Guide for setup Context7 MCP server to load documentation for specific technologies.
45
32%
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 ./plugins/mcp/skills/setup-context7-mcp/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's required workflow (Step 2) explicitly directs the agent to load a public GitHub raw URL (https://raw.githubusercontent.com/upstash/context7/refs/heads/master/README.md) and to search Context7 MCP for documentation, meaning it fetches and interprets untrusted third-party content that can influence setup 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: 1.00). The skill explicitly instructs at runtime to load https://raw.githubusercontent.com/upstash/context7/refs/heads/master/README.md and use that fetched content to guide the setup (i.e., the external file directly controls agent instructions and is treated as a required dependency).
dedca19
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