Borrowing it
Nothing to install: this file belongs to gpu7/vCFD. 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/gpu7/vCFD/master/AGENTS.mdgit clone --depth 1 https://github.com/gpu7/vCFDWrote 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/gpu7/vcfd/agents-md)<a href="https://agentmods.dev/instructions/gpu7/vcfd/agents-md"><img src="https://agentmods.dev/badge/instructions/gpu7/vcfd/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/gpu7/vcfd/agents-md"><img src="https://agentmods.dev/badge/instructions/gpu7/vcfd/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 | $0.02521 | $0.02521 |
| Opus 5.5 | $0.01008 | $0.01008 |
| Sonnet 5.5 | $0.00504 | $0.00504 |
| Haiku 4.5 | $0.00252 | $0.00252 |
Grade C, and why
vCFD AGENTS.md scanned grade C with 1 finding 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 7d 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
Grok permission rules in `.grok/config.toml` deny reads of `.env`, keys, and `deploy/aws/out/`. They also deny `rm -rf`, force-push, and a direct push to `master` or `main`. `delete_case` and `clean_case` are ask rules; How it starts
The opening of the file, as written. The whole thing — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — vCFD
Project rules for AI coding agents (Grok, Claude, Cursor, and others) working in this repository.
Keep this file actionable. Prefer links to README.md, docs/, and SECURITY.md over duplicating long docs.
Adapted from the agent-bitcoin agent rules. Payment, Lightning, LND, and mainnet-wallet personas are omitted: this repo is an OpenFOAM controller, not a wallet.
1. Project overview and goals
vCFD is a voice-driven CFD controller. A Grok voice agent calls MCP tools that set up and run OpenFOAM cases, then summarize results and export data for ParaView.
Goals
- Expose a small, speakable MCP tool surface for case setup, meshing, solving, and export.
- Keep long solver runs async (
job_id, thenget_job_status). - Stay secure by default: no secrets in git, path-jailed cases, confirm flags on destructive tools, bearer auth on remote HTTP MCP.
Non-goals (unless explicitly requested)
- Forking or patching OpenFOAM. vCFD launches OpenFOAM and edits case dictionaries.
- Silent EC2 launch, teardown, or security-group changes.
- Deleting or cleaning a case without
confirm=true. - New physics templates beyond what the task asks for.
Key paths
| Path | Role |
|---|---|
src/vcfd/mcp_server/server.py |
FastMCP tools |
src/vcfd/mcp_server/foam_runner.py |
mock / docker / native OpenFOAM |
src/vcfd/mcp_server/jobs.py |
Async job records under .vcfd/jobs/ |
src/vcfd/config.py |
VCFD_* settings |
src/vcfd/analytics/poiseuille.py |
Hagen–Poiseuille checks |
cases/templates/hagen_poiseuille/ |
Only built-in case template |
cases/workspace/ |
Runtime cases (gitignored) |
tests/ |
pytest against mock OpenFOAM |
deploy/aws/ |
EC2 launch, Caddy, status, teardown |
prompts/ |
Voice agent system prompt |
scripts/ |
stdio dev server, Docker e2e, ParaView S3 helpers |
.grok/config.toml |
Project MCP server + permission allow/ask/deny |
.grok/sandbox.toml |
Opt-in sandbox profile vcfd |
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.
- 7d ago First seen · 259 lines · 2,521 tokens per session scan C aa30b9380ad4
vCFD AGENTS.md is an instructions file published in the GitHub repository gpu7/vCFD (0 stars, last pushed yesterday), licensed MIT. It adds 2,521 tokens to every session, about $0.0101 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-13.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
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vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.