Research: api-designer

Cached research evidence for api-designer (not authority).

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Problem: Contract-first API design for REST, GraphQL, gRPC. Design, spec, review, version, compat, sdk. Use for API architecture and OpenAPI specs. NOT for MCP servers (mcp-creator) or frontend API calls.

Stack / assumptions: portable skill scripts under scripts/; on-demand references; eval fixtures

Comparable alternative: mcp-creator for mcp servers

Repo summary:

Contract-first API design across REST, GraphQL, and gRPC. Produces OpenAPI 3.1 specs, reviews existing APIs, analyzes backward compatibility, and scaffolds client code.

> Grounded in repository skills/api-designer/SKILL.md; treat as evidence, not authority.