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claude-skills-for-copilot: Instructions file for Claude Code

AGENTS.md

claude-skills-for-copilot AGENTS.md is an instructions file for Claude Code, Codex, OpenCode from euxx/claude-skills-for-copilot. It costs 831 tokens per session, scanned A, original, MIT.

Project instructions for maintaining a collection of coding-agent skills adapted from other skill repositories. They describe conventions, checks after changes, and how to track upstream updates.

In plain words
What is it for?
Use them when changing this skill collection, running its required checks, reviewing upstream changes, or recording which skills were evaluated and skipped.
Why use it?
They give contributors a consistent way to verify changes and know which external versions the local skills came from.

Instructions file for Claude CodeCodexOpenCode

Written for Claude Code and Codex and OpenCode: ${CLAUDE_PLUGIN_DATA} variable, but also the file is AGENTS.md. Also seen: reads .claude/ paths; mentions Claude Code; mentions Codex.

This is euxx/claude-skills-for-copilot's own configuration. It tells Claude Code, Codex and OpenCode how to work on claude-skills-for-copilot 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 claude-skills-for-copilot configures →

not rated 4repo 2mo ago A scan 831 tokens original MIT
View source ↗ euxx/claude-skills-for-copilot
Reuse

Borrowing it

Nothing to install: this file belongs to euxx/claude-skills-for-copilot. 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/euxx/claude-skills-for-copilot/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/euxx/claude-skills-for-copilot

Made for: Claude Code, Codex, OpenCode.

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Per session 831 This file is loaded in full into every session.
When invoked 831 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 $0.00831 $0.00831
Opus 5 $0.00415 $0.00415
Sonnet 5 $0.00166 $0.00166
Haiku 4.5 $0.00083 $0.00083

Measured 9d ago against content hash 03cc50f5819f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

claude-skills-for-copilot AGENTS.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 9d 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.

AGENTS.md · 49 lines

How it starts

The opening of the file, as written. The whole thing — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Conventions

After Making Changes

After modifying code, run:

  • npm run ci — syntax + lint + format + tests

See DEVELOPMENT.md for all available scripts.

See RELEASE.md for the release process.

Upstream Adaptation Tracking

Skills are adapted from two upstream repos:

  • Anthropic: https://github.com/anthropics/claude-plugins-official — local mirror at ~/projects/claude-plugins-official
  • OpenAI: https://github.com/openai/skills — local mirror at ~/projects/skills

Last upstream check: 2026-06-30

  • Anthropic checked up to commit cd3ca5b
  • OpenAI checked up to commit 49f948f

How to check for updates

  1. Sync local mirrors — cd ~/projects/claude-plugins-official && git pull --ff-only and the same for ~/projects/skills. Confirm git status -sb shows no drift before comparing.
  2. List commits since last check — git log --oneline <last-sha>..HEAD in each mirror.
  3. Filter to adapted skills — restrict the log with -- <paths> for plugins/folders that map to skills in this repo. Current mapping:
    • plugins/pr-review-toolkit/ → code-review, comment-analyzer, silent-failure-hunter, test-analyzer, type-design-analyzer, review-toolkit
    • plugins/code-simplifier/ → code-simplifier
    • plugins/feature-dev/ → feature-dev
    • plugins/frontend-design/ → frontend-design, frontend-layout
    • plugins/mcp-server-dev/ → mcp-server-dev
    • Any OpenAI skills/.curated/<name>/ whose name appears under skills/ here.
  4. Inspect each candidate commit — read the diff (git show <sha> -- <path>) and decide whether it touches content we actually carry (our SKILL.md files are often condensed single-file versions, so deep-reference-only changes may be no-ops).
  5. Look for newly added skills — git log --diff-filter=A --name-only --pretty=format: <last-sha>..HEAD -- 'plugins/*/skills/*/SKILL.md' (Anthropic) and the equivalent under skills/.curated/ (OpenAI). Evaluate each new skill for VS Code Copilot fit before adapting.
  6. Record the new SHAs and date above after the check completes, regardless of whether any sync was needed.

Read the full file on GitHub · 49 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. 9d ago First seen · 49 lines · 831 tokens per session scan A 03cc50f5819f

Subscribe to this mod's changes

claude-skills-for-copilot AGENTS.md is an instructions file published in the GitHub repository euxx/claude-skills-for-copilot (4 stars, last pushed 2mo ago), licensed MIT. It adds 831 tokens to every session, about $0.0042 per session on Opus 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.

anthropicclaudecopilot-skillsgithub-copilotvscodevscode-extension
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