Borrowing it
Nothing to install: this file belongs to armpro24-blip/cad-cae-copilot. 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/armpro24-blip/cad-cae-copilot/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/armpro24-blip/cad-cae-copilotWrote 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/armpro24-blip/cad-cae-copilot/copilot-instructions)<a href="https://agentmods.dev/instructions/armpro24-blip/cad-cae-copilot/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/armpro24-blip/cad-cae-copilot/copilot-instructions.svg" alt="Measured on agentmods" 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 | $0.00323 | $0.00323 |
| Opus 5 | $0.00161 | $0.00161 |
| Sonnet 5 | $0.00065 | $0.00065 |
| Haiku 4.5 | $0.00032 | $0.00032 |
Grade A, and why
cad-cae-copilot copilot-instructions.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 8d 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
GitHub Copilot — aieng Workspace
The full agent guide is the canonical AGENTS.md at the workspace
root. Read it before acting.
Essentials
- Drive the workbench via the
aieng-workbenchMCP server (configured in.vscode/mcp.jsonin this repo). If it is not in your tool list, connect to it before doing anything else. - First calls:
aieng.agent_readme→aieng.list_projects→aieng.agent_context. - Do NOT browse
aieng/src/to learn capabilities — it is a legacyFakeBackend. The real CAD engine iscad.execute_build123d(build123d / OpenCASCADE). - Do NOT diagnose the backend with
pylanceRunCodeSnippet, subprocess, or psutil. If the backend athttp://127.0.0.1:8000is down, ask the user to start it (conda activate aieng311 && uvicorn app.main:app --reload --port 8000fromaieng-ui/backend). - Before reviewing a PR — including your own, before opening it — read
aieng.guide {topic: "review"}. It names the six defect patterns this codebase actually produces, each with the question that detects it and the measured instance behind it. Every one of them shipped through green CI.
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.
- 8d ago First seen · 20 lines · 323 tokens per session scan A bde3c335254e
cad-cae-copilot copilot-instructions.md is an instructions file published in the GitHub repository armpro24-blip/cad-cae-copilot (57 stars, last pushed today), licensed MIT. It adds 323 tokens to every session, about $0.0016 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 2026-08-30.
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