antigravity-plugins: Instructions file for Codex

AGENTS.md

antigravity-plugins AGENTS.md is an instructions file for Codex, OpenCode from iicmaster/antigravity-plugins. It costs 355 tokens per session, scanned A, original, MIT.

Project instructions for antigravity-plugins, including its commands, architecture, workflow, and verification requirements.

In plain words
What is it for?
Use them when developing or testing the plugins, checking AGY runtime support, running the Node test suite, or validating changes before committing.
Why use it?
They help agents change the correct runtime code, avoid staging local files, and handle command construction and MCP arguments safely.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/iicmaster/antigravity-plugins/agents-md"><img src="https://agentmods.dev/badge/instructions/iicmaster/antigravity-plugins/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 355 This file is loaded in full into every session.
When invoked 355 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 $0.00355 $0.00355
Opus 5.5 $0.00142 $0.00142
Sonnet 5.5 $0.00071 $0.00071
Haiku 4.5 $0.00036 $0.00036

Measured 22d ago against content hash c7fc2721558b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

antigravity-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 22d 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 · 26 lines

What it actually says

Project Instructions

Scope

  • This file governs the repository from this directory downward.

Commands

  • npm test - Run the Node test suite.
  • npm run check:spec - Run the agent-plugins.org v1.0.0 pre-publish specification gate.
  • npm run validate - Run all tests and the pre-publish specification gate.
  • node plugins/agy/scripts/agy-companion.mjs setup - Check local AGY runtime support.

Architecture

  • plugins/agy/scripts/lib/agy-runtime.mjs owns AGY process execution, safe argv construction, state, worker launch, and cancellation helpers.
  • plugins/agy/commands/ and plugins/agy/skills/agy/ are host adapters; keep them thin and do not duplicate runtime behavior there.
  • Prompt text is piped through stdin without passing --print; AGY 1.1.1 enters implicit non-interactive mode for non-TTY stdin.

Workflow

  • Stage only intended source/docs files. Do not commit local workflow or runtime folders such as .agent/, .claude/, .agents/skills/, _bmad/, .omx/, plugin-data/, or .agy-state/.
  • Keep Claude and Codex behavior shared through the companion/runtime unless host contracts truly require separate implementation.
  • Treat command construction, permission flags, and MCP argument validation as security-sensitive.

Verification

  • Run git diff --check before committing.
  • Run npm test for code, runtime, plugin metadata, or command behavior changes.
  • Smoke-test Claude Code or Codex installs when changing host install flow, commands, MCP config, or setup behavior.
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. 22d ago Changed · +1 lines · +32 tokens per session c7fc2721558b
  2. 2mo ago First seen · 25 lines · 323 tokens per session scan A 2a2959f58e6d

Subscribe to this mod's changes

antigravity-plugins AGENTS.md is an instructions file published in the GitHub repository iicmaster/antigravity-plugins (7 stars, last pushed 9d ago), licensed MIT. It adds 355 tokens to every session, about $0.0014 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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