by sema-lisp · MCP Server · ★ 54
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brew install helgesverre/tap/sema-lang
cargo install sema-langTaken from the project's README on GitHub. Check the security audit before running it.
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 | 54 |
| Forks | 6 |
| Language | Rust |
| Category | MCP Server |
| License | MIT |
| Quality Score | 65/100 |
| Open Issues | 11 |
| Last Updated | 2026-10-21 |
| Created | 2026-02-11 |
| Platforms | mcp, rust |
| Est. Tokens | ~27k |
Sema A Lisp where LLM agents are language primitives, not an SDK — compiled to a fast bytecode VM, shipped as a single binary. Docs · Playground · For Agents · Examples · Issues Stop rewriting the agent loop. Every LLM script grows the same scaffolding — retries, caching, cost caps, rate limits, tool dispatch, conversation state.
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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: