What is apigen copilot-instructions.md?

A GitHub Copilot instruction file that points to AGENTS.md for the repository’s project context, commands, tests, and coding rules.

Use it to direct Copilot to the project’s build steps, testing procedures, and coding conventions.

It keeps Copilot guidance in one shared file instead of duplicating the same instructions.

How gemyago/apigen configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to gemyago/apigen. 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/gemyago/apigen/main/.github/copilot-instructions.md

Clone the repo

git clone --depth 1 https://github.com/gemyago/apigen

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/gemyago/apigen/copilot-instructions/github.svg)](https://agentmods.dev/instructions/gemyago/apigen/copilot-instructions)

Your own site

<a href="https://agentmods.dev/instructions/gemyago/apigen/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/gemyago/apigen/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/gemyago/apigen/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/gemyago/apigen/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 69 This file is loaded in full into every session.

When invoked 69 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.

Model	Per session	Once invoked
Fable 5.1	$0.00069	$0.00069
Opus 5.5	$0.00028	$0.00028
Sonnet 5.5	$0.00014	$0.00014
Haiku 4.5	$0.00007	$0.00007

Measured 1mo ago against content hash adb47f2fdce2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

apigen 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

apigen GEMINI.md — 86% identical, 6 lines differ

.github/copilot-instructions.md · 8 lines

What it actually says

GitHub Copilot Instructions

This file redirects to the main AGENTS.md file to maintain a single source of truth.

For complete project context, build commands, testing procedures, and coding conventions, see AGENTS.md.

All instructions in AGENTS.md apply to GitHub Copilot interactions within this repository.

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.

1mo ago First seen · 8 lines · 69 tokens per session scan A adb47f2fdce2

Subscribe to this mod's changes

apigen copilot-instructions.md is an instructions file published in the GitHub repository gemyago/apigen (6 stars, last pushed 11mo ago), licensed Apache-2.0. It adds 69 tokens to every session, about $0.0003 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 2026-10-02.

Building agents Code Generation api go http openapi

apigen copilot-instructions.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
apigen copilot-instructions.mdgemyago/apigen	Instructions file	6	11mo ago	Apache-2.0	A	69	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	yesterday	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

apigen: Instructions file for GitHub Copilot