Borrowing it
Nothing to install: this file belongs to Reedtrullz/codex-antigravity-auth. 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/Reedtrullz/codex-antigravity-auth/main/AGENTS.mdgit clone --depth 1 https://github.com/Reedtrullz/codex-antigravity-authWrote 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/reedtrullz/codex-antigravity-auth/agents-md)<a href="https://agentmods.dev/instructions/reedtrullz/codex-antigravity-auth/agents-md"><img src="https://agentmods.dev/badge/instructions/reedtrullz/codex-antigravity-auth/agents-md.svg" alt="Measured on agentmods" 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 | $0.01536 | $0.01536 |
| Opus 5 | $0.00768 | $0.00768 |
| Sonnet 5 | $0.00307 | $0.00307 |
| Haiku 4.5 | $0.00154 | $0.00154 |
Grade B, and why
codex-antigravity-auth AGENTS.md scanned grade B with 1 finding 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 6d 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
`~/.codex/config.toml`: How it starts
The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — Codex Antigravity Auth
Current verification snapshot: 2026-08-24 — main/v2.2.0 at 499ff436c311638ebe67cea6ad2de354a309e6ec; CI run 32522720655 and Publish run 32522720637 passed for that SHA. The historical release-candidate notes elsewhere in this repository are not current release claims.
Guidance for AI coding agents (Codex, Claude Code, OpenCode, etc.) working on this project.
Overview
Local gateway server that allows OpenAI Codex (CLI and Desktop) to use Google Antigravity models (Gemini 3.7/3.1, Claude Sonnet/Opus 4.6) via Google OAuth PKCE and multi-account rotation, plus BYOK OpenAI-compatible providers such as OpenRouter, DeepSeek, xAI, Kimi/Moonshot, Ollama, and OpenCode-compatible endpoints.
Architecture
codex_antigravity_auth/
├── server.py # FastAPI gateway: POST /v1/responses, GET /v1/models
├── transform.py # Codex Responses API ↔ Google Gemini/Claude translation
├── accounts.py # AccountManager: selection, rotation, cooldowns, refresh
├── oauth.py # PKCE OAuth flow, token exchange, refresh
├── storage.py # Encrypted JSON persistence (Fernet + OS keyring)
├── cli.py # CLI: login, doctor, accounts, start
├── constants.py # Endpoints, credential resolution, platform detection
├── byok.py # Encrypted BYOK provider config, presets, model routing
├── models.py # User-facing model name → backend ID mapping
├── schema.py # JSON Schema sanitization for Antigravity compatibility
tests/
├── test_transform.py
├── test_server_streaming.py
├── test_accounts.py
├── test_storage.py
├── test_cli.py
├── test_schema_sanitization.py
├── test_fidelity_transforms.py
├── test_fidelity_edge_cases.py
How Requests Flow
Codex Desktop/CLI
│ POST /v1/responses (Responses API format)
▼
server.py: create_response()
│ 1. select_active_account(model) → accounts.py
│ 2. transform_request() → transform.py
│ 3. POST to daily-cloudcode-pa.googleapis.com/v1internal:generateContent
│ 4. transform_response() → transform.py
▼
Codex Desktop/CLI ← Responses API formatted response
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.
- 6d ago First seen · 119 lines · 1,536 tokens per session scan B 5ebd369f72e8
codex-antigravity-auth AGENTS.md is an instructions file published in the GitHub repository Reedtrullz/codex-antigravity-auth (2 stars, last pushed 13d ago), licensed MIT. It adds 1,536 tokens to every session, about $0.0077 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
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.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
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.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.