---
name: gpt-image-2-apimart
description: Generate or inspect project image assets through this repository's APIMart OpenAI-compatible gpt-image-2 workflow. Use when Codex needs to create puzzle template sample images, reproduce the server-rs gpt-image-2 request body, dry-run image prompts, batch-generate local project thumbnails, or debug APIMART_BASE_URL / APIMART_API_KEY image-generation configuration without exposing secrets.
---

# gpt-image-2 APIMart

Use this skill for project-local image asset generation that must match the repository's `server-rs` APIMart `gpt-image-2` path.

## Workflow

1. Read the local task and decide whether the image is project-bound.
2. Prefer `scripts/generate-template-samples.mjs` for puzzle template thumbnails or small batches.
3. Run dry-run first:

   ```powershell
   node .codex/skills/gpt-image-2-apimart/scripts/generate-template-samples.mjs --dry-run
   ```

4. If dry-run looks correct and the user asked for real assets, run live generation with a small limit:

   ```powershell
   node .codex/skills/gpt-image-2-apimart/scripts/generate-template-samples.mjs --live --limit 6
   ```

5. Save final project assets under `public/` or another explicitly requested workspace path.
6. Never print `APIMART_API_KEY`. Report only whether configuration exists.

## Request Contract

The repository image path uses:

```text
POST {APIMART_BASE_URL}/images/generations
Authorization: Bearer {APIMART_API_KEY}
Content-Type: application/json
```

Default body:

```json
{
  "model": "gpt-image-2",
  "prompt": "<prompt>",
  "n": 1,
  "size": "1:1"
}
```

For a reference image, add:

```json
{
  "image_urls": ["data:image/png;base64,..."]
}
```

Poll async responses with:

```text
GET {APIMART_BASE_URL}/tasks/{task_id}
```

Accept image output from `data[].url`, `data[].b64_json`, direct nested `url` fields, or async task results.

## Environment

Load environment values from process env first, then `.env.secrets.local`, `.env.local`, and `.env.example`.

Required for live generation:

- `APIMART_BASE_URL`
- `APIMART_API_KEY`

Optional:

- `APIMART_IMAGE_REQUEST_TIMEOUT_MS`

If the key or base URL is missing, stop after dry-run or explain the missing configuration. Do not ask the user to paste the key in chat.

## Prompt Rules

- Use Chinese prompts when generating project puzzle templates.
- Keep template samples square, clear, image-only, and suitable for puzzle thumbnails.
- Avoid text, watermark, UI chrome, buttons, borders, and tutorial overlays.
- Include local negative constraints in the prompt instead of relying on provider-specific negative prompt fields.

## Resources

- `scripts/generate-template-samples.mjs`: dry-run or live-generate puzzle template sample thumbnails.
- `assets/puzzle-template-prompts.json`: default prompt list consumed by the script.