Tool definition for LLM function calling

A function-calling tool definition for the render endpoint. For a ready-made MCP server over the same endpoints, install @ultimaps/mcp. input_schema is the inlined render-request schema with two differences, both for strict function-calling providers that choke on oneOf: choropleth.format publishes the OBJECT form only (use {"preset": "compact"} where the API also accepts the bare string "compact"), and the $schema, $id and title keywords are dropped. Everything else is identical. The endpoint itself still accepts both forms, and /v1/schemas/render-request.json publishes the unmodified schema. Cached 5 minutes.