What is contrast-plus copilot-instructions.md?

A set of GitHub Copilot instructions for the contrast-plus project. It describes the project context, technology choices, and important reference information.

It helps Copilot understand the project overview, its technology stack, and the commands or references used when working in the repository.

It gives Copilot background that may not be obvious from individual files. This helps its suggestions fit the repository's structure and conventions.

How mgifford/contrast-plus configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to mgifford/contrast-plus. 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/mgifford/contrast-plus/main/.github/copilot-instructions.md

Clone the repo

git clone --depth 1 https://github.com/mgifford/contrast-plus

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/mgifford/contrast-plus/copilot-instructions/github.svg)](https://agentmods.dev/instructions/mgifford/contrast-plus/copilot-instructions)

Your own site

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

Per session 724 This file is loaded in full into every session.

When invoked 724 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 unknown 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	$0.00724	$0.00724
Opus 5.5	$0.00290	$0.00290
Sonnet 5.5	$0.00145	$0.00145
Haiku 4.5	$0.00072	$0.00072

Measured 2mo ago against content hash 7f5fc2b4967d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

contrast-plus 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 2mo 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 · 71 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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.

2mo ago First seen · 71 lines · 724 tokens per session scan A 7f5fc2b4967d

Subscribe to this mod's changes

contrast-plus copilot-instructions.md is an instructions file published in the GitHub repository mgifford/contrast-plus (11 stars, last pushed 4d ago), licensed AGPL-3.0. It adds 724 tokens to every session, about $0.0029 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.

a11y accessibility apca color-contrast color-contrast-checker color-contrast-checkers

contrast-plus copilot-instructions.md next to 6 instructions from other repositories
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contrast-plus copilot-instructions.mdmgifford/contrast-plus	Instructions file	11	4d ago	AGPL-3.0	A	724	GitHub Copilot
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contrast-plus: Instructions file for GitHub Copilot