# Release v4928.1.5.6 — Safe Email Reply Agent Phase 1

## Added

- Optional OpenAI Responses API + file_search email reply agent.
- New `app/email_reply_agent_service.py`.
- `message_drafts.metadata.email_agent` with intent, priority, confidence, review flag and knowledge summary.
- Internal API endpoint `POST /api/internal/tasks/{task_id}/reply-draft`.
- Admin UI badge/agent status display.

## Safety

- Draft-only; no automatic sending.
- Fallback to existing ClientFlow reply assistant if agent is disabled or unavailable.
- Hard no-reply/internal templates are not overridden by the agent.
- Server-side reply safety validation remains active.

## Configuration

Set:

```env
CLIENTFLOW_EMAIL_REPLY_AGENT_ENABLED=true
OPENAI_API_KEY=sk-proj-...
OPENAI_VECTOR_STORE_ID=vs_...
```

Keep `false` to preserve the previous behavior.