What problem does it solve? Backend changes in the Multica platform span many layers—HTTP handlers, use-case services, SQL migrations, CLI, daemon, and MCP integrations—and making changes without a consistent workflow leads to fat handlers, broken transactions, and missed migration steps. This Skill enforces the existing server architecture so changes land in the right layer with proper tests. ## Core Features & Use Cases - Layered backend workflow: Routes changes to the correct role (handler, use case, policy, persistence, adapter, CLI, daemon, MCP) while keeping HTTP handlers thin and transactions scoped to one business operation. - Schema and query changes: Guides adding up/down migrations, updating sqlc queries, running make sqlc, and updating handlers, converters, and tests in the same slice. - Integration automation scripts: Provides TypeScript agent scripts for task bootstrap, direct_merge smoke testing, and blocked-issue reruns instead of manual psql or gh commands. - Use Case: When adding a new API endpoint that requires a database column, follow the workflow to write the migration, regenerate sqlc code, implement the use case, and run focused Go tests before handing off to QA. ## Quick Start Ask the agent to implement a backend change such as adding a new field to an issue endpoint, and it will follow the migration, sqlc, handler, and testing workflow automatically.
