Borrowing it
Nothing to install: this file belongs to mrzroot/agentforge. 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/mrzroot/agentforge/master/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/mrzroot/agentforgeWrote 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/mrzroot/agentforge/copilot-instructions)<a href="https://agentmods.dev/instructions/mrzroot/agentforge/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/mrzroot/agentforge/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/mrzroot/agentforge/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/mrzroot/agentforge/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 | $0.00210 | $0.00210 |
| Opus 5.5 | $0.00084 | $0.00084 |
| Sonnet 5.5 | $0.00042 | $0.00042 |
| Haiku 4.5 | $0.00021 | $0.00021 |
Grade A, and why
agentforge 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
GitHub Copilot Custom Instructions
Generated by AgentForge (https://github.com/mrzroot/agentforge)
Project: agentforge
AI-assisted modern codebase powered by AgentForge
Coding Guidelines
- Write minimal, concise, and robust code. Avoid over-engineering (YAGNI).
- Follow language idioms and leverage the standard library before third-party abstractions.
- Never compromise on security, input validation, error handling, or accessibility.
- Maintain existing style, patterns, and architectural conventions across edits.
Security & Architecture
- Never hardcode API keys, secrets, credentials, or private tokens in source code or rules.
- Sanitize and validate all external inputs, request payloads, and query parameters.
- Keep modules focused, decoupled, and single-responsibility.
- Colocate tests, types, and documentation with the corresponding modules.
Testing Instructions
- Ensure all new features, edge cases, and bug fixes have automated test coverage.
- Keep tests deterministic, isolated, and fast.
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 First seen · 22 lines · 210 tokens per session scan A 0687e6380b66
agentforge copilot-instructions.md is an instructions file published in the GitHub repository mrzroot/agentforge (3 stars, last pushed 2d ago), licensed MIT. It adds 210 tokens to every session, about $0.0008 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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