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+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+vuepress-theme-plume is a VuePress 2 theme monorepo for building blogs, documentation, and knowledge bases.
+It includes a main theme, several plugins, a CLI tool, and example implementations.
+
+## Commands
+
+```bash
+# Install dependencies
+pnpm install
+
+# Build all packages (required after clone, outputs to lib/)
+pnpm build
+
+# Development - runs theme + docs dev servers concurrently
+pnpm dev
+
+# Lint (eslint + stylelint)
+pnpm lint
+pnpm lint:fix  # auto-fix
+
+# Run tests (vitest)
+pnpm test
+
+# Run a single test file
+pnpm test src/path/to/file.spec.ts
+
+# Run tests related to changed files (for pre-commit)
+cross-env TZ=Etc/UTC vitest related --run
+
+# Build docs only
+pnpm docs:build
+
+# Serve docs locally
+pnpm docs:serve
+
+# Release workflow
+pnpm release  # runs lint + build + version bump + changelog + git commit
+```
+
+## Monorepo Structure
+
+```txt
+├── theme/          # Main VuePress theme (vuepress-theme-plume)
+├── plugins/        # VuePress plugins
+│   ├── plugin-search/    # Full-text fuzzy search
+│   ├── plugin-md-power/  # Markdown enhancements
+│   └── plugin-fonts/     # Special character font support
+├── cli/            # CLI tool (create project scaffolding)
+├── docs/           # Documentation site
+└── examples/        # Example implementations
+    ├── pure-blog/
+    └── layout-slots/
+```
+
+## Theme Architecture
+
+The theme is organized into three layers:
+
+- **`src/node/`** - Build-time code (runs during `vuepress build/dev`)
+  - `prepare/` - Content preparation (frontmatter parsing, collection resolution)
+  - `plugins/` - VuePress plugin registration
+  - `config/` - Theme configuration handling
+  - `autoFrontmatter/` - Automatic frontmatter generation
+
+- **`src/client/`** - Client-side code (runs in browser)
+  - `components/` - Vue components
+  - `composables/` - Vue composables (outline, search, etc.)
+  - `styles/` - CSS/SCSS styles
+  - `features/` - Feature-specific components and logic
+
+- **`src/shared/`** - Shared code (used by both node and client)
+  - `frontmatter/` - Frontmatter schemas and utilities
+  - `locale/` - i18n translations
+  - `options.ts` - Theme options types
+  - `features/` - Feature flags and shared feature logic
+
+## Build Output
+
+Each package uses [tsdown](https://tsdown.dev/) to compile TypeScript. Build output goes to `lib/`:
+
+- `lib/node/` - Node-side exports
+- `lib/client/` - Client-side exports
+- `lib/shared/` - Shared exports
+
+The `lib/` directory is gitignored and must be built with `pnpm build`.
+
+## Testing
+
+Tests use Vitest with coverage enabled. Test files are located at `**/__test__/**/*.spec.ts` and are excluded from coverage reports. Run tests with timezone fixed to UTC to ensure consistent results.
+
+## Key Dependencies
+
+- **VuePress**: v2.0.0-rc.28 with @vuepress/bundler-vite
+- **Vue**: ^3.5.30
+- **Shiki**: ^4.x for syntax highlighting
+- **VueUse**: ^14.x for composables
+- **markdown-it**: ^14.x for Markdown processing
+
+## Development Notes
+
+- Node.js 20.19.0+ required
+- pnpm catalogs are used for dependency management (`dev`, `peer`, `prod`, `vuepress`)
+- The theme depends on `vuepress-plugin-md-power` and `@vuepress-plume/plugin-search` as workspace dependencies
+- Some peer dependencies are optional (e.g., artplayer, dashjs, three.js)
+- Plugins (`plugins/*`) do not have dev commands — changes require `pnpm build` to take effect
+- The `lib/` directory is gitignored and must be rebuilt after `pnpm install`