Epic: API Builder V1 (single UX, dual density)

[nicdavidson]

Goal
Deliver API Builder V1 with a single UX that supports both fast bulk authoring and engineering-depth controls.

Execution order

1. Contract mapper
2. Workbench table
3. Bulk actions
4. Docs guard
5. Source picker v2
6. Workflow strip
7. Inspector + JSON
8. Test tab
9. Defaults + templates
10. Performance guardrails

Tracked issues

• API Builder V1: Endpoint Workbench Table (core) #492 API Builder V1: Endpoint Workbench Table (core)
• API Builder V1: Contract mapper for snake_case API boundary #493 API Builder V1: Contract mapper for snake_case API boundary
• API Builder V1: Bulk actions (Duplicate, Save+New, shortcuts) #494 API Builder V1: Bulk actions (Duplicate, Save+New, shortcuts)
• API Builder V1: Workflow status strip (assistive, non-blocking) #495 API Builder V1: Workflow status strip (assistive, non-blocking)
• API Builder V1: Source picker v2 (grouped/search/recent/introspection) #496 API Builder V1: Source picker v2 (grouped/search/recent/introspection)
• API Builder V1: Inspector + Advanced JSON panel with two-way sync #497 API Builder V1: Inspector + Advanced JSON panel with two-way sync
• API Builder V1: Test tab MVP (run, timing, curl) #498 API Builder V1: Test tab MVP (run, timing, curl)
• API Builder V1: Docs guard + publish flow polish #499 API Builder V1: Docs guard + publish flow polish
• API Builder V1: API defaults + endpoint templates #500 API Builder V1: API defaults + endpoint templates
• API Builder V1: Performance and UX guardrails #501 API Builder V1: Performance and UX guardrails

[nicdavidson]

Resumed work and completed another V1 slice locally on branch .

What I finished:

• Contract mapper extraction for API Builder payload boundaries (camelCase in UI -> snake_case at API boundary).
• Source picker v2 pass: search input, grouped source list (Recent + by service type), introspection badge, and persisted recent sources in localStorage.
• Endpoint list safety: no endpoints shown until an API is selected.
• Build artifacts regenerated in .

Commit:

• feat(api-builder): add contract mapper and source picker v2 UX

Validation:

• passes (existing repo-wide warnings only).

No push yet.

[nicdavidson]

Correction: previous comment had shell interpolation artifacts from CLI quoting.

Resumed work and completed another V1 slice locally on branch feature/add-api-builder.

Completed:

• Contract mapper extraction for API Builder payload boundaries (camelCase in UI -> snake_case at API boundary).
• Source picker v2 pass: search input, grouped source list (Recent + by service type), introspection badge, and persisted recent sources in localStorage.
• Endpoint list safety: no endpoints shown until an API is selected.
• Build artifacts regenerated in dist/.

Commit:

• 72c0cd1 feat(api-builder): add contract mapper and source picker v2 UX

Validation:

• npm run build passes (existing repo-wide warnings only).

No push yet.