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 | $0.00333 | $0.00333 |
| Opus 5.5 | $0.00133 | $0.00133 |
| Sonnet 5.5 | $0.00067 | $0.00067 |
| Haiku 4.5 | $0.00033 | $0.00033 |
Grade A, and why
cad-mcp-server AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 16d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Geometry MCP Contributor Instructions
- Keep the public surface focused on
inspect,find_entities,measure, anddiff. Return measured facts, not manufacturing approval or design intent. - Preserve read-only STEP handling, strict schemas, revision checks, and explicit entity ID schemes. Do not add arbitrary kernel/code execution.
- Use strict TypeScript, ESM imports with
.jsextensions, single quotes, and existing Prettier/oxlint conventions. - Prefer
justrecipes. Runjust checkfor source changes; usejust ciand configured native tests for sidecar-sensitive changes. .envrcactivates the flake; rundirenv allowafter changing it. Server logs go to stderr as pino JSON;MCP_LOG_LEVELandMCP_LOG_FORMATtune them.- Keep tests, fixtures, build inputs, and required documentation server-local.
- Never advertise the workspace
contracts/schemas as a tooloutputSchema: they use cross-file$ref, which MCP clients must not dereference. Advertised schemas must be self-contained. See ENGINEERING-ARTIFACT-CONTRACT.md §Relationship to MCP. - Use conventional commits; do not manually bump release-managed versions, edit generated changelog history, or publish outside the release workflow.
- Native build outputs are generated artifacts; do not commit them.
See development for commands, packaging, and release details.
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.
- 16d ago Changed · -136 lines · -1,596 tokens per session 8157ec825d73
- 28d ago Changed · +2 lines · +63 tokens per session e1d76d6eedfa
- 1mo ago Changed · +1 lines · +101 tokens per session b0310cf469dd
- 2mo 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 (7 stars, last pushed 10d ago), licensed MIT. It adds 333 tokens to every session, about $0.0013 per session on Opus 5.5. 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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