baoyu-cover-image

1# Cover Image Generator
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3## User Input Tools
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5When this skill prompts the user, follow this tool-selection rule (priority order):
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71. **Prefer built-in user-input tools** exposed by the current agent runtime — e.g., `AskUserQuestion`, `request_user_input`, `clarify`, `ask_user`, or any equivalent.
82. **Fallback**: if no such tool exists, emit a numbered plain-text message and ask the user to reply with the chosen number/answer for each question.
93. **Batching**: if the tool supports multiple questions per call, combine all applicable questions into a single call; if only single-question, ask them one at a time in priority order.
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11Concrete `AskUserQuestion` references below are examples — substitute the local equivalent in other runtimes.
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13## Image Generation Tools
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15Resolve the image backend in this order:
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171. **User names a backend** in the current message → use it.
182. **`preferred_image_backend`** in `EXTEND.md` names a backend available now → use it. `ask` means ask every run.
193. **Auto-select** (preference `auto`, unset, or the pinned backend is unavailable), first match wins:
20   - **Codex `imagegen`** skill is in your available skills → you are in Codex and MUST use it: `Skill` with `skill: "imagegen"`, passing the prompt file's content plus output path and aspect ratio. It outranks non-native skills such as `baoyu-image-gen`.
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