XPR Code Sandbox

# XPR Code Sandbox

Execute JavaScript code in a secure sandbox for data processing, computation, and quick expression evaluation without network or filesystem access.

## Discovery Metadata
- Category: `design`
- Framework: `ClawHub`
- Tags: `code`, `javascript`, `sandbox`, `xpr`, `execute`, `secure`, `data`, `processing`, `computation`, `quick`

## 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/xpr-code-sandbox
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/xpr-code-sandbox