Borrowing it
Nothing to install: this file belongs to psychofanPLAYS/gemini4codex-mcp. 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/psychofanPLAYS/gemini4codex-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/psychofanPLAYS/gemini4codex-mcpWrote 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/psychofanplays/gemini4codex-mcp/agents-md)<a href="https://agentmods.dev/instructions/psychofanplays/gemini4codex-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/psychofanplays/gemini4codex-mcp/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/psychofanplays/gemini4codex-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/psychofanplays/gemini4codex-mcp/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 | $0.00245 | $0.00245 |
| Opus 5.5 | $0.00098 | $0.00098 |
| Sonnet 5.5 | $0.00049 | $0.00049 |
| Haiku 4.5 | $0.00024 | $0.00024 |
Grade A, and why
gemini4codex-mcp 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 2mo 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
Agent Collaboration & Development Guide
This repository contains the Gemini MCP delegator. Codex is the primary orchestrator and owns review, apply, commit, and push decisions.
Runtime
- Workers run through the already-running Antigravity Desktop language server.
- The bridge discovers the live local HTTP listener and never executes bootstrap instructions.
- Git-backed tasks run in
~/.codex/gemini-delegator/worktrees/wt-<uuid>. scoutandreviewerprofiles receive read-only instructions. Worktree isolation and Antigravity's own tool policy are the actual safety boundary.
Change invariants
WorktreeManager.apply_runstages a complete tracked/untracked patch withgit apply --index; it never commits or merges automatically.- Reports must include uncommitted tracked changes and untracked files.
- Normal worktree reuse and cleanup refuse dirty worktrees. Destructive cleanup is explicit and only used by apply/cancel after the caller chooses it.
- Codex reviews the resulting diff before applying it to a target checkout.
- Keep SQLite ledger operations consistent and use
uvfor dependencies.
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.
- 2mo ago First seen · 25 lines · 245 tokens per session scan A 52250b9017b5
gemini4codex-mcp AGENTS.md is an instructions file published in the GitHub repository psychofanPLAYS/gemini4codex-mcp (2 stars, last pushed 1mo ago), licensed MIT. It adds 245 tokens to every session, about $0.0010 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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