Borrowing it
Nothing to install: this file belongs to mattmohandiss/cad-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/mattmohandiss/cad-mcp-server/main/AGENTS.mdgit clone --depth 1 https://github.com/mattmohandiss/cad-mcp-serverWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/mattmohandiss/cad-mcp-server/agents-md)<a href="https://agentmods.dev/instructions/mattmohandiss/cad-mcp-server/agents-md"><img src="https://agentmods.dev/badge/instructions/mattmohandiss/cad-mcp-server/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/mattmohandiss/cad-mcp-server/agents-md"><img src="https://agentmods.dev/badge/instructions/mattmohandiss/cad-mcp-server/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01765 | $0.01765 |
| Opus 5 | $0.00882 | $0.00882 |
| Sonnet 5 | $0.00353 | $0.00353 |
| Haiku 4.5 | $0.00177 | $0.00177 |
Grade A, and why
cad-mcp-server AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CAD MCP Server — Agent Guide
Local-first, read-only MCP server for STEP CAD inspection. Returns factual geometry data so AI assistants can analyze mechanical engineering questions.
Product Rules
- MCP tools return measured or parsed facts, not pre-baked engineering conclusions.
- The LLM performs interpretation; the server provides evidence.
- Keep the public tool surface small, stable, and read-only.
- Do not add CAD editing, CAM generation, arbitrary kernel execution, or manufacturability certification.
Prerequisites
- Node.js 24+
- Docker or Podman (for WASM kernel builds)
- just command runner (optional, or use npm scripts directly)
Setup
git clone https://github.com/mattmohandiss/cad-mcp-server.git
cd cad-mcp-server
just setup # or: npm install
Common Commands
| Command | Purpose |
|---|---|
just setup |
Install dependencies |
just dev |
Build and run server locally |
just test |
Run test suite (vitest) — kernel tests skip if WASM not built |
just lint |
TypeScript + Rust lint, facade validation, Prettier |
just fmt |
Format source files with Prettier |
just check |
Run lint + test (pre-push hook runs this automatically) |
just ci |
Full local pipeline: lint + tests + WASM build + tests with kernel |
just build-wasm |
Build OCCT WASM kernel (Docker) into occt/dist + occt/ts/dist |
just build |
Build optimized WASM kernel + npm tarball |
just eval |
Run LLM eval through Vercel AI Gateway (needs AI_GATEWAY_API_KEY) |
just setup-eval |
Install eval Python dependencies into .venv |
just clean |
Remove generated artifacts, deps, eval logs, eval work dirs |
just check-clean |
Verify no build artifacts remain (pre-PR check) |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 157 lines · 1,765 tokens per session scan A 479a1760d084
cad-mcp-server AGENTS.md is an instructions file published in the GitHub repository mattmohandiss/cad-mcp-server (5 stars, last pushed 2d ago), licensed MIT. It adds 1,765 tokens to every session, about $0.0088 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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