What is PixelPilot copilot-instructions.md?

A set of GitHub Copilot instructions for building web interfaces according to a defined 2026 design system. It lists required design, accessibility, responsive-layout, animation, image, theme, and interaction rules.

Use it when planning or implementing front-end pages and components, particularly when the project also contains more specific instruction files in .github/instructions/.

It keeps interface work consistent and prevents common problems such as missing loading states, inaccessible images, poor mobile layouts, and unsupported browser interactions.

How dev-lou/PixelPilot configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to dev-lou/PixelPilot. 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/dev-lou/PixelPilot/main/vscode/.github/copilot-instructions.md

Clone the repo

git clone --depth 1 https://github.com/dev-lou/PixelPilot

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/dev-lou/pixelpilot/copilot-instructions/github.svg)](https://agentmods.dev/instructions/dev-lou/pixelpilot/copilot-instructions)

Your own site

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

Per session 569 This file is loaded in full into every session.

When invoked 569 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	$0.00569	$0.00569
Opus 5.5	$0.00228	$0.00228
Sonnet 5.5	$0.00114	$0.00114
Haiku 4.5	$0.00057	$0.00057

Measured 2mo ago against content hash 69dd744586c6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

PixelPilot 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.

vscode/.github/copilot-instructions.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UI/UX 2026 — GitHub Copilot Instructions (v11)

You are a front-end expert following the UI/UX 2026 design system.

Proactive Reading Rule

Before planning or implementing any UI/UX task:

Identify relevant instruction files from .github/instructions/ based on the task
Read those files
Base your implementation on the instructions read

NON-NEGOTIABLE LAWS (always enforced)

 1. Classify design language FIRST — before any code.
 2. Brand tokens in :root once — never override per-page or inline.
 3. Never window.alert/confirm/prompt — SweetAlert2 or custom toast only.
 4. No grey placeholder boxes — Picsum/Unsplash URLs, context-matched.
 5. No localhost in any user-visible text or URL.
 6. Dark + light mode on every project — [data-theme] on <html>.
 7. Mobile-first always — design at 390px, expand outward.
 8. transition: all NEVER — specify only changed properties.
 9. Every <img>: width, height, loading, alt — no exceptions.
10. Every async state has a skeleton — never blank.
11. prefers-reduced-motion respected in all animations.
12. Only animate transform and opacity (GPU S-Tier).
13. Every interactive component handles all 10 states:
    default → hover → focus → active → loading → disabled → error → success → empty → busy
14. Never native <select>, native date input — always custom.
15. Image grids mix shapes — never all-square.
16. Min contrast: 4.5:1 body, 3:1 large text.
17. Every page has a footer with role="contentinfo".
18. All spacing on the 8px scale — 4,8,12,16,24,32,48,64,80,96,120,160px only.
19. Every empty data state shows an empty-state component.
20. Images: <picture> + AVIF source + WebP fallback.

DESIGN LANGUAGE

[ FILL IN: Luxury / Premium Modern / Minimalist / Expressive / Editorial / Warm & Human / Technical ]

KEY INSTRUCTION FILES (in .github/instructions/)

File	Load when
`uiux-tokens.instructions.md`	Always first
`uiux-components.instructions.md`	Every project
`uiux-a11y.instructions.md`	Every page
`uiux-forms.instructions.md`	Any form
`uiux-motion.instructions.md`	Any animation
`reasoning.instructions.md`	Complex tasks

Read the full file on GitHub · 52 lines

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 · 52 lines · 569 tokens per session scan A 69dd744586c6

Subscribe to this mod's changes

PixelPilot copilot-instructions.md is an instructions file published in the GitHub repository dev-lou/PixelPilot (2 stars, last pushed 7mo ago), licensed MIT. It adds 569 tokens to every session, about $0.0023 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.

CSS and styling Design and UX Frontend ai-prompts copilot cursor-rules design-system developer-tools

PixelPilot copilot-instructions.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
PixelPilot copilot-instructions.mddev-lou/PixelPilot	Instructions file	2	7mo ago	MIT	A	569	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

PixelPilot: Instructions file for GitHub Copilot