Awesome agent capabilities

MCP servers, skills, plugins and tools you can give an AI agent: Claude Code, Codex, Antigravity, Cursor, GitHub Copilot, OpenCode, Gemini CLI and Grok Build. 2347 items, 622 of them reviewed by us.

This list is what the Capabilities screen of Munder Difflin shows. The app reads it from this repository, so a change merged here reaches people with no new release of the app.

How a change reaches the app

1. Each item is a row in one of the files in data. A pull request changes them, and two checks run on it: node scripts/check.mjs reads every file against the schema, and node scripts/publish.mjs --check builds the whole list with the app's own check.
2. A merge into main is checked and signed automatically. A workflow builds the list from data, runs the app's own check on every item, writes this README and the pages in listed, signs the list and commits it as catalog-update.json at the top of this repository. Nobody signs by hand.
3. Munder Difflin reads that file when its Capabilities screen opens and once an hour. It uses the list only when the signature is ours, every item passes the check, and the list is newer than the one it holds.

Reviewed and listed

• Reviewed: a maintainer opened the source, checked what it can do and wrote how to install it. Where it is safe, the app installs it with one press, after showing each step.
• Listed, not reviewed by us: found in public directories and listed as written there. The app runs nothing for these; open the source and follow its own steps.

Contents

• MCP servers (299)
• Skills (25)
• Skill packs (58)
• Plugins (109)
• Subagent sets (4)
• Hook packs (6)
• Status lines (3)
• Tools (93)
• Agents (14)
• Apps (11)
• Listed, not reviewed by us (1725)
  • MCP servers (701)
  • Skills (61)
  • Skill packs (57)
  • Plugins (401)
  • Subagent sets (16)
  • Hook packs (12)
  • Status lines (3)
  • Tools (328)
  • Agents (45)
  • Apps (101)

MCP servers

Source control and CI

• Azure DevOps MCP server: Gives an agent access to Azure DevOps: projects, work items, repositories and pull requests, pipelines, test plans, wikis, search and Advanced Security alerts. Microsoft recommends its hosted remote server over the local one. Made by Microsoft. Works with any engine.
• CircleCI MCP server: CircleCI's own hosted server. Lists runs, workflows and jobs, reads job logs, tests and artifacts, and can rerun or cancel a workflow. Made by CircleCI. Works with all engines.
• Git: Reads status, diffs, history and branches of a local Git repository, and can stage, commit, reset the index, create a branch and check one out. Twelve tools, no push. It works on the whole repository that holds the folder it is given. Made by Model Context Protocol project. Works with all engines.
• GitHub MCP Server: GitHub's own server: repositories, issues, pull requests, Actions, code security, gists and notifications. Its tools include delete_file and delete_repository. A read only switch and tool groups narrow it. Made by GitHub. Works with all engines.
• GitLab MCP server: GitLab's own server, built into GitLab. Reads projects, merge requests, diffs, pipelines and work items, and can create issues, commits, branches, merg

... View full README on GitHub