What problem does it solve? Building a Make App backend requires consistent Service routes, correct Make gateway adapter behavior, and a documented UI-Service contract; this Skill enforces those rules so generated or refactored apps/service code stays layered, secure, and contract-compliant. ## Core Features & Use Cases - Service API contract design: Defines route shapes, response modes, and apps/docs/api.md documentation for schema, records, presets, candidates, lookup, and file proxy routes. - Make Data API adapters: Implements gateway-origin config, appKey injection, login-context forwarding, direct Make response passthrough, and AbortSignal cancellation propagation. - Schema normalization and safety: Normalizes fields and createFields independently, isolates permission-trimmed caches per principal, and enforces layered source structure with tests. - Use Case: When generating a new Make App Service, use this Skill to scaffold the layered apps/service tree, implement record CRUD and file proxy routes, and document every route in apps/docs/api.md. ## Quick Start Ask the AI to use the make-app-service skill to implement the records list and detail Service routes with Make Data API adapters and update apps/docs/api.md.