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Research · Agent Development / AGENT SKILL
opensrc
0
Fetch dependency source code to help AI agents understand package internals.
Fetch dependency source code to give AI agents deeper implementation context. Use when the agent needs to understand how a library works internally, read source code for a package, fetch implementation details for a dependency, or explore how an npm/PyPI/crates.io package is built. Triggers include "fetch source for", "read the source of", "how does X work internally", "get the implementation of", "opensrc path", or any task requiring access to dependency source code beyond types and docs.
Understand the trade-offs.
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The full skill.
Original instructions from the publisher’s SKILL.md
# Source Code Fetching with opensrc Fetches dependency source code so agents can read implementations, not just types. Clones repositories at the correct version tag and caches them globally at `~/.opensrc/`. ## Core Pattern ```bash rg "parse" $(opensrc path zod) cat $(opensrc path zod)/src/types.ts find $(opensrc path zod) -name "*.test.ts" ``` `opensrc path <pkg>` prints the absolute path to cached source. If not cached, it fetches automatically. Progress goes to stderr, path to stdout, so `$(opensrc path ...)` works in subshells. ## Fetching Source Code ```bash opensrc path zod opensrc path pypi:requests opensrc path crates:serde opensrc path facebook/react # Multiple packages at once opensrc path zod react next opensrc path pypi:requests pypi:flask opensrc path crates:serde crates:tokio # Specific versions opensrc path zod@3.22.0 opensrc path pypi:flask@3.0.0 opensrc path owner/repo@v1.0.0 opensrc path owner/repo#main ``` ### Version Resolution For npm packages, opensrc auto-detects the installed version from lockfiles (`package-lock.json`, `pnpm-lock.yaml`, `yarn.lock`). Use `--cwd` to resolve from a different project: ```bash opensrc path zod --cwd /path/to/project ``` For PyPI and crates.io, explicit versions or latest are used. For repos, use `@ref` or `#ref` to pin a branch, tag, or commit. ## Managing the Cache Source is cached globally at `~/.opensrc/` (override with `OPENSRC_HOME`). ```bash opensrc list # show all cached sources opensrc list --json # JSON output opensrc remove zod # remove a package opensrc remove facebook/react # remove a repo opensrc clean # remove everything opensrc clean --npm # only npm packages opensrc clean --pypi # only PyPI packages opensrc clean --crates # only crates.io packages opensrc clean --packages # all packages, keep repos opensrc clean --repos # all repos, keep packages ``` ## When to Fetch Source Fetch source when you need to: - Understand internal behavior that types don't reveal - Debug unexpected library behavior - Learn patterns from well-known implementations - Verify how a function handles edge cases Don't fetch source for simple API usage questions that docs or types can answer.