opensrc

# opensrc Fetch npm package source code locally when you need to understand implementation details. ## When to Use - Debugging unexpected library behavior - Understanding internal patterns before extending a library - Types/docs are insufficient ## Commands ```bash # Fetch package(s) npx opensrc <package> npx opensrc ai zod @anthropic-ai/sdk # Check what's fetched cat opensrc/sources.json # Clean up when done rm -rf opensrc/<package> ``` ## Exploration Pattern ```bash # 1. Fetch npx opensrc ai # 2. Check structure (many are monorepos) ls opensrc/ai/packages/ # 3. Find what you need grep -r "functionName" opensrc/ai/src/ # 4. Read the implementation # (use Read tool) # 5. Clean up rm -rf opensrc/ai ``` ## Tips - **Check `sources.json` first** - don't re-fetch what's already there - **Target specific files** - don't read entire packages - **Monorepos**: Check `packages/` directory for subpackages - **Clean up** - source code takes disk space, remove when done ## Common Packages | Package | Structure | |---------|-----------| | `ai` | Monorepo: `packages/anthropic/`, `packages/openai/`, etc. | | `@anthropic-ai/sdk` | Single package: `src/` | | `zod` | Single package: `src/types/` |