What is agents-skills AGENTS.md?

A set of repository instructions for a public collection of AI coding skills and agents. It explains the repository layout, the two kinds of skill, and how shared instructions work across coding tools.

Use it when authoring or reviewing skills and agent instructions intended for tools such as Claude Code, GitHub Copilot, or Cursor.

It helps contributors keep reusable configuration accurate, generic, and free of private project details.

How skyfox675/agents-skills configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to skyfox675/agents-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/skyfox675/agents-skills/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/skyfox675/agents-skills

Made for: Claude Code, Codex, OpenCode.

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/skyfox675/agents-skills/agents-md.svg)](https://agentmods.dev/instructions/skyfox675/agents-skills/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/skyfox675/agents-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/skyfox675/agents-skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 1,726 This file is loaded in full into every session.

When invoked 1,726 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	$0.01726	$0.01726
Opus 5	$0.00863	$0.00863
Sonnet 5	$0.00345	$0.00345
Haiku 4.5	$0.00173	$0.00173

Measured 3d ago against content hash 3bd8af3f3ffb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

agents-skills 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 3d 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 · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Shared instructions for AI coding tools (Cursor, GitHub Copilot, and any tool honoring AGENTS.md). Claude Code uses CLAUDE.md, which carries the same guidance — keep the two in sync; this file is the tool-neutral mirror.

What this repository is

A public, shareable collection of AI toolchains — Skills and Agents — meant to be consumed by others across multiple AI coding tools (Claude Code, GitHub Copilot, Cursor). It is a content/config repo: no application code, no build step, no test runner. "Correctness" means each artifact is valid for its target tool and works when dropped into a consumer's environment.

Because it is public and reusable, every artifact must be clean of personal and prior-project data: no employer names, internal URLs, ticket IDs, secrets, private file paths, or learnings that only make sense inside one codebase. Keep learnings isolated — phrased generically so they apply anywhere.

Primary goal: extreme token savings at the highest practical accuracy. Every authored skill operates in caveman mode, and model spend is tiered (cheapest capable model per task, mechanical work offloaded to a cheap-tier subagent, premium reserved for operator-gated hard reasoning) — see MODEL-DEFAULTS.md.

Repository layout

.claude/skills/<skill-name>/SKILL.md — one directory per skill; YAML frontmatter (name, description) + body. Supporting files (references/, scripts) alongside.
.claude/agents/<agent-name>.md — one file per agent; frontmatter (name, description, tools, optional model) + system prompt. Ships 16 tiered worker agents (scout cheap; builder/reviewer/implementer/pr-rescuer/diagnostician/verifier/spelunker/design-mapper workhorse — these the commands dispatch — plus the pr-dispatcher/pr-comments/pr-checks/pr-cleanup single-lane PR watchers and the ci-speed-hunter/ci-flake-hunter continuous CI lanes and the branch-ff fast-forward lane, all run via /loop). Mirrored to Cursor (.cursor/agents/), Copilot (.github/agents/*.agent.md), Kiro (.kiro/agents/) and OpenCode (.opencode/agents/) via make sync-agents; never hand-edit the mirrors. Skills are exposed to Kiro and OpenCode (same Agent Skills format) as symlinks .kiro/skills / .opencode/skills → .claude/skills via make sync-skills.
.claude-plugin/marketplace.json + plugins/agents-skills/ (Claude Code) and .cursor-plugin/marketplace.json + plugins/agents-skills-cursor/ (Cursor) — this repo is its own plugin marketplace for both ecosystems. The plugin payload is generated from .claude/{skills,agents,commands} via make build-plugin; never hand-edit it. Released by .github/workflows/release-plugin.yml as CalVer YYYY.M.D.N, tagged v<version>, with a full-plugin zip + per-skill zips.
.claude/settings.json — Claude Code config (model: opus, includeCoAuthoredBy: false).
CLAUDE.md — Claude Code's copy of this guidance.
README.md — human entry point.
GLOSSARY.md — the repo's vocabulary (slot, dispatcher, watcher, hunting, ci-speed, flake). The distinctions are load-bearing.

Read the full file on GitHub · 62 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.

3d ago First seen · 62 lines · 1,726 tokens per session scan A 3bd8af3f3ffb

Subscribe to this mod's changes

agents-skills AGENTS.md is an instructions file published in the GitHub repository skyfox675/agents-skills (10 stars, last pushed 6d ago), licensed MIT. It adds 1,726 tokens to every session, about $0.0086 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 2026-09-03.

Building agents

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

agents-skills: Instructions file for Claude Code