mcp-setup
Configure popular MCP servers for enhanced agent capabilities
59
49%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Risky
Do not use without reviewing
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/mcp-setup/SKILL.mdSecurity
3 findings — 1 high severity, 2 medium severity. You should review these findings carefully before considering using this skill.
W007: Insecure credential handling detected in skill instructions
What this means
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Why it was flagged
Insecure credential handling detected (high risk: 1.00). The skill explicitly asks for API keys and personal access tokens and constructs CLI commands and HTTP headers that embed those secrets verbatim (e.g., -e EXA_API_KEY=<user-provided-key>, -e GITHUB_PERSONAL_ACCESS_TOKEN=..., Authorization: Bearer <token>), forcing the LLM to handle and output secret values.
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 (high risk: 1.00). This skill's SKILL.md explicitly instructs configuring Exa Web Search, GitHub integration, and custom HTTP MCP servers (see "Step 1: Show Available MCP Servers" and the "Custom MCP Server" section), which will allow agents to fetch and act on open web content, public GitHub data, and arbitrary URLs that are untrusted and could contain instructions influencing agent behavior.
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). Yes — the skill instructs runtime fetching/execution of remote code (e.g., npx -y exa-mcp-server and npx -y @upstash/context7-mcp, docker image ghcr.io/github/github-mcp-server, and an HTTP MCP endpoint at https://api.githubcopilot.com/mcp/) which can execute remote code and/or supply prompts/instructions to agents.
- Repository
- Yeachan-Heo/oh-my-claudecode
- Commit
48ffaac
- Audited
- Security analysis
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.