by modelcontextprotocol · MCP Server · ★ 945
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None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →
The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.
| Stars | 945 |
| Forks | 143 |
| Language | Ruby |
| Category | MCP Server |
| Quality Score | 74/100 |
| Open Issues | 15 |
| Last Updated | 2026-11-07 |
| Created | 2025-02-27 |
| Platforms | mcp, ruby |
| Est. Tokens | ~24k |
MCP Ruby SDK The official Ruby SDK for Model Context Protocol servers and clients. Installation Add this line to your application's Gemfile: And then execute: Or install it yourself as: You may need to add additional dependencies depending on which features you wish to access. Building an MCP Server The class is the core component that handles JSON-RPC requests and responses.
These tools work well together with ruby-sdk for enhanced workflows:
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Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.
The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.
Sources & who's responsible: