Copilot-Skills: Instructions file for GitHub Copilot

.github/instructions/cleanup.instructions.md

Copilot-Skills cleanup.instructions.md is an instructions file for GitHub Copilot from TheSethRose/Copilot-Skills. It costs 1,058 tokens per session, scanned C, original, MIT.

Automatic guidance for cleanup work in software projects, such as finding unused files, packages, caches, and build leftovers.

In plain words
What is it for?
Use it to review unused resources, stale dependencies, caches, and build artifacts before removing them.
Why use it?
It helps identify safe cleanup targets, respect ignored files, warn about dependency changes, and protect against accidental deletion.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is TheSethRose/Copilot-Skills's own configuration. It tells GitHub Copilot how to work on Copilot-Skills 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 Copilot-Skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to TheSethRose/Copilot-Skills. 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/TheSethRose/Copilot-Skills/main/.github/instructions/cleanup.instructions.md
Clone the repo
git clone --depth 1 https://github.com/TheSethRose/Copilot-Skills

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 Copilot-Skills cleanup.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/thesethrose/copilot-skills/cleanup/github.svg)](https://agentmods.dev/instructions/thesethrose/copilot-skills/cleanup)
Your own site
<a href="https://agentmods.dev/instructions/thesethrose/copilot-skills/cleanup"><img src="https://agentmods.dev/badge/instructions/thesethrose/copilot-skills/cleanup/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 Copilot-Skills cleanup.instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/thesethrose/copilot-skills/cleanup"><img src="https://agentmods.dev/badge/instructions/thesethrose/copilot-skills/cleanup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,058 This file is loaded in full into every session.
When invoked 1,058 The same file — it is already loaded in full.
Security scan C 1 finding. 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 $0.01058 $0.01058
Opus 5.5 $0.00423 $0.00423
Sonnet 5.5 $0.00212 $0.00212
Haiku 4.5 $0.00106 $0.00106

Measured 1mo ago against content hash f17cd48d3857, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

Copilot-Skills cleanup.instructions.md scanned grade C with 1 finding 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf node_modules/
.github/instructions/cleanup.instructions.md · 210 lines

How it starts

The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cleanup Operations - Automatic Context Instructions

Related Prompt: /cleanup

Triggers: cleanup, remove, delete, unused, stale, orphan, tidy, clean up

Context: Cleanup and Maintenance Operations

When working with files that match cleanup patterns or when user queries contain cleanup keywords, this context is automatically activated.

Default Behaviors

When user mentions "cleanup" or "unused"

  1. Suggest /cleanup skill prompt for guided cleanup workflow
  2. Analyze project for common cleanup targets
  3. Respect .gitignore patterns (never delete ignored files without confirmation)
  4. Create safety checkpoints before destructive operations

When user mentions "dependencies" or "node_modules"

  1. Check for unused dependencies in package.json, requirements.txt, etc.
  2. Suggest removal of unused packages
  3. Warn about breaking changes before removal
  4. Update lockfiles after changes

When user mentions "cache" or "build artifacts"

  1. Identify safe-to-delete cache directories
  2. Preserve development environment configurations
  3. Keep .gitignore patterns up to date

Quality Guidelines

✅ Do

  • Always ask for confirmation before deleting files
  • Show what will be deleted before executing
  • Use dry-run flags when available
  • Backup important files before cleanup
  • Update .gitignore after cleanup
  • Clean incrementally (one type at a time)

❌ Don't

  • Delete files matching .gitignore without explicit confirmation
  • Remove dependencies without checking usage
  • Clean production builds without backup
  • Delete configuration files
  • Remove version control history
  • Clean without showing file list first

Common Cleanup Targets

Safe to Remove (Usually)

# Build artifacts
dist/
build/
*.egg-info/
target/

# Cache directories
__pycache__/
.pytest_cache/
.mypy_cache/
.ruff_cache/
node_modules/.cache/
.next/
.nuxt/

# Log files
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*

# Temporary files
*.tmp
*.temp
.DS_Store
Thumbs.db

Read the full file on GitHub · 210 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.

  1. 1mo ago First seen · 210 lines · 1,058 tokens per session scan C f17cd48d3857

Subscribe to this mod's changes

Copilot-Skills cleanup.instructions.md is an instructions file published in the GitHub repository TheSethRose/Copilot-Skills (3 stars, last pushed 10mo ago), licensed MIT. It adds 1,058 tokens to every session, about $0.0042 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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