Feishu Whiteboard Extract

# Feishu Whiteboard Extract

从飞书白板（Whiteboard）中提取所有图片节点的 file_token，用于后续下载/OCR/归档。文档类补充能力。

## Discovery Metadata
- Category: `experimental`
- Framework: `ClawHub`
- Tags: `whiteboard`, `feishu`, `extract`, `file`, `token`, `ocr`

## Agent Execution Policy

This listing is **discovery metadata only**. Canonical instructions are maintained by ClawHub.

### Before Executing Actions

1. **Fetch canonical instructions** from: https://clawhub.ai/skill/feishu-whiteboard-extract
2. **Parse the skill page** for setup, usage, and input/output requirements.
3. **Only proceed** after successfully loading and understanding the full instructions.

### If Fetch Fails

- Return `instruction_unavailable` with reason.
- Do **not** attempt to infer or improvise execution steps from this metadata alone.

## Source

- ClawHub listing: https://clawhub.ai/skill/feishu-whiteboard-extract