Why it's useful
Drop them into your project and your agent can hand work to a specialist with the right instructions already written. Free and easy to read and edit.
What it needs
Claude Code (or any agent that reads agent files).
Image: msitarzewski. The Agency (agency-agents) belongs to msitarzewski; we just think it's worth knowing about.
More tools like this
Open source · MIT 8.2k stars on GitHub
Agents & MCP
BrowserSkill
by Tencent
Lets a coding agent use your real, signed-in Chrome or Edge in its own visible window.
Open source · Apache-2.0 35.6k stars on GitHub
Agents & MCP
Buzz
by Block
A self-hosted team workspace where people and AI agents share the same chat rooms, repos and workflows.
Open source · MIT 8.2k stars on GitHub
Agents & MCP
Claude Agent SDK (Python)
by Anthropic
Anthropic's Python library for building your own agents on Claude Code's engine. The library is open source; the Claude Code engine it bundles is not.