Claude Code Open Source Tools
Discover 37 open source Claude Code repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. Claude Code projects here are most often combined with AI Agents, Developer Tools and AI. Last updated October 4, 2026.
37 repositories · updated October 4, 2026
Product-Manager-Skills: Apply Product Management Frameworks with AI
A library of structured product management skills that guides AI agents and PMs through discovery, strategy, delivery, research, and lifecycle work. Useful when teams want more consistent, explainable PM outputs across supported agent platforms.
ruflo: Coordinate AI Agents and Autonomous Workflows
Ruflo is a TypeScript agent harness for Claude Code and Codex. It adds coordinated agent teams, persistent memory, workflow automation, and MCP integrations for developers building multi-agent systems.
Understand-Anything: Explore Code Through Knowledge Graphs
Understand-Anything analyzes codebases, documentation, and knowledge bases, then presents their structure and relationships as interactive graphs. It is designed for developers and teams who want faster onboarding, code exploration, and change-impact analysis through AI coding platforms.
deliberation: Get Multi-Model Reviews and Consensus
Deliberation is an MCP server and coding-agent plugin that routes plans and code questions to external AI models for second opinions or arbiter-mediated consensus. It suits developers who want independent reviews before making consequential changes.
claude-ads: Audit and Manage Paid Advertising with Claude
Claude Ads helps agencies and performance teams audit, plan, monitor, and report on paid-media accounts across 12 platforms. It is read-only by default, with account changes gated by explicit approval and safety checks.
agency-agents: Install Role-Specific AI Agent Instructions
A large collection of specialized AI agent instruction files, organized by professional role and supported by scripts for installing them into compatible coding tools. Useful when you want reusable role-specific workflows rather than a single general-purpose prompt.
get-shit-done: Structure Claude Code Work with Prompts and Specs
get-shit-done was a lightweight system for meta-prompting, context engineering, and spec-driven development with Claude Code. This repository is archived; development has moved to GSD Core in the Open GSD repository.
claude-code-best-practice: Learn Claude Code Workflows and Practices
A community-maintained guide to Claude Code practices, configuration, agents, skills, and development workflows. It helps developers move from ad hoc prompting toward repeatable, agentic engineering, with examples and links to further resources.
claude-plugins-official: Discover Plugins for Claude Code
An Anthropic-managed directory of internal and community plugins for Claude Code. Browse and install plugins through the built-in plugin system, or use the directory as a reference when evaluating plugin structure and marketplace submissions.
codex-plugin-cc: Use Codex from Claude Code
A Claude Code plugin that connects your existing local Codex CLI for code reviews and delegated tasks. It suits developers who want Codex in their current workflow, with background job controls and session handoff.
andrej-karpathy-skills: Guide Claude Code Toward Safer Changes
A compact set of coding guidelines for Claude Code, based on Andrej Karpathy’s observations about common LLM coding mistakes. It encourages clarification, simpler implementations, focused edits, and verifiable goals.
Anthropic-Cybersecurity-Skills: Give AI Agents Security Playbooks
A library of structured cybersecurity workflows for AI agents, covering 34 security domains and mapped to six industry frameworks. Use it to provide compatible agents with practical guidance for authorized security work.