agent-skills: Instructions file for Codex

AGENTS.md

agent-skills AGENTS.md is an instructions file for Codex, OpenCode from zapier/agent-skills. It costs 955 tokens per session, scanned A, original, MIT.

Repository instructions for AI coding agents that explain how to create and organize reusable skills in Zapier’s agent-skills collection. It covers required files, folders, naming, scripts, and supporting documents.

In plain words
What is it for?
Use it when adding or updating a skill in this repository, deciding where files belong, or checking the required format for SKILL.md, scripts, references, and shared code.
Why use it?
It gives contributors one set of repository rules to follow, reducing mistakes in structure, naming, and packaging. It also explains how skills are indexed and installed.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Claude Code; mentions AGENTS.md.

This is zapier/agent-skills's own configuration. It tells Codex and OpenCode how to work on agent-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 agent-skills configures →

Reuse

Borrowing it

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

Made for: 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.

agentmods badge for agent-skills AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/zapier/agent-skills/agents-md/github.svg)](https://agentmods.dev/instructions/zapier/agent-skills/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/zapier/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/zapier/agent-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.

agentmods 80×15 button for agent-skills AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/zapier/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/zapier/agent-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 955 This file is loaded in full into every session.
When invoked 955 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 $0.00955 $0.00955
Opus 5.5 $0.00382 $0.00382
Sonnet 5.5 $0.00191 $0.00191
Haiku 4.5 $0.00096 $0.00096

Measured 19d ago against content hash 319277409bde, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-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 19d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI coding agents (Claude Code, Cursor, Copilot, etc.) working in this repository.

This repository is generated

Everything here is exported from an internal Zapier repository, with commit history and authorship kept. Each export replaces the files in this repository, so:

  • Do not edit files here to change a skill, and do not open pull requests. They are not merged; a maintainer may use one as a reference for an upstream change and will close it.
  • To report a problem with a skill or suggest a change, open an issue that names the skill, what you expected, and what happened. Zapier maintainers make the change in the internal source.
  • Using the skills is unaffected: install them with npx skills add zapier/agent-skills as described in README.md.

Repository overview

A collection of skills for AI coding agents, maintained by Zapier teams. Skills are packaged instructions and scripts that extend an agent's capabilities. Skills are indexed by skills.sh and installable via npx skills add. Groupings on skills.sh come from skills.sh.json.

The sections below describe the format the skills here follow, for reading and running them.

Directory structure

Skills are grouped into a subfolder per team or project under skills/:

skills/
  <team-or-project>/        # kebab-case team/project namespace, e.g. workflows
    <skill-name>/           # kebab-case skill directory
      SKILL.md              # Required: skill definition
      scripts/              # Optional: executable scripts
        <script-name>.sh    # Bash scripts
        <script-name>.mjs   # Node scripts
      references/           # Optional: supporting docs loaded on demand
      lib/                  # Optional: shared code for scripts

Naming conventions

  • Team/project folder: kebab-case (e.g. workflows).
  • Skill directory: kebab-case (e.g. install, build).
  • SKILL.md: always uppercase, always this exact filename.
  • name: field: prefix with <team>- (e.g. workflows-install). The folder can stay short, but the name: is what the agent sees once a skill is installed alongside skills from every other source — keep it unambiguous and collision-proof. Generic names like install or build must be namespaced.
  • Scripts: kebab-case.sh or kebab-case.mjs.

Read the full file on GitHub · 111 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. 19d ago Changed · +14 lines · +141 tokens per session 319277409bde
  2. 1mo ago First seen · 97 lines · 814 tokens per session scan A 86e930f6460f

Subscribe to this mod's changes

agent-skills AGENTS.md is an instructions file published in the GitHub repository zapier/agent-skills (23 stars, last pushed 11d ago), licensed MIT. It adds 955 tokens to every session, about $0.0038 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 2026-08-30.

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