Agent Browser

Pass

Audited by Gen Agent Trust Hub on Mar 11, 2026

Risk Level: SAFEEXTERNAL_DOWNLOADSCOMMAND_EXECUTIONPROMPT_INJECTIONCREDENTIALS_UNSAFE
Full Analysis
  • [EXTERNAL_DOWNLOADS]: The skill instructs the user to install the agent-browser package from npm or clone it from the official Vercel Labs GitHub repository. These are identified as trusted sources.
  • [PROMPT_INJECTION]: The skill is vulnerable to indirect prompt injection because it processes content from arbitrary URLs. Ingestion points: Web content is ingested via agent-browser snapshot and agent-browser get text. Boundary markers: None are present to prevent the agent from following instructions embedded in web pages. Capability inventory: The skill allows for JavaScript execution (eval), session management (state save/load), and file uploads, which could be abused if an injection occurs. Sanitization: No content sanitization is described.
  • [CREDENTIALS_UNSAFE]: The skill includes commands like agent-browser cookies and agent-browser state save auth.json that allow the agent to read and export session tokens and cookies. While necessary for browser automation, these represent a high-value target for data exfiltration.
  • [COMMAND_EXECUTION]: The skill utilizes a powerful eval command which permits the execution of arbitrary JavaScript within the browser context, providing extensive control over the web environment.
Audit Metadata
Risk Level
SAFE
Analyzed
Mar 11, 2026, 12:46 PM