atoi-plugins: Instructions file for Codex

AGENTS.md

atoi-plugins AGENTS.md is an instructions file for Codex, OpenCode from creative-int/atoi-plugins. It costs 737 tokens per session, scanned A, original, MIT.

Repository instructions for the Atoi plugin companion, which distributes Atoi integrations for coding-agent tools. They describe which files are authoritative, how generated files are produced, and how changes are checked.

In plain words
What is it for?
Use them when developing, generating, verifying, or preparing changes to the Atoi plugin companion.
Why use it?
They prevent edits to generated files and clarify the required checks and security boundaries for maintaining the repository.

Instructions file for CodexOpenCode

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

This is creative-int/atoi-plugins's own configuration. It tells Codex and OpenCode how to work on atoi-plugins 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 atoi-plugins configures →

Reuse

Borrowing it

Nothing to install: this file belongs to creative-int/atoi-plugins. 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/creative-int/atoi-plugins/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/creative-int/atoi-plugins

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 atoi-plugins AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/creative-int/atoi-plugins/agents-md/github.svg)](https://agentmods.dev/instructions/creative-int/atoi-plugins/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/creative-int/atoi-plugins/agents-md"><img src="https://agentmods.dev/badge/instructions/creative-int/atoi-plugins/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 atoi-plugins AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/creative-int/atoi-plugins/agents-md"><img src="https://agentmods.dev/badge/instructions/creative-int/atoi-plugins/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 737 This file is loaded in full into every session.
When invoked 737 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 $0.00737 $0.00737
Opus 5.5 $0.00295 $0.00295
Sonnet 5.5 $0.00147 $0.00147
Haiku 4.5 $0.00074 $0.00074

Measured 1mo ago against content hash c1d10dcee5c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

atoi-plugins 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 1mo 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 · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Atoi Plugins

This repository is Atoi's public agent-plugin-companion. It ships one plugin, plugins/atoi, packaged to the Agent Plugins 1.0.0 standard (https://agent-plugins.org, spec/1.0.0.md in agentplugins/agent-plugins-spec), and the catalogs Claude Code, Codex and Cursor read to install it. The Atoi product repo remains the runtime and schema authority.

Source of truth

atoi.config.ts is the single hand-edited source for identity, version, catalog policy, and the MCP bridge. Never hand-edit what it generates:

  • plugins/atoi/plugin.json
  • plugins/atoi/mcp.json
  • .claude-plugin/marketplace.json
  • .agents/plugins/marketplace.json
  • .cursor-plugin/marketplace.json
  • server.json
  • the README install block between generated markers

Skills under plugins/atoi/skills/ are edited directly.

Layout rules

  • The plugin root holds only portable files: plugin.json, mcp.json, skills/, assets/. OpenAI presentation lives under extensions.com.openai in plugin.json, never in .codex-plugin/.
  • Claude Code does not read a root plugin.json or mcp.json; its catalog entry carries the metadata and points mcpServers at ./mcp.json.
  • A second plugin is a new directory under plugins/ and a new entry in each catalog.
  • Bump plugin.version with every change a user should receive: Claude Code pins installs to that string.

Delivery loop

pnpm generate
pnpm verify
git status --short
git add <intentional-files>
git commit -m "feat: ..."

Run pnpm verify before every commit. After pushing a change to plugins/ or a catalog, run pnpm proof:install --source creative-int/atoi-plugins --record and commit the receipt: a client install path is claimed only with a receipt.

The plugin declares the remote door (https://atoi.app/api/mcp) only after pnpm proof:door --record is proven for that URL; smoke enforces it. Until then plugins/atoi/mcp.json stays the stdio bridge.

When the product's MCP registry changes, copy apps/docs/src/generated/mcp-reference.json from the Atoi repo at a named commit into tooling/reference/, update SOURCE.json, regenerate, and bump the version.

Read the full file on GitHub · 77 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. 1mo ago Changed · +27 lines · +393 tokens per session c1d10dcee5c2
  2. 2mo ago First seen · 50 lines · 344 tokens per session scan A 70de70a1d528

Subscribe to this mod's changes

atoi-plugins AGENTS.md is an instructions file published in the GitHub repository creative-int/atoi-plugins (0 stars, last pushed 12d ago), licensed MIT. It adds 737 tokens to every session, about $0.0029 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 2026-08-31.

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