use-just-bash-for-scripts
Pass
Audited by Gen Agent Trust Hub on Jul 16, 2026
Risk Level: SAFE
Full Analysis
- [SAFE]: The skill provides instructions for using 'just-bash' from Vercel Labs, a utility designed to run shell scripts in a sandboxed environment with an overlay filesystem. This is a defensive security practice intended to mitigate risks from executing untrusted code.
- [EXTERNAL_DOWNLOADS]: The skill mentions checking for and potentially installing the 'just-bash' utility. This tool is associated with Vercel, a well-known service provider, and is used here specifically for its sandboxing capabilities.
- [SAFE]: This skill addresses the attack surface for Indirect Prompt Injection by providing a sandboxed execution environment.
- Ingestion points: Shell scripts, command sequences, and untrusted snippets provided by users or generated by the agent (SKILL.md).
- Boundary markers: The skill functions as a procedural boundary by directing execution into the 'just-bash' sandbox.
- Capability inventory: Shell command execution via the 'just-bash' CLI.
- Sanitization: Relies on the 'just-bash' overlay filesystem (writes stay in memory) and default disabled network access to prevent host side effects or data exfiltration.
Audit Metadata