agent-reach

Fail

Audited by Gen Agent Trust Hub on Apr 4, 2026

Risk Level: HIGHEXTERNAL_DOWNLOADSREMOTE_CODE_EXECUTIONCOMMAND_EXECUTIONDATA_EXFILTRATIONPROMPT_INJECTION
Full Analysis
  • [REMOTE_CODE_EXECUTION]: The skill contains a Preflight script that automatically downloads and installs the agent-reach tool from a GitHub ZIP archive using pipx. This script is intended to run before every use, providing a persistent vector for code execution from an unverified repository (Panniantong/agent-reach).
  • [EXTERNAL_DOWNLOADS]: The skill installs additional scraping components and MCP servers from public registries and GitHub repositories, including mcp-server-weibo and douyin-mcp-server.
  • [DATA_EXFILTRATION]: The skill provides automated commands to extract browser cookies (e.g., agent-reach configure --from-browser chrome) for multiple platforms. This grants the agent access to sensitive private user data that could be mishandled or exfiltrated.
  • [COMMAND_EXECUTION]: The skill relies on the Bash tool to execute numerous external CLI utilities such as yt-dlp, gh, xreach, and mcporter to perform platform scraping and account interactions.
  • [PROMPT_INJECTION]: The skill has a significant exposure to indirect prompt injection as it processes untrusted content from over 15 platforms (including social media and web pages). Malicious instructions in this data could influence agent behavior.
  • Ingestion points: Data enters through agent-reach, curl, yt-dlp, and various external MCP servers defined in SKILL.md.
  • Boundary markers: No explicit markers or delimiters are used in the instructions to isolate platform content from the system context.
  • Capability inventory: The agent has access to powerful tools including Bash, Write, and Edit.
  • Sanitization: No sanitization or validation of external content is mentioned before it is processed by the agent.
Recommendations
  • HIGH: Downloads and executes remote code from: https://api.github.com/repos/Panniantong/Agent-Reach/releases/latest - DO NOT USE without thorough review
Audit Metadata
Risk Level
HIGH
Analyzed
Apr 4, 2026, 09:52 AM