Automate Appveyor tasks via Rube MCP (Composio). Always search tools first for current schemas.
67
53%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./composio-skills/appveyor-automation/SKILL.mdSecurity
2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.
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.
Third-party content exposure detected (high risk: 0.90). The SKILL.md mandates calling RUBE_SEARCH_TOOLS against the Rube MCP endpoint (e.g., https://rube.app/mcp / Composio toolkits) to fetch live tool schemas and recommended execution plans which the agent must read and use to select tool slugs and arguments, so untrusted third-party responses could inject instructions that materially affect subsequent tool actions.
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.
Potentially malicious external URL detected (high risk: 0.90). The skill requires connecting at runtime to the MCP server https://rube.app/mcp (via RUBE_SEARCH_TOOLS / RUBE_MANAGE_CONNECTIONS) to fetch tool schemas and recommended execution plans that directly drive agent prompts and tool execution, so this external endpoint can control agent behavior.
2790447
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