cmux

Pass

Audited by Gen Agent Trust Hub on Apr 7, 2026

Risk Level: SAFECOMMAND_EXECUTIONREMOTE_CODE_EXECUTIONPROMPT_INJECTION
Full Analysis
  • [COMMAND_EXECUTION]: The skill utilizes the cmux CLI to orchestrate terminal panes and performs a directory listing check using ls to identify missing companion skills for the user.
  • [REMOTE_CODE_EXECUTION]: Includes instructions for installing related developer tools from the vendor's repository using the standard npx command.
  • [PROMPT_INJECTION]: The agent is instructed to use a specific emoji (๐Ÿงข) in its initial response. Additionally, the skill's data-ingestion capabilities create a surface for indirect prompt injection:
  • Ingestion points: Reads terminal output via cmux read-screen and web page content via cmux browser snapshot.
  • Boundary markers: Absent; no delimiters or ignore instructions are provided to isolate processed external data.
  • Capability inventory: Provides significant execution capabilities, including sending arbitrary shell commands to terminal panes and evaluating JavaScript in browser surfaces.
  • Sanitization: Absent; no sanitization or validation of the external content is implemented.
Audit Metadata
Risk Level
SAFE
Analyzed
Apr 7, 2026, 03:03 PM
Security Audit โ€” agent-trust-hub โ€” cmux