Invocation points:

User describes a service or API they want an LLM to reach
/gsd mcp init scaffolds config but there's a tool integration to build
Replacing a hand-rolled extension with a standard MCP server

<core_principle> THE QUALITY METRIC IS TASK COMPLETION, NOT SCHEMA VALIDITY. A server that lists 30 tools with cryptic names and empty descriptions passes the protocol but fails the point. The tool description is the only thing an LLM has to decide whether to call it — write it like documentation for a stranger under time pressure.

DESIGN FOR THE MODEL, NOT THE API. A raw REST endpoint is rarely the right tool. Group, filter, and pre-shape responses so the model gets what it needs to reason, not a 40KB JSON blob it has to summarize. Fewer, deeper tools beat many, shallow ones. </core_principle>

create-mcp-server