Borrowing it
Nothing to install: this file belongs to brandonwie/codex-hud. 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/brandonwie/codex-hud/main/AGENTS.mdgit clone --depth 1 https://github.com/brandonwie/codex-hudWrote 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/brandonwie/codex-hud/agents-md)<a href="https://agentmods.dev/instructions/brandonwie/codex-hud/agents-md"><img src="https://agentmods.dev/badge/instructions/brandonwie/codex-hud/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/brandonwie/codex-hud/agents-md"><img src="https://agentmods.dev/badge/instructions/brandonwie/codex-hud/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 | $0.00166 | $0.00166 |
| Opus 5.5 | $0.00066 | $0.00066 |
| Sonnet 5.5 | $0.00033 | $0.00033 |
| Haiku 4.5 | $0.00017 | $0.00017 |
Grade A, and why
codex-hud 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
AGENTS.md
Local agent instructions for this repository come from the 3B project profile,
linked on each machine as the git-ignored AGENTS.override.md. This committed
file holds only the review pointer that hosted reviewers read.
Code Review Rules
Review every pull request against REVIEW.md, the single review
standard for this repository. Read it before the diff and apply all of it:
what to report and skip, the finding format and P0/P1/P2 severity, the review
areas, and the verification gates. Where it disagrees with general best
practice, REVIEW.md wins.
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 Changed · +20 lines · +142 tokens per session 66f5ee2d6423
- 2mo ago Changed · +1 tokens per session f8ba08126ecc
- 2mo ago First seen · 1 lines · 23 tokens per session scan A 80805f6cb0fa
codex-hud AGENTS.md is an instructions file published in the GitHub repository brandonwie/codex-hud (13 stars, last pushed 10d ago), licensed MIT. It adds 166 tokens to every session, about $0.0007 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.
codex-hud AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| codex-hud AGENTS.mdbrandonwie/codex-hud | Instructions file | 13 | 10d ago | MIT | A | 166 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode ai-customization.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 1,907 | GitHub Copilot |