Borrowing it
Nothing to install: this file belongs to Action-Co/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/Action-Co/skills/main/AGENTS.mdgit clone --depth 1 https://github.com/Action-Co/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/action-co/skills/agents-md)<a href="https://agentmods.dev/instructions/action-co/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/action-co/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/action-co/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/action-co/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 | $0.00431 | $0.00431 |
| Opus 5.5 | $0.00172 | $0.00172 |
| Sonnet 5.5 | $0.00086 | $0.00086 |
| Haiku 4.5 | $0.00043 | $0.00043 |
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 11d 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.
What it actually says
Action Skills
This repository contains agent skills developed by The Action Company and shared publicly. Work here falls into two distinct modes. Determine which one applies before acting.
1. Demonstrating a skill
The user is walking through a skill we have built. The public skills live in plugins/<plugin>/skills/, not .agents/. When the user references a skill, look under plugins/ first — do not assume it is missing if you don't see it in .agents/.
| Skill | Location |
|---|---|
| Query Tableau Data | plugins/tableau-analytics/skills/query-tableau-data/ |
| View Tableau Dashboard | plugins/tableau-analytics/skills/view-tableau-dashboard/ |
| Tableau Semantics | plugins/tableau-analytics/skills/tableau-semantics/ |
More plugins will be added under plugins/<domain>/ over time; check that directory for the current map. The .agents/ folder holds internal skills for developing this repo and is not used during demos.
2. Developing a skill
The user is building or editing a skill in this repo. Follow CONTRIBUTING.md:
- Use the Prompt Request pattern (intent via issue, agent generates implementation)
- Follow the skill structure convention (
README.md,SKILL.md,docs/,scripts/,src/<package>/) - Use
uvfor dependency management; no dev deps in skillpyproject.toml - Write clean, typed Python with tests; run
uv run pytestbefore finishing - Update both
README.mdandSKILL.mdwhen the public interface or workflow changes - Use
[email protected]as the author/owner email everywhere it appears: skillSKILL.mdfrontmatter (metadata.authors), plugin.claude-plugin/plugin.json(author.email), and the marketplace.claude-plugin/marketplace.json(owner.email). Never use personal emails in any of these files.
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.
- 11d ago First seen · 27 lines · 431 tokens per session scan A 320ecb290ed2
skills AGENTS.md is an instructions file published in the GitHub repository Action-Co/skills (6 stars, last pushed today), licensed Apache-2.0. It adds 431 tokens to every session, about $0.0017 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 2026-10-03.
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.