Iris: Instructions file for Codex

AGENTS.md

Iris AGENTS.md is an instructions file for Codex, OpenCode from ahmetb/Iris. It costs 1,281 tokens per session, scanned A, original, MIT.

Repository instructions for Iris, a macOS app that shows a webcam feed in a circular window that stays above other windows.

In plain words
What is it for?
Use them when developing Iris features, including reading the relevant design file, building with xcodebuild, and using AppKit for window behavior.
Why use it?
They keep feature work aligned with the project's design documents, command-line build process, native macOS patterns, and coding principles.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is ahmetb/Iris's own configuration. It tells Codex and OpenCode how to work on Iris 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 Iris configures →

View source ↗ ahmetb/Iris
Reuse

Borrowing it

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

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.

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README.md
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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.

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Per session 1,281 This file is loaded in full into every session.
When invoked 1,281 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 $0.01281 $0.01281
Opus 5.5 $0.00512 $0.00512
Sonnet 5.5 $0.00256 $0.00256
Haiku 4.5 $0.00128 $0.00128

Measured 2mo ago against content hash 84df09b5e6d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Iris 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.

AGENTS.md · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Development Principles for Iris.app

Project Overview

Iris is a macOS application that displays a webcam feed in a circular, always-on-top window. This is an LLM-agent-coded project where the human developer provides feedback but does not write code directly.

Core Development Principles

1. No Xcode IDE Required

  • All development must be possible via command-line tools
  • Provide build.sh and run.sh scripts for easy compilation and launch
  • Use xcodebuild for building, not Xcode IDE
  • Developer should only need: macOS, Command Line Tools, and a terminal

2. Design-First Approach

  • Every feature has a corresponding design/*.md file
  • Read the design doc before implementing a feature
  • Design docs specify:
    • High-level architecture
    • Key classes and their responsibilities
    • Edge cases and gotchas
    • Testing considerations

3. Code Quality Standards

Simplicity Over Cleverness
  • Write straightforward, readable code
  • Avoid premature optimization
  • No unnecessary abstractions
  • Clear naming over comments
Native macOS Patterns
  • Use AppKit (not SwiftUI) for precise window control
  • Follow Apple's Human Interface Guidelines
  • Leverage native APIs (AVFoundation, NSStatusBar, etc.)
  • Handle macOS-specific behaviors properly
Error Handling
  • Gracefully handle camera permissions denial
  • Handle no camera available scenario
  • Handle window positioning on disconnected displays
  • Log errors clearly for debugging

4. Incremental Development

  • Build features one at a time
  • Each feature should be testable independently
  • Commit working code frequently
  • Don't break existing functionality

5. Performance Considerations

  • Video rendering should be smooth (60fps target)
  • Minimize CPU usage when idle
  • Efficient memory usage for video buffers
  • Window resizing should be responsive

6. User Experience

  • No crashes or unexpected behavior
  • Smooth animations and transitions
  • Clear error messages
  • Sensible defaults
  • Remember user preferences

Read the full file on GitHub · 165 lines

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. 2mo ago First seen · 165 lines · 1,281 tokens per session scan A 84df09b5e6d0

Subscribe to this mod's changes

Iris AGENTS.md is an instructions file published in the GitHub repository ahmetb/Iris (68 stars, last pushed 2mo ago), licensed MIT. It adds 1,281 tokens to every session, about $0.0051 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 2026-08-30.

Related

Iris AGENTS.md compared with instructions from other repositories

Iris AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
Iris AGENTS.mdahmetb/IrisInstructions file682mo agoMITA1,281Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k3d agoMITA4,313Codex, OpenCode