12 Best GitHub Repositories for Claude Code in 2026

The 12 best GitHub repos for Claude Code in 2026: production skills, Anthropic's official skills repo, TDD frameworks, MCP servers, agent harnesses, CI/CD integration and usage tracking.

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The best Claude Code GitHub repos right now: Manas Skills for plug-and-play production skills, Superpowers for TDD-enforced development, Everything Claude Code for a full agent harness, and claude-code-action for CI/CD. Which one you install first depends on whether you need skills, a framework, or infrastructure.

The scale explains the problem. Claude Code has gone from a niche terminal tool to the backbone of how serious developers ship code in 2026, and the repos that get things done are buried under noise.

This guide covers the 12 best GitHub repositories for Claude Code: plug-and-play skill packs, TDD frameworks, Anthropic's official skills repo, MCP servers, complete agent harnesses and a usage tracker. Last checked: October 2026 (star counts, licenses and releases re-verified through the GitHub API on 2026-10-21). We break down what each repo does, who it's for, and whether it's worth adding to your workflow.

Best Claude Code GitHub repos: a brief overview

If you want production-ready skills you can drop in today:

• Start with Manas Skills for 10 skills covering SEO, browser automation, video, and diagrams
• Add Superpowers when you want strict TDD enforcement across your entire dev workflow
• Read anthropics/skills for Anthropic's own reference skills and the Agent Skills spec

If you want a complete agent framework:

• Go with Everything Claude Code for the most complete harness (71 agents, security scanning, memory)
• Choose awesome-claude-code-toolkit for a curated toolkit with 400K+ skills via SkillKit

The agent frameworks space moves fast. For an autonomous agent framework that crossed 250K GitHub stars in under 60 days, see our overview of OpenClaw.

If you need CI/CD and infrastructure integration:

• Start with claude-code-action for GitHub Actions automation on PRs and issues
• Add github-mcp-server to give Claude Code native access to repos, PRs, and CI workflows
• Run ccusage to see daily and per-session token usage and estimated cost

If you want to learn and explore:

• Use awesome-claude-code as a large directory of plugins and skills
• Study claude-code-ultimate-guide for its guide, runnable examples and templates (430K+ lines per its repo description)

GitHub stars for all 12 repos, in list order

Source: star counts from the GitHub API for each repository, checked 2026-10-21. Stars measure attention, not quality, which is why the ranking also weighs scope and maintenance.

1. Manas Skills, best plug-and-play skill pack for Claude Code

Manas Skills is a public collection of Claude Code skills built by ManasFlow. Note: Manas Skills is a public GitHub project maintained by ManasFlow, the team behind this site. Unlike most skill repos that offer a handful of narrow utilities, Manas Skills ships 10 production-grade skills that cover a wide range of real workflows: SEO audits, headless browser automation, Remotion video creation, Excalidraw diagramming, MCP client connections, and more.

Each skill is a self-contained folder you drop into .claude/skills/. No configuration, no dependencies to manage. Claude Code auto-loads it and gains the capability immediately. The repo stands out because every skill was built for production use at an agency, not as a demo or proof of concept.

Key features

• 10 production-ready skills: SEO audits, browser automation, Remotion video, Excalidraw diagrams, MCP client, UI/UX design system, NotebookLM integration, artifact builder, skill creator, and Superpowers TDD
• True plug-and-play: copy a folder into .claude/skills/ and it works
• Each skill includes supporting scripts, reference files, and detailed trigger conditions
• Skills cover both technical (code, MCP, browser) and creative (video, diagrams, UI) workflows
• Used by ManasFlow on its own client builds (our repo)

Best for

• Developers who want a curated set of high-quality skills rather than sifting through thousands of mediocre ones
• Teams running AI agent development workflows who need browser automation, SEO, and diagramming in their Claude Code setup
• Anyone who wants to see how well-structured Claude Code skills should be built

Pricing

• Free and open source under the MIT license, added to the repo on 2026-09-26
• No paid tiers or premium features

Pros

• Used by ManasFlow on its own client builds (our repo)
• Covers an unusually wide range of use cases in a single repo (SEO, video, diagrams, browser, MCP)
• Clean folder structure makes it trivial to install one skill or all ten
• Includes a skill-creator skill for building your own skills following best practices

Cons

• Smaller community compared to repos with tens of thousands of stars (newer repo, launched March 2026)
• Limited to 10 skills (though each is deep and well-built)

2. Superpowers, best TDD-enforced dev framework

Superpowers is a development methodology encoded as a skills framework that turns Claude Code from a reactive code generator into something that behaves like a senior developer who follows test-driven development. With 302,896 GitHub stars (checked 2026-10-21) and official acceptance into the Anthropic marketplace, it is the most-starred repo on this list, ahead of Everything Claude Code (285,253).

The framework enforces a strict 7-step workflow, as the README lists it: brainstorming, git worktree setup, writing plans, subagent-driven or inline plan execution, TDD, code review, and finishing the branch. For the sub-agents worth adding to that workflow, see the 10 best Claude Code sub-agents. The key differentiator is that Superpowers literally deletes code written before tests exist. TDD is not optional.

Key features

• 7-phase agentic workflow with mandatory TDD enforcement
• 15 skills listed in the README skills library (checked 2026-10-21), covering testing, debugging, collaboration, and planning
• Skills trigger automatically at each step; the repo no longer has the commands folder that held /brainstorm, /write-plan and /execute-plan (checked 2026-10-21)
• YAGNI and DRY principles baked into every skill
• Socratic brainstorming phase forces requirement clarity before any code is written

Best for

• Engineering teams that want to enforce consistent development practices across all Claude Code usage
• Solo developers who want the discipline of a senior code reviewer built into their workflow
• Organizations adopting Claude Code at scale who need a shared methodology

Pricing

• Free and open source
• Available on the Anthropic marketplace

Pros

• TDD enforcement catches bugs before they ship and cuts debugging time
• The structured workflow prevents the common problem of Claude Code generating code before requirements are clear
• Massive community (302K+ stars) means active maintenance and rapid issue resolution

Cons

• The strict TDD enforcement can feel heavy for quick prototyping or exploratory coding
• Learning curve: the 7-phase workflow requires understanding before you see the benefit
• Opinionated methodology may conflict with teams that have their own established dev practices

3. Everything Claude Code, best complete agent harness system

Everything Claude Code (ECC) is an MIT-licensed agent harness for Claude Code with 285,253 stars (checked 2026-10-21). Its author won the Anthropic x Forum Ventures hackathon in September 2025, and its AgentShield scanner was built at the Claude Code Hackathon (Cerebral Valley x Anthropic, February 2026), per the README. Where Superpowers focuses on TDD methodology, ECC provides a full operating system: 71 agents, security scanning, memory optimization, continuous learning, and production-ready configurations.

The latest GitHub release is v2.2.3 (October 1, 2026). The README says ECC works best in Claude Code, has native Codex and Qoder plugin paths, and ships capability-limited adapters for Cursor, OpenCode, Gemini and other harnesses. Per the README, the repo includes 71 agents, 311 skills and 97 legacy command shims, plus hooks, rules, memory and AgentShield security scanning.

Key features

• 71 agents, 311 skills and 97 legacy command shims (README, 2026-10-21)
• AgentShield config scanner: 102 static analysis rules, 1,282 tests, 98% coverage (per the README)
• Cross-platform: works with Claude Code, Codex, OpenCode, and Cursor
• Harness commands: /harness-audit, /loop-start, /quality-gate, /model-route

Best for

• Enterprise teams deploying Claude Code across multiple projects who need security scanning and quality gates
• Developers who want a single harness that works across multiple AI coding tools beyond Claude Code
• Teams that need production-grade agent orchestration with monitoring and metrics

Pricing

• Free and open source
• No paid tiers

Pros

• The most complete agent system available, covering security, testing, memory, and multi-model routing
• Cross-platform support means you don't have to choose between Claude Code and Cursor
• Includes the AgentShield config scanner, which the README lists with 102 static analysis rules, 1,282 tests and 98% coverage

Cons

• The sheer scope can be overwhelming for developers who just want a few skills
• Heavy setup compared to simpler repos like Manas Skills or Superpowers
• Rapid iteration (frequent breaking changes between versions)

4. anthropics/skills, best official reference for Agent Skills

anthropics/skills is Anthropic's public repository for Agent Skills. It holds example skills, the document skills (docx, pdf, pptx, xlsx) behind Claude's file creation, the Agent Skills specification and a starter template. On 2026-10-21 the repo showed 182,640 stars and a last commit on 2026-10-09.

Manas Skills and Superpowers give you finished workflows. This repo shows you the format those workflows are built on. Each skill is a folder with a SKILL.md file, and the frontmatter needs only a name and a description. We placed it fourth because it is the reference every other skills repo on this list follows. For where to find third-party skills beyond GitHub, see our guide to the Claude skills marketplace.

Key features

• Installs as a Claude Code plugin marketplace with /plugin marketplace add anthropics/skills, then pick document-skills or example-skills
• 19 skill folders as of 2026-10-21, including mcp-builder, skill-creator, webapp-testing, frontend-design and the four document skills
• The Agent Skills specification lives in /spec and a template skill in /template
• According to the README, the same skills are available on paid Claude.ai plans and through the Claude API

Best for

• Developers writing their own skills who want the reference format straight from Anthropic
• Teams that need Word, PDF, PowerPoint or Excel generation inside Claude Code

Pricing

• Free. The README says many skills are Apache 2.0, while the docx, pdf, pptx and xlsx skills are source-available, not open source

Pros

• Maintained by Anthropic, so the examples follow the current skill format
• The document skills are, per the README, actively used in a production AI application, which makes them good study material for complex skills
• One command adds the whole set to Claude Code

Cons

• The README labels the skills as provided for demonstration and educational purposes only, and warns that Claude's built-in behavior may differ
• Mixed licensing: you cannot reuse the document skills as freely as the Apache 2.0 ones

Skip it if

• You want an enforced development workflow or a full agent harness. Superpowers or Everything Claude Code fit that better

5. claude-code-action, best GitHub Actions CI/CD integration

claude-code-action is Anthropic's official GitHub Action that runs Claude Code directly in your CI/CD pipeline. It detects @claude mentions in PR comments, responds to issue assignments, and can implement code changes autonomously. This is the bridge between Claude Code on your laptop and Claude Code in your team's automation pipeline.

The action runs the full Claude Code runtime in a GitHub Actions runner, reading your repo, analyzing diffs, and posting findings directly to pull requests. It supports Anthropic API, Amazon Bedrock, Google Vertex AI, and Microsoft Foundry for authentication.

Key features

• Official Anthropic-maintained GitHub Action
• Responds to @claude mentions in PR comments and issue assignments
• Implements code changes and opens PRs autonomously
• Multi-provider auth: Anthropic API, Bedrock, Vertex AI, Foundry
• Configurable triggers: PR comments, issue assignments, push events, manual dispatch

Best for

• Teams that want Claude Code reviewing every PR automatically
• Organizations needing AI-assisted code review and implementation in CI/CD
• Developers who want to delegate routine PR work (docs updates, test writing, bug fixes) to Claude

Pricing

• Free and open source
• You pay only for Claude API usage

Pros

• Official Anthropic support means reliability and long-term maintenance
• Multi-provider auth gives flexibility for enterprise deployments with existing cloud contracts
• Integrates naturally with existing GitHub workflows without changing developer habits

Cons

• API costs can add up on high-volume repos with many PRs
• Limited to GitHub (no GitLab or Bitbucket support)
• Requires careful prompt engineering in workflow configs to get consistent results

6. github-mcp-server, best official MCP server for GitHub workflows

github-mcp-server is GitHub's official MCP (Model Context Protocol) server that gives Claude Code native access to repositories, pull requests, issues, branches, Actions workflows, and code search. Instead of Claude Code guessing about your repo state, it can query GitHub's API directly through a standardized protocol.

This is the most practical MCP server for any developer who works with GitHub daily. Compatible with VS Code 1.101+, Claude Desktop, Cursor, and Windsurf.

Key features

• Official GitHub-maintained MCP server
• Full access to repos, PRs, issues, branches, commits, and Actions
• Code search across your entire organization
• Compatible with Claude Code, VS Code, Claude Desktop, Cursor, Windsurf
• Supports GitHub Enterprise and fine-grained personal access tokens

Best for

• Any developer using Claude Code with GitHub repositories (which is almost everyone)
• Teams that want Claude Code to create PRs, manage issues, and trigger CI workflows
• Organizations on GitHub Enterprise that need custom workflow automation with proper access controls

Pricing

• Free and open source
• Requires a GitHub personal access token (free to create)

Pros

• Official GitHub support guarantees compatibility and security
• Turns Claude Code into a full GitHub collaborator instead of a code generator
• Works across multiple AI coding tools, not locked to Claude Code

Cons

• Requires initial MCP configuration setup (not zero-config)
• Token permissions need careful scoping for team environments
• Some advanced GitHub features (Projects, Discussions) have limited MCP coverage

7. awesome-claude-code-toolkit, best all-in-one skills and agent collection

awesome-claude-code-toolkit is a large pre-packaged toolkit for Claude Code, bundling 135 agents, 35 curated skills (plus 400,000+ via SkillKit), 42 commands, 176+ plugins, 20 hooks, 15 rules, 7 templates and 14 MCP configs (repo description, 2026-10-21) into a single installable package.

Where awesome-claude-code (entry #8) is a directory of links, this toolkit is a working installation. You clone it and run it. The SkillKit integration is particularly useful: it connects to a marketplace of over 400,000 community skills, searchable from within Claude Code.

Key features

• 135 pre-built agents for specialized tasks
• SkillKit integration: access 400,000+ community skills from within Claude Code
• 42 ready-to-use commands and 20 hooks
• 14 MCP configs pre-wired
• 7 project templates for common setups

Best for

• Developers who want a large collection of agents and skills without curating their own
• Teams exploring what's possible with Claude Code and want maximum surface area
• Anyone who wants SkillKit marketplace access integrated into their setup