# Phase 2 Summary

**Status:** Complete
**Completed:** 2026-04-26

## Delivered

- Added in-memory diagnostic interview domain package.
- Added Backend Developer Interview seed question catalog.
- Added diagnostic session create/get/answer service.
- Added session status that becomes `complete` after all diagnostic questions
  have answers.
- Added HTTP endpoints:
  - `POST /api/v1/diagnostic-sessions`
  - `GET /api/v1/diagnostic-sessions/{id}`
  - `POST /api/v1/diagnostic-sessions/{id}/answers`
- Extended workflow stub to return deterministic typed grading results.
- Added grading evidence to `GradedAnswer`.
- Added domain, workflow, and HTTP flow tests.

## Files Added

- `internal/httpapi/diagnostic.go`
- `internal/httpapi/diagnostic_test.go`
- `internal/interview/catalog.go`
- `internal/interview/service.go`
- `internal/interview/service_test.go`
- `internal/interview/store.go`
- `internal/interview/types.go`

## Verification

```powershell
gofmt -w cmd internal
go test ./...
openspec validate bootstrap-job-tutor-platform --strict
```

Additional live smoke checks:

- `GET /healthz` returned status `ok`.
- Diagnostic create/answer/get flow returned a session id, 3 questions, a
  `solid` typed grade, 1 evidence item, and 1 stored answer.

## Deferred

- Durable database persistence.
- Authentication.
- Real `third-one` grading calls.
- Learner memory extraction and readiness progression.