Borrowing it
Nothing to install: this file belongs to phenomenoner/Chatgpt-Codex-App-Plus. 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/phenomenoner/Chatgpt-Codex-App-Plus/main/AGENTS.mdgit clone --depth 1 https://github.com/phenomenoner/Chatgpt-Codex-App-PlusWrote 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/phenomenoner/chatgpt-codex-app-plus/agents-md)<a href="https://agentmods.dev/instructions/phenomenoner/chatgpt-codex-app-plus/agents-md"><img src="https://agentmods.dev/badge/instructions/phenomenoner/chatgpt-codex-app-plus/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/phenomenoner/chatgpt-codex-app-plus/agents-md"><img src="https://agentmods.dev/badge/instructions/phenomenoner/chatgpt-codex-app-plus/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 | $0.00361 | $0.00361 |
| Opus 5.5 | $0.00144 | $0.00144 |
| Sonnet 5.5 | $0.00072 | $0.00072 |
| Haiku 4.5 | $0.00036 | $0.00036 |
Grade A, and why
Chatgpt-Codex-App-Plus 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.
What it actually says
Repository agent instructions
Scope
- Keep this repository public-safe, self-contained, and useful to readers with no private project context.
- Preserve unrelated work. Do not publish, tag, change repository visibility, or modify scheduled automation unless the active user request explicitly authorizes it.
Source and provenance
manifest/public-sources.jsonis the only authority for local source export. Do not broaden it automatically.- Vendor original components maintained here. Prefer a versioned pointer when a canonical public repository already exists.
- Never import authentication, sessions, memories, goals, logs, attachments, project trust paths, backups, local plugin caches, or connector state.
Changes and verification
- Edit authored repository files intentionally. Use
scripts/public_sync.py sync --applyonly for manifest-authorized mechanical refreshes. - For an existing exporter or scanner defect, add a discriminating regression and demonstrate fail-first when the old behavior is safely reproducible. Credential findings must remain non-exemptible.
- Before a completion or publication claim, run the focused repository and vendored component checks that can falsify the changed behavior,
python scripts/public_sync.py validate, andgit diff --check. - Run the full repository suite only when exporter/scanner infrastructure, shared schemas or catalogs, release-wide behavior, or a remaining coverage gap makes the blast radius repository-wide.
- Read the full public diff after scanners pass. Replace private shorthand with behavior, impact, verification, and honest limitations.
Publishing
- Stage explicit files in a mixed worktree. Do not use a broad add when unrelated files exist.
- Keep README, ABOUT, repository description, topics, catalog, and notices aligned when the public positioning changes.
- Do not claim official OpenAI, Anthropic, or upstream-project status.
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.
- 1mo ago First seen · 27 lines · 361 tokens per session scan A ed2db6849ba3
Chatgpt-Codex-App-Plus AGENTS.md is an instructions file published in the GitHub repository phenomenoner/Chatgpt-Codex-App-Plus (2 stars, last pushed 2d ago), licensed MIT. It adds 361 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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