# Phase 6 Context: Teaching Assets

**Status:** Ready for execution
**Started:** 2026-04-26

## Goal

Generate reviewable teaching asset prompt candidates from ontology concepts.

## Inputs

- OpenSpec generated study asset lineage requirement.
- `docs/planning/WORKFLOW_CONTRACTS.md` TeachingAssetPrompt contract.
- Phase 5 ontology candidates and source evidence.
- PRD requirement to verify actual OpenAI model identifier before production
  image calls.

## Decisions

- Generate prompt candidates only; do not call an image provider in this phase.
- Default product model key remains `gpt-image-v2`.
- Keep `requires_model_id_verification=true` until a future production
  integration verifies the actual provider model identifier.
- Persist prompt lineage with concept, evidence, model key, and review state.

## Boundaries

In scope:

- Teaching asset prompt candidate service.
- Asset prompt and snapshot APIs.
- Model verification guard represented in output.

Out of scope:

- Real image generation calls.
- Binary asset storage.
- PPT export.
- Provider-specific OpenAI SDK integration.