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/CLAUDE.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/claude-md)<a href="https://agentmods.dev/instructions/deepshal99/notch-so-good/claude-md"><img src="https://agentmods.dev/badge/instructions/deepshal99/notch-so-good/claude-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/claude-md"><img src="https://agentmods.dev/badge/instructions/deepshal99/notch-so-good/claude-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 | $0.01140 | $0.01140 |
| Opus 5.5 | $0.00456 | $0.00456 |
| Sonnet 5.5 | $0.00228 | $0.00228 |
| Haiku 4.5 | $0.00114 | $0.00114 |
Grade A, and why
notch-so-good CLAUDE.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.
Copies of this mod
1 near-identical copy found in the catalogue:
- notch-so-good AGENTS.md — 88% identical, 22 lines differ
How it starts
The opening of the file, as written. The whole thing — 47 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 little 3D character (Peek, by default) watches Claude Code so you don't have to, and has absolutely no chill.
Tech Stack
- Swift / SwiftUI, macOS 14+ (Sonoma)
- Swift Package Manager (no Xcode required for pre-built installs)
- Island design tokens (spacing, concentric radii, type scale) live in
NotchSoGood/Views/IslandStyle.swift; card and pill geometry the window controller needs before layout lives inNotchNotificationView.MetricsandPillLayout. - Custom NSPanels for the notch (pill, cards); the menu bar item and its panel are our own
MenuBarController(NSStatusItem + clear panel), not MenuBarExtra, so the menu can take the island's shape - Only Peek is offered (
CharacterKind.available); the other characters stay in the engine. Each character has its own finishes (CharacterKind.finishes), and a finish can come in tones (CharacterFinish.tones, the user's pick kept per finish inCharacterSettings) - The landing page lives in
site/(static, no build). Its Peek is a WebGL port ofCharacterShaderSource/CharacterEngineinsite/peek.js: keep the two shaders in step when a finish changes.site/dev/README.mdhas the tools - Hooks: Notch So Good only answers "allow" after a user click; anything it wouldn't ask about gets no decision so the agent's own rules decide. Installers merge with the user's own hooks
- Notch characters (Peek, Tail, Roost, Bubble) are signed-distance fields raymarched in a Metal shader (
NotchSoGood/Character/), compiled from source at runtime becauseswift builddoesn't compile.metalfiles. Choreography and Bubble's physics live inCharacterEngine.swift. - Debug builds can render offscreen snapshots:
.build/out/Products/Debug/NotchSoGood --snapshots <dir>(runs alongside an installed copy, starts no servers) - Replies from the notch: Claude's Stop also runs a
Replyhook withasyncRewake(2.1.287+) that waits up to an hour for text typed on the finished card; exit 2 with the text on stderr wakes Claude. Typing in the terminal (UserPromptSubmit) cancels it - Card shortcuts (
HotkeyManager) are ⌃⌥ + A/D/S/1–6/R/N/O, registered only while a card that uses them is up; ⌃⌥R brings the app forward so the panel gets keys, then hands focus back - Claude Code / Codex CLI hook integration over a per-user Unix socket (
/tmp/notchsogood-<uid>.sock). Approvals come from the agents'PermissionRequesthook; questions and plans from PreToolUse withupdatedInput - Updates: Sparkle with our own EdDSA key and a self-signed release certificate (no Apple Developer account);
release.shpublishes
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.
- 8d ago Changed · +1 lines · +88 tokens per session fa0168bd7032
- 11d ago Changed · +2 lines · +126 tokens per session b619f5ac46e1
- 13d ago Changed · +1 lines · +41 tokens per session 2490796ba06b
- 20d ago Changed · +4 lines · +273 tokens per session 242c1c6cc8f0
- 1mo ago First seen · 39 lines · 612 tokens per session scan A 6da3bc4b090c
notch-so-good CLAUDE.md is an instructions file published in the GitHub repository deepshal99/notch-so-good (9 stars, last pushed 4d ago), licensed MIT. It adds 1,140 tokens to every session, about $0.0046 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.
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