Borrowing it
Nothing to install: this file belongs to RorroRojas3/awesome-claude-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/RorroRojas3/awesome-claude-copilot/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/RorroRojas3/awesome-claude-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/rorrorojas3/awesome-claude-copilot/copilot-instructions)<a href="https://agentmods.dev/instructions/rorrorojas3/awesome-claude-copilot/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/rorrorojas3/awesome-claude-copilot/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/rorrorojas3/awesome-claude-copilot/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/rorrorojas3/awesome-claude-copilot/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 | $0.01714 | $0.01714 |
| Opus 5.5 | $0.00686 | $0.00686 |
| Sonnet 5.5 | $0.00343 | $0.00343 |
| Haiku 4.5 | $0.00171 | $0.00171 |
Grade A, and why
awesome-claude-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 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.
How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository instructions for GitHub Copilot
Reusable standards for C#/.NET back ends and Angular front ends. This repository contains no application code — it ships GitHub Copilot configuration under .github/: these repository instructions, path-scoped instructions (instructions/), custom agents (agents/), and agent skills (skills/). Follow these instructions for all C# and Angular work.
Communication & comments (always)
Responses
- Lead with the answer or the change. No preamble, no filler, no restating the request.
- Do not re-summarize a plan or diff the user already saw; report only what changed or went wrong.
- Match length to substance — a one-line answer is a complete answer.
Code comments
- Comment only what code cannot say: why a decision was made, constraints, non-obvious invariants, workarounds with links.
- Never narrate what code does. No per-function comment quota. No change-narration comments ("added X", "now uses Y").
- XML doc comments on public APIs are API documentation, not comments — that standard stands.
C# coding standards (always)
Full standards live in instructions/csharp.instructions.md (auto-applies to *.cs). The always-on core:
- Target the latest C# version (currently C# 14); honor
.editorconfig; prefer pattern matching, switch expressions, andnameof(...). - Prefer primary constructors; capture each injected dependency into a
private readonly_camelCasefield and use the field in method bodies. - Prefer collection expressions (
[],[1, 2, 3],[.. items]) overnew List<T>(),new T[] { }, orArray.Empty<T>(). - PascalCase for types, methods, and public members;
_camelCaseprivate fields; camelCase locals and parameters;I-prefixed interfaces. - Declare variables non-nullable; validate
nullat entry points only; useis null/is not null— never== null/!= null. - Suffix async methods with
Async; never block with.Result,.Wait(), or.GetAwaiter().GetResult(); noasync voidoutside event handlers; flow aCancellationTokenthrough long-running operations. - Centralize error handling; return errors as Problem Details (RFC 9457). Never log PII or secrets; prefer
DefaultAzureCredential+ Azure Key Vault / Managed Identity over secrets in code or config. - XML doc comments on all public APIs.
- xUnit tests in a
[ProjectName].Testsproject, namedMethodName_Scenario_ExpectedBehavior; Arrange-Act-Assert structure but no// Arrange/// Act/// Assertcomments. - When reviewing, make only high-confidence suggestions; comment on why a non-obvious design decision was made.
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 · 78 lines · 1,714 tokens per session scan A a99367f41f0e
awesome-claude-copilot copilot-instructions.md is an instructions file published in the GitHub repository RorroRojas3/awesome-claude-copilot (0 stars, last pushed 26d ago), licensed MIT. It adds 1,714 tokens to every session, about $0.0069 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 2026-09-01.
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