Borrowing it
Nothing to install: this file belongs to yuri-semenenko/ai-engineering-workspace. 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/yuri-semenenko/ai-engineering-workspace/main/copilot/workspace-template/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/yuri-semenenko/ai-engineering-workspaceWrote 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/yuri-semenenko/ai-engineering-workspace/copilot-instructions)<a href="https://agentmods.dev/instructions/yuri-semenenko/ai-engineering-workspace/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/yuri-semenenko/ai-engineering-workspace/copilot-instructions/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/yuri-semenenko/ai-engineering-workspace/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/yuri-semenenko/ai-engineering-workspace/copilot-instructions.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 | $0.00271 | $0.00271 |
| Opus 5.5 | $0.00108 | $0.00108 |
| Sonnet 5.5 | $0.00054 | $0.00054 |
| Haiku 4.5 | $0.00027 | $0.00027 |
Grade A, and why
ai-engineering-workspace 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 1mo 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
Repository Copilot Instructions
AGENTS.md at the repository root is this repository's contract and the canonical policy for every AI assistant here. Read it first. This file holds only what is specific to Copilot and must not restate the contract.
Copilot CLI and VS Code Copilot Chat both read AGENTS.md and combine it with this file rather than choosing between them, so anything repeated here is a second copy to keep in sync. Repository facts — stack, commands, architecture invariants, definition of done, safety boundaries — belong in AGENTS.md. Personal preferences, including which stack to assume when this repository is silent, belong in your own ~/.copilot/copilot-instructions.md.
Copilot-specific notes:
- Path-scoped guidance lives in
.github/instructions/*.instructions.md, selected by each file'sapplyToglobs. That mechanism is Copilot-only; the cross-tool equivalent is a nestedAGENTS.mdin the directory whose rules differ. - A few Copilot surfaces read this file but not
AGENTS.md— GitHub.com Copilot Chat is one. On such a surface, openAGENTS.mdexplicitly before assuming anything about this repository's stack, commands, or boundaries. Do not guess, and do not fall back to a generic stack.
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.
- 1mo ago Changed · +123 tokens per session c90ac3cda718
- 1mo ago First seen · 11 lines · 148 tokens per session scan A e3273dbdd612
ai-engineering-workspace copilot-instructions.md is an instructions file published in the GitHub repository yuri-semenenko/ai-engineering-workspace (4 stars, last pushed 1mo ago), licensed MIT. It adds 271 tokens to every session, about $0.0011 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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