What is Iris AGENTS.md?

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

Use them when developing Iris features, including reading the relevant design file, building with xcodebuild, and using AppKit for window behavior.

They keep feature work aligned with the project's design documents, command-line build process, native macOS patterns, and coding principles.

Iris AGENTS.md — Instructions file by ahmetb

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add instructions/ahmetb/iris/agents-md

Clone the repo

git clone --depth 1 https://github.com/ahmetb/Iris

Made for: Codex, OpenCode.

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. Scan, not verified.

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.

Model	Per session	Once invoked
Fable 5	$0.01281	$0.01281
Opus 5	$0.00641	$0.00641
Sonnet 5	$0.00256	$0.00256
Haiku 4.5	$0.00128	$0.00128

Measured 2d ago against content hash 84df09b5e6d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 2d 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.

2d 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 (59 stars, last pushed 23d ago), licensed MIT. It adds 1,281 tokens to every session, about $0.0064 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.

hand-mirror macos pearl webcam webcam-viewer

Iris AGENTS.md