Check reference / Clarity & Instructions
MCPT-03 Tool parameters documented
Live introspection — CLI-only, behind the explicit --mcp-live flag.
Why it matters
Undocumented parameters make the model guess formats and units — the classic source of silently-wrong tool calls (wrong date format, wrong ID namespace, wrong enum casing).
How to fix it
Add a description to every property in each tool's inputSchema: what it is, its format, and an example value where ambiguity is possible.