Borrowing it
Nothing to install: this file belongs to deepshal99/notch-so-good. 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/deepshal99/notch-so-good/main/AGENTS.mdgit clone --depth 1 https://github.com/deepshal99/notch-so-goodWrote 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/deepshal99/notch-so-good/agents-md)<a href="https://agentmods.dev/instructions/deepshal99/notch-so-good/agents-md"><img src="https://agentmods.dev/badge/instructions/deepshal99/notch-so-good/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/deepshal99/notch-so-good/agents-md"><img src="https://agentmods.dev/badge/instructions/deepshal99/notch-so-good/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 | $0.00607 | $0.00607 |
| Opus 5.5 | $0.00243 | $0.00243 |
| Sonnet 5.5 | $0.00121 | $0.00121 |
| Haiku 4.5 | $0.00061 | $0.00061 |
Grade A, and why
notch-so-good 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 13d 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.
This is a copy
88% identical to notch-so-good CLAUDE.md — 22 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 39 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Notch So Good
The world's smallest coworker lives in your Mac's notch. A tiny 3D character called Peek watches Codex so you don't have to. He has absolutely no chill.
Tech Stack
- Swift / SwiftUI, macOS 14+ (Sonoma)
- Swift Package Manager (no Xcode required for pre-built installs)
- Custom NSPanel for floating window
- Peek: a signed-distance-field character raymarched in Metal (
NotchSoGood/Character/) - Claude Code / Codex CLI hook integration over a per-user Unix socket (
/tmp/notchsogood-<uid>.sock)
Build
bash build-app.sh # builds .app bundle
open NotchSoGood.app # launch
bash HookInstaller/install-all-hooks.sh # install hooks for every detected agent
Design Context
Users
Developers using Codex in their terminal. They tab away while Codex works and need a glanceable, delightful way to know when Codex needs them — without intrusive OS notifications. The notification appears at the notch and should feel native to macOS.
Brand Voice
Weird, warm, technically precise. Peek is the personality — he's a character, not a mascot. Copy should be conversational and slightly absurd ("He has no chill") while the product itself is Apple-level polished. Never corporate. Never boring. The kind of tool you tell your friends about because it made you smile.
Aesthetic Direction
- Primary reference: Apple Dynamic Island — black, seamless notch integration, precise animations, feels like part of the hardware
- Secondary reference: Raycast / Arc Browser — modern macOS power-tool aesthetic, clean dark UI, slightly playful touches
- Anti-references: No corporate/enterprise notification feel. Not too plain — needs character and delight via the character and subtle motion.
- Theme: Dark-only. Pure black background blending with the notch. Content uses soft muted accent colors (green, blue, orange, purple) — never harsh neon.
Design Principles
- Hardware-native feel — The notification should feel like a built-in macOS feature, not a third-party overlay. Seamless notch blending, system-consistent shadows, and precise positioning.
- The character is the soul — Peek is the personality of the app. It should be prominent, animated, and expressive — never an afterthought.
- Delightful restraint — Animations should be springy and satisfying but not excessive. Colors should be soft accents on black, never overwhelming. Every detail is intentional.
- Glanceable clarity — A developer should understand the notification type and message in under 1 second. Strong visual hierarchy: mascot expression → accent color → title → message.
- Invisible when idle — Zero presence when not notifying. No persistent UI besides a subtle menubar icon. Appears and disappears gracefully.
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.
- 13d ago Changed · +7 tokens per session d278ce3e779b
- 20d ago First seen · 39 lines · 600 tokens per session scan A dceb259769d1
notch-so-good AGENTS.md is an instructions file published in the GitHub repository deepshal99/notch-so-good (9 stars, last pushed 4d ago), licensed MIT. It adds 607 tokens to every session, about $0.0024 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to notch-so-good CLAUDE.md, differing in 22 lines, and is treated as a copy.
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