hosted-agents
This skill should be used when designing hosted or background agent infrastructure: sandboxed execution, remote coding environments, warm pools, session persistence, multiplayer collaboration, self-spawning agents, or Modal-style sandboxes.
72
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Advisory
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Security
2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.
W011: Third-party content exposure detected (indirect prompt injection risk)
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
Third-party content exposure detected (medium risk: 0.65). Outsider free text can enter the LLM context via runtime client messages (e.g., Slack/Web/Chrome chat content) that the system forwards into the sandbox/agent prompt; those messages are authored by non-operating users and are not chosen by the operating user.
W012: Unverifiable external dependency detected (runtime URL that controls agent)
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
Potentially malicious external URL detected (high risk: 0.90). The skill's runtime code examples perform git clones like "git clone https://x-access-token:{token}@github.com/{repo_url}" and then run install/build commands (npm install, npm run build), which fetch external GitHub repository content at runtime and execute that code inside sandboxes.
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c578e85
- Audited
- Security analysis
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