Skills
96,770 packaged capabilities and playbooks for agents. Install any of them with one command.
Testing & quality
Make a bug in a TypeScript resource executable before fixing it, with a regression test that fails before the fix and passes after. Use only when the user asks for TDD, a failing test, or a regression test, or when the resource already has a test runner and the bug has an obvious cheap test target. Skip it when the test path is unclear, expensive or integration-heavy.
Audit a Feast strategy script before it may run with real money — the runtime's static rules first, then a model read against a fixed checklist — and record the verdict, bound to the file's exact bytes. Use when the user has a strategy script for their Feast agent, asks you to write one, or asks whether a script is safe to run.
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.