headroom-desktop: Instructions file for Codex

AGENTS.md

headroom-desktop AGENTS.md is an instructions file for Codex, OpenCode from gglucass/headroom-desktop. It costs 342 tokens per session, scanned A, original, MIT.

Repository instructions for headroom-desktop, a Tauri desktop app with a Rust backend and a React and TypeScript frontend. The app routes coding agents through a local proxy that reduces token use.

In plain words
What is it for?
Use them when developing, testing, type-checking, or reviewing the headroom-desktop application.
Why use it?
They tell an agent which project areas and checks matter before changing code, reducing the risk of breaking the app or violating its rules.

Instructions file for CodexOpenCode

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

This is gglucass/headroom-desktop's own configuration. It tells Codex and OpenCode how to work on headroom-desktop 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 headroom-desktop configures →

Reuse

Borrowing it

Nothing to install: this file belongs to gglucass/headroom-desktop. 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/gglucass/headroom-desktop/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/gglucass/headroom-desktop

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 headroom-desktop AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/gglucass/headroom-desktop/agents-md.svg)](https://agentmods.dev/instructions/gglucass/headroom-desktop/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/gglucass/headroom-desktop/agents-md"><img src="https://agentmods.dev/badge/instructions/gglucass/headroom-desktop/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 342 This file is loaded in full into every session.
When invoked 342 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 $0.00342 $0.00342
Opus 5 $0.00171 $0.00171
Sonnet 5 $0.00068 $0.00068
Haiku 4.5 $0.00034 $0.00034

Measured 8d ago against content hash 6da19b9f8d68, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

headroom-desktop 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 8d 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 · 33 lines

What it actually says

AGENTS.md - headroom-desktop

Canonical agent guidance for this repo lives in CLAUDE.md (same directory). Read it before changing code; it holds the project invariants (testing rules, persistence rules, wheel-bump rules, styling/token rules, formatting). This file only adds the quickstart every agent needs.

What this is

Tauri desktop app (Rust backend in src-tauri/src/, React/TS frontend in src/) that routes Claude Code / Codex / OpenCode through a local token-optimization proxy. See README.md for architecture and the proxy topology (ports 6767/6768).

Commands

npm install && npm run tauri dev            # run the app
cargo test --manifest-path src-tauri/Cargo.toml --lib <filter>   # Rust tests
cargo check --manifest-path src-tauri/Cargo.toml                 # cross-module changes
npx tsc --noEmit                            # frontend types
npx vitest run                              # frontend tests
./scripts/check-colors.sh                   # CSS token gate (CI-enforced)
./scripts/check-no-console.sh               # console.log gate (CI-enforced)

Large files warning

tool_manager.rs (~12k lines), state.rs (~9k), lib.rs (~7.3k), client_adapters.rs (~5k), and src/App.tsx (~7.7k) are too big to read whole. Locate symbols with grep -n, then read only the region you edit.

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. 8d ago First seen · 33 lines · 342 tokens per session scan A 6da19b9f8d68

Subscribe to this mod's changes

headroom-desktop AGENTS.md is an instructions file published in the GitHub repository gglucass/headroom-desktop (537 stars, last pushed today), licensed MIT. It adds 342 tokens to every session, about $0.0017 per session on Opus 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 2026-08-30.

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