How do I install the Opensrc skill?

Run npx skillmds@latest add andreasasprou/opensrc in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Opensrc skill do?

Fetch npm package source code for implementation analysis. Use when types/docs aren't enough and you need to understand HOW a library works internally. It is listed under Coding & Dev Tools on SkillMD.

Is Opensrc safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Opensrc?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Opensrc free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Opensrc?

andreasasprou (@andreasasprou) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Opensrc by andreasasprou — Agent Skill

Name: Opensrc
Author: andreasasprou

File contents

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

# 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

# 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/`

Frequently asked questions

Opensrc