Implementation

Source code exists at the declared path for each platform. Code matches the function.yml signature and contract.

Implementation realizes structural models as executable code across all platform layers. In SBX, implementation is defined as a 100% faithful representation of the governing model — any deviation between model and code is classified as a bug. The SDLC enforces top-to-bottom flow: goals to user stories to test specs to implementation to validation.

PD

go: pkg/{entity}/validate.go — function body

MD

go: pkg/{entity}/create.go — CRUD implementation

SI

go: internal/api/{entity}_handler.go — HTTP handler

UI

svelte: lib/components/sections/{Entity}Form.svelte

• FDD4 Implement per Layer
• FDD5 Verify + Commit

• Typed persistence package implementation projects/sbx/packages/core/go/pkg/persistence/