Borrowing it
Nothing to install: this file belongs to FASTPROD/ContextEngine. 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/FASTPROD/ContextEngine/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/FASTPROD/ContextEngineWrote 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/fastprod/contextengine/copilot-instructions)<a href="https://agentmods.dev/instructions/fastprod/contextengine/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/fastprod/contextengine/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/fastprod/contextengine/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/fastprod/contextengine/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 | $0.15328 | $0.15328 |
| Opus 5.5 | $0.06131 | $0.06131 |
| Sonnet 5.5 | $0.03066 | $0.03066 |
| Haiku 4.5 | $0.01533 | $0.01533 |
Grade B, and why
ContextEngine copilot-instructions.md scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
| `src/install-claude-hook.ts` | `install-claude-hook` / `uninstall-claude-hook`: the emit hooks and the Stop gate in `~/.claude/settings.json`; commands compared by expanded path (`$HOME`, `${HOME}`, `~`), own duplicate Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- Health: `curl https://api.compr.ch/contextengine/health` -> `{"status":"healthy","deltaModules":3,"activeLicenses":1,"stripeEnabled":true}` The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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 · +47 tokens per session 31e8f819957d
- 1mo ago Changed · +1 lines · +100 tokens per session scan A → B fdd81ce4eb73
- 2mo ago Changed · +3 lines · +300 tokens per session 9c6c568559f2
- 2mo ago First seen · 552 lines · 14,881 tokens per session scan A a7dcb8e8dc40
ContextEngine copilot-instructions.md is an instructions file published in the GitHub repository FASTPROD/ContextEngine (3 stars, last pushed 1mo ago), with no licence file. It adds 15,328 tokens to every session, about $0.0613 per session on Opus 5.5. A static security scan graded it B with 2 findings (reads agent configuration directories, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
ContextEngine copilot-instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| ContextEngine copilot-instructions.mdFASTPROD/ContextEngine | Instructions file | 3 | 1mo ago | none | B | 15,328 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |