event<TreeItem | undefined | void> =
+        this._onDidChangeTreeData.event;
+
+    header: string = "";
+    items: Array<TreeItem> = [];
+
+    update(contexts: Array<Array<HeaderContext>>) {
+        /// Create groups
+        this.items = contexts.map((contexts) => {
+            let item = new TreeItem("", vscode.TreeItemCollapsibleState.Expanded);
+            item.children = contexts.map((context) => {
+                const uri = vscode.Uri.file(context.file);
+                let item = new TreeItem(uri, vscode.TreeItemCollapsibleState.None);
+                item.context = context;
+                item.iconPath = vscode.ThemeIcon.File;
+                item.contextValue = "header-context";
+                return item;
+            });
+            return item;
+        });
+
+        this.refresh();
+    }
+
+    refresh(): void {
+        this._onDidChangeTreeData.fire();
+    }
+
+    getTreeItem(element: TreeItem) {
+        return element;
+    }
+
+    getChildren(element?: TreeItem) {
+        return element ? element.children : this.items;
+    }
+}
+
+export function registerHeaderContextView() {
+    provider = new HeaderContextProvider();
+    let treeView = vscode.window.createTreeView("header-contexts", {
+        treeDataProvider: provider,
+    });
+}
--- a/editors/vscode/src/feature/highlight.ts
+++ b/editors/vscode/src/feature/highlight.ts
@@ -0,0 +1,63 @@
+import * as vscode from "vscode";
+
+const rainbowColors = ["#56B6C2", "#61AFEF", "#C678DD", "#E06C75", "#98C379", "#D19A66", "#E5C07B"];
+
+const textEditorDecorationTypes = rainbowColors.map((color) => {
+    return vscode.window.createTextEditorDecorationType({
+        color: color,
+    });
+});
+
+export function highlightDocument(
+    document: vscode.TextDocument,
+    legend: vscode.SemanticTokensLegend,
+    semanticTokens: vscode.SemanticTokens,
+) {
+    const editor = vscode.window.activeTextEditor;
+    if (!editor || editor.document !== document) {
+        return;
+    }
+    const angleIndex = legend?.tokenTypes.indexOf("angle");
+    const leftIndex = legend?.tokenModifiers.indexOf("left");
+    const rightIndex = legend?.tokenModifiers.indexOf("right");
+    if (leftIndex === undefined || rightIndex === undefined || angleIndex === undefined) {
+        return;
+    }
+
+    const decorations = new Map<number, vscode.Range[]>();
+    let level = 0;
+
+    let lastLine = 0;
+    let lastStart = 0;
+
+    // [line, startCharacter, length, tokenType, tokenModifiers]
+    for (let i = 0; i < semanticTokens.data.length; i += 5) {
+        const [lineDelta, startDelta, length, tokenType, tokenModifiers] =
+            semanticTokens.data.slice(i, i + 5);
+
+        lastLine += lineDelta;
+        lastStart = lineDelta === 0 ? lastStart + startDelta : startDelta;
+
+        const range = new vscode.Range(lastLine, lastStart, lastLine, lastStart + length);
+
+        if (tokenType === angleIndex) {
+            if (tokenModifiers & (1 << rightIndex)) {
+                level -= 1;
+            }
+
+            if (decorations.has(level % rainbowColors.length)) {
+                decorations.get(level % rainbowColors.length)?.push(range);
+            } else {
+                decorations.set(level % rainbowColors.length, [range]);
+            }
+
+            if (tokenModifiers & (1 << leftIndex)) {
+                level += 1;
+            }
+        }
+    }
+
+    for (const [level, ranges] of decorations) {
+        editor.setDecorations(textEditorDecorationTypes[level], ranges);
+    }
+}
--- a/editors/vscode/src/setting.ts
+++ b/editors/vscode/src/setting.ts
@@ -0,0 +1,34 @@
+import * as vscode from "vscode";
+
+interface Setting {
+    executable: string | undefined;
+    mode: string;
+    host: string;
+    port: number;
+}
+
+export function getSetting(): Setting | undefined {
+    const setting = vscode.workspace.getConfiguration("clice");
+    const executable = setting.get<string>("executable");
+    const mode = process.env.CLICE_MODE || setting.get<string>("mode");
+
+    if (mode !== "pipe" && mode !== "socket") {
+        vscode.window.showErrorMessage(`Unexpected mode: ${mode}`);
+        return undefined;
+    }
+
+    const host = setting.get<string>("host")!;
+    const port = setting.get<number>("port")!;
+
+    if (mode === "socket" && (!host || !port)) {
+        vscode.window.showErrorMessage("Socket mode requires both host and port to be configured.");
+        return undefined;
+    }
+
+    return {
+        executable,
+        mode,
+        host,
+        port,
+    };
+}
--- a/editors/vscode/src/test/extension.test.ts
+++ b/editors/vscode/src/test/extension.test.ts
@@ -0,0 +1,15 @@
+import * as assert from "assert";
+
+// You can import and use all API from the 'vscode' module
+// as well as import your extension to test it
+import * as vscode from "vscode";
+// import * as myExtension from '../../extension';
+
+suite("Extension Test Suite", () => {
+    vscode.window.showInformationMessage("Start all tests.");
+
+    test("Sample test", () => {
+        assert.strictEqual(-1, [1, 2, 3].indexOf(5));
+        assert.strictEqual(-1, [1, 2, 3].indexOf(0));
+    });
+});
--- a/editors/vscode/tsconfig.json
+++ b/editors/vscode/tsconfig.json
@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "module": "Node16",
+    "target": "ES2022",
+    "lib": ["ES2022"],
+    "sourceMap": true,
+    "rootDir": "src",
+    "strict": true /* enable all strict type-checking options */
+    /* Additional Checks */
+    // "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
+    // "noUnusedParameters": true,  /* Report errors on unused parameters. */
+  }
+}
--- a/editors/vscode/webpack.config.js
+++ b/editors/vscode/webpack.config.js
@@ -0,0 +1,48 @@
+//@ts-check
+
+"use strict";
+
+const path = require("path");
+
+//@ts-check
+/** @typedef {import('webpack').Configuration} WebpackConfig **/
+
+/** @type WebpackConfig */
+const extensionConfig = {
+    target: "node", // VS Code extensions run in a Node.js-context 📖 -> https://webpack.js.org/configuration/node/
+    mode: "none", // this leaves the source code as close as possible to the original (when packaging we set this to 'production')
+
+    entry: "./src/extension.ts", // the entry point of this extension, 📖 -> https://webpack.js.org/configuration/entry-context/
+    output: {
+        // the bundle is stored in the 'dist' folder (check package.json), 📖 -> https://webpack.js.org/configuration/output/
+        path: path.resolve(__dirname, "dist"),
+        filename: "extension.js",
+        libraryTarget: "commonjs2",
+    },
+    externals: {
+        vscode: "commonjs vscode", // the vscode-module is created on-the-fly and must be excluded. Add other modules that cannot be webpack'ed, 📖 -> https://webpack.js.org/configuration/externals/
+        // modules added here also need to be added in the .vscodeignore file
+    },
+    resolve: {
+        // support reading TypeScript and JavaScript files, 📖 -> https://github.com/TypeStrong/ts-loader
+        extensions: [".ts", ".js"],
+    },
+    module: {
+        rules: [
+            {
+                test: /\.ts$/,
+                exclude: /node_modules/,
+                use: [
+                    {
+                        loader: "ts-loader",
+                    },
+                ],
+            },
+        ],
+    },
+    devtool: "nosources-source-map",
+    infrastructureLogging: {
+        level: "log", // enables logging required for problem matchers
+    },
+};
+module.exports = [extensionConfig];
--- a/editors/zed/.gitignore
+++ b/editors/zed/.gitignore
@@ -0,0 +1 @@
+/target
--- a/editors/zed/Cargo.lock
+++ b/editors/zed/Cargo.lock
@@ -0,0 +1,329 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "anyhow"
+version = "1.0.99"
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+
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+
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+
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+
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+
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+]
+
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+]
+
+[[package]]
+name = "wit-component"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "421c0c848a0660a8c22e2fd217929a0191f14476b68962afd2af89fd22e39825"
+dependencies = [
+ "anyhow",
+ "bitflags",
+ "indexmap",
+ "log",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "wasm-encoder",
+ "wasm-metadata",
+ "wasmparser",
+ "wit-parser",
+]
+
+[[package]]
+name = "wit-parser"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "196d3ecfc4b759a8573bf86a9b3f8996b304b3732e4c7de81655f875f6efdca6"
+dependencies = [
+ "anyhow",
+ "id-arena",
+ "indexmap",
+ "log",
+ "semver",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "unicode-xid",
+ "wasmparser",
+]
+
+[[package]]
+name = "zed_clice"
+version = "0.1.0"
+dependencies = [
+ "zed_extension_api",
+]
+
+[[package]]
+name = "zed_extension_api"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "594fd10dd0f2f853eb243e2425e7c95938cef49adb81d9602921d002c5e6d9d9"
+dependencies = [
+ "serde",
+ "serde_json",
+ "wit-bindgen",
+]
--- a/editors/zed/Cargo.toml
+++ b/editors/zed/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "zed_clice"
+version = "0.1.0"
+edition = "2021"
+license = "MIT"
+publish = false
+
+[lib]
+crate-type = ["cdylib"]
+path = "src/clice.rs"
+
+[dependencies]
+zed_extension_api = "0.1.0"
--- a/editors/zed/LICENSE
+++ b/editors/zed/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 clice-project
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/editors/zed/README.md
+++ b/editors/zed/README.md
@@ -0,0 +1,5 @@
+# clice-zed
+
+This is the zed extension for [clice](https://github.com/clice-io/clice).
+
+Currently, `clice-zed` uses `clice` in environment variables. Support for configuring the clice path in the configuration file may be added in the future.
--- a/editors/zed/extension.toml
+++ b/editors/zed/extension.toml
@@ -0,0 +1,11 @@
+id = "clice"
+name = "clice"
+version = "0.1.0"
+schema_version = 1
+authors = ["clice-io"]
+description = "C++ support"
+repository = "https://github.com/clice-io/clice"
+
+[language_servers.clice]
+name = "clice"
+language = "C++"
--- a/editors/zed/src/clice.rs
+++ b/editors/zed/src/clice.rs
@@ -0,0 +1,44 @@
+use zed_extension_api::{self as zed, LanguageServerId, Result, Worktree};
+
+struct CliceExtension;
+
+struct CliceBinary {
+    path: String,
+}
+
+impl CliceExtension {
+    fn find_clice_binary(&self, worktree: &Worktree) -> Result<CliceBinary> {
+        if let Some(path_str) = worktree.which("clice") {
+            Ok(CliceBinary { path: path_str })
+        } else {
+            Err(
+                "`clice` not found in your PATH. Please install it and add it to your system's PATH environment variable.".to_string()
+            )
+        }
+    }
+}
+
+impl zed::Extension for CliceExtension {
+    fn new() -> Self {
+        Self
+    }
+
+    // Currently, we only search for the 'clice' binary in the system's PATH.
+    fn language_server_command(
+        &mut self,
+        _language_server_id: &LanguageServerId,
+        worktree: &Worktree,
+    ) -> Result<zed::Command> {
+        let binary = self.find_clice_binary(worktree)?;
+        Ok(zed::Command {
+            command: binary.path,
+            args: vec![
+                "--mode".to_string(),
+                "pipe".to_string(),
+            ],
+            env: Default::default(),
+        })
+    }
+}
+
+zed::register_extension!(CliceExtension);
--- a/flake.lock
+++ b/flake.lock
@@ -1,61 +0,0 @@
-{
-  "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1738961098,
-        "narHash": "sha256-yWNBf6VDW38tl179FEuJ0qukthVfB02kv+mRsfUsWC0=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "a3eaf5e8eca7cab680b964138fb79073704aca75",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "root": {
-      "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}
--- a/Show More
+++ b/Show More