agent-ready: Instructions file for GitHub Copilot

.github/copilot-instructions.md

agent-ready copilot-instructions.md is an instructions file for GitHub Copilot from agent-next/agent-ready. It costs 168 tokens per session, scanned A, original, MIT.

Repository instructions for a strict TypeScript project running on Node.js 20 or newer. They define coding style, testing practices, local-only scanning, Git rules, and the commands used for checks and builds.

In plain words
What is it for?
Use them when changing agent-ready source code, types, fixtures, tests, formatting, linting, builds, or commit preparation.
Why use it?
They make contributions consistent and reduce errors caused by unchecked types, stale tests, unwanted network calls, or incomplete verification. They also require related tests to be updated with code changes.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is agent-next/agent-ready's own configuration. It tells GitHub Copilot how to work on agent-ready itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agent-ready configures →

Reuse

Borrowing it

Nothing to install: this file belongs to agent-next/agent-ready. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/agent-next/agent-ready/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/agent-next/agent-ready

Made for: GitHub Copilot.

Wrote 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.

agentmods badge for agent-ready copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/agent-next/agent-ready/copilot-instructions/github.svg)](https://agentmods.dev/instructions/agent-next/agent-ready/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/agent-next/agent-ready/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/agent-next/agent-ready/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.

agentmods 80×15 button for agent-ready copilot-instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/agent-next/agent-ready/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/agent-next/agent-ready/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 168 This file is loaded in full into every session.
When invoked 168 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00168 $0.00168
Opus 5.5 $0.00067 $0.00067
Sonnet 5.5 $0.00034 $0.00034
Haiku 4.5 $0.00017 $0.00017

Measured 1mo ago against content hash 914815fcc564, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-ready 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.

.github/copilot-instructions.md · 12 lines

What it actually says

TypeScript project using Node 20+ with strict mode enabled.

Commands: npm test (152 tests), npm run check (typecheck + lint + format), npm run build (tsc).

Code style: kebab-case files, PascalCase interfaces, camelCase functions. Interfaces over types. Avoid any, use unknown. Export types from src/types.ts.

Testing: Node built-in test runner via tsx --test. Fixtures in test/fixtures/. Always run tests after changes and update tests in the same pass as code changes.

Git: Atomic commits with semantic prefixes (feat/fix/docs/chore). Run npm run check before committing.

Do not add external API calls — all scanning must remain local. Do not modify src/types.ts without updating all consumers.

Changes

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.

  1. 1mo ago First seen · 12 lines · 168 tokens per session scan A 914815fcc564

Subscribe to this mod's changes

agent-ready copilot-instructions.md is an instructions file published in the GitHub repository agent-next/agent-ready (35 stars, last pushed yesterday), licensed MIT. It adds 168 tokens to every session, about $0.0007 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 2026-08-30.

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