Borrowing it
Nothing to install: this file belongs to tony/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.
curl -O https://raw.githubusercontent.com/tony/skills/main/AGENTS.mdgit clone --depth 1 https://github.com/tony/skillsWrote 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.
[](https://agentmods.dev/instructions/tony/skills/agents-md)<a href="https://agentmods.dev/instructions/tony/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/tony/skills/agents-md/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.
<a href="https://agentmods.dev/instructions/tony/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/tony/skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.06124 | $0.06124 |
| Opus 5.5 | $0.02450 | $0.02450 |
| Sonnet 5.5 | $0.01225 | $0.01225 |
| Haiku 4.5 | $0.00612 | $0.00612 |
Grade A, and why
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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 658 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — skills
Project conventions and standards for AI-assisted development.
Project Identity
This is a public, third-party Claude Code plugin marketplace providing language-agnostic AI / agentic workflow plugins for DX efficiency. Hosted on GitHub (tony/skills), not affiliated with or endorsed by Anthropic or OpenAI.
Official Documentation References
These docs are the canonical references for the two plugin systems this marketplace targets. Consult them when authoring or reviewing plugin components.
Codex:
- Package your plugin — plugin packaging, marketplace format, local and repo marketplaces, bundled MCP servers and hooks
- Build skills — SKILL.md authoring for Codex
Claude Code:
- Plugins overview — plugin lifecycle, installation, discovery
- Plugin reference — component types, frontmatter schemas, directory structure
- Plugin marketplaces — creating and distributing a marketplace
- Marketplace reference — marketplace.json schema, plugin sources, reserved names
- Skills — skill authoring, SKILL.md format,
$ARGUMENTS - Settings — plugin settings, permissions, scopes
- Sub-agents — agent frontmatter, delegation patterns, tool restrictions
Quality gates
CI runs each check below on every pull request (ruff format as --check);
run them before committing.
Format
CI fails on unformatted files. Drop --check to rewrite them:
$ uv run ruff format --check
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.
- 2d ago Changed · +4 lines · +46 tokens per session 95cff48b9561
- 12d ago Changed · -31 lines · -492 tokens per session 97c9ca970f99
- 15d ago Changed · +14 lines · -437 tokens per session scan C → A 608bc4c4afe3
- 1mo ago First seen · 671 lines · 7,007 tokens per session scan C 1e60dcce3e0a
skills AGENTS.md is an instructions file published in the GitHub repository tony/skills (0 stars, last pushed 2d ago), licensed MIT. It adds 6,124 tokens to every session, about $0.0245 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 2026-09-03.
Other instructions, from other repositories
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).
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.