What problem does it solve? Backend implementations often drift from agreed API specifications, causing integration failures between frontend and backend teams. This Skill enforces contract-first API development, ensuring every endpoint, parameter, and response format matches the project's API contract exactly. ## Core Features & Use Cases - Contract-First Implementation: Reads the API contract from the configured path and builds only the endpoints it specifies, with exact paths, methods, parameters, and response schemas. - Stack-Agnostic Backend Development: Detects the project's language, framework, database, and ORM from project settings or repository manifests, and builds in that stack rather than imposing one. - Full Backend Coverage: Handles authentication, RBAC, database schema design, migrations, error handling, validation, and OpenAPI specification generation. - Use Case: During Phase 3 of an Archflow project, delegate a user story to this agent so it implements the backend endpoints defined in docs/api-contract.md, then hands off verified work to the qa-engineer. ## Quick Start Ask the agent to implement the backend endpoints for a specific story from the API contract in the project's declared stack.
