Webpage Screenshot

# Webpage Screenshot

打开指定网页并截图为图片文件。在用户要求对某 URL 截图、保存网页为图片、或需要网页快照时使用。

## Discovery Metadata
- Category: `infrastructure`
- Framework: `ClawHub`
- Tags: `webpage`, `screenshot`, `url`

## 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/webpage-screenshot
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/webpage-screenshot