steel-browser

CRITICAL E005: Suspicious download URL detected in skill instructions.

• Suspicious download URL detected (high risk: 0.80). The URLs include a direct shell installer (https://setup.steel.dev/install.sh) which the prompt encourages piping to sh—a high‑risk distribution pattern—even though docs.steel.dev appears to be a docs site and example.com is benign, so the overall set is suspicious due to the direct executable/script download.

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

• Third-party content exposure detected (high risk: 0.90). This skill explicitly instructs agents to fetch and interact with arbitrary public web pages (e.g., "steel scrape " and "steel browser navigate " in SKILL.md and the command references), so untrusted third‑party content can be ingested and influence subsequent actions.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

• Potentially malicious external URL detected (high risk: 1.00). The skill's setup step instructs executing a remote install script at runtime via "curl -sSf https://setup.steel.dev/install.sh | sh", which fetches and immediately executes remote code (https://setup.steel.dev/install.sh), constituting a runtime external dependency that runs remote code.