app.spectrum.analyzer: Instructions file for GitHub Copilot

.github/instructions/css.instructions.md

app.spectrum.analyzer css.instructions.md is an instructions file for GitHub Copilot from polarity/app.spectrum.analyzer. It costs 92 tokens per session, scanned A, original, MIT.

Project instructions for a browser-based spectrum analyzer, a tool that displays the frequency content of sound. They define how the CSS should organize the app’s layout and visual styles.

In plain words
What is it for?
Use them when editing the analyzer’s CSS, shared colors, borders, spacing, corner shapes, or layout.
Why use it?
They help keep presentation rules consistent and preserve the app’s wide, canvas-focused layout during visual changes.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is polarity/app.spectrum.analyzer's own configuration. It tells GitHub Copilot how to work on app.spectrum.analyzer 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 app.spectrum.analyzer configures →

Reuse

Borrowing it

Nothing to install: this file belongs to polarity/app.spectrum.analyzer. 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/polarity/app.spectrum.analyzer/master/.github/instructions/css.instructions.md
Clone the repo
git clone --depth 1 https://github.com/polarity/app.spectrum.analyzer

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 app.spectrum.analyzer css.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/polarity/app.spectrum.analyzer/css/github.svg)](https://agentmods.dev/instructions/polarity/app.spectrum.analyzer/css)
Your own site
<a href="https://agentmods.dev/instructions/polarity/app.spectrum.analyzer/css"><img src="https://agentmods.dev/badge/instructions/polarity/app.spectrum.analyzer/css/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 app.spectrum.analyzer css.instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/polarity/app.spectrum.analyzer/css"><img src="https://agentmods.dev/badge/instructions/polarity/app.spectrum.analyzer/css.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 92 This file is loaded in full into every session.
When invoked 92 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 $0.00092 $0.00092
Opus 5.5 $0.00037 $0.00037
Sonnet 5.5 $0.00018 $0.00018
Haiku 4.5 $0.00009 $0.00009

Measured 2mo ago against content hash 67d48f204fc9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

app.spectrum.analyzer css.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/instructions/css.instructions.md · 11 lines

What it actually says

CSS Instructions

  • Keep layout and presentation in CSS rather than inline HTML styles or JavaScript-generated style strings.
  • When visual cleanup starts, move shared colors, borders, spacing, and radii into semantic custom properties.
  • Preserve the spectrogram app's wide canvas-first composition unless the task explicitly changes layout.
  • Reuse shared tokens before adding new constants.
  • Keep property ordering readable and consistent across rules.
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. 2mo ago First seen · 11 lines · 92 tokens per session scan A 67d48f204fc9

Subscribe to this mod's changes

app.spectrum.analyzer css.instructions.md is an instructions file published in the GitHub repository polarity/app.spectrum.analyzer (21 stars, last pushed 7mo ago), licensed MIT. It adds 92 tokens to every session, about $0.0004 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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