Borrowing it
Nothing to install: this file belongs to Koshimizu-Takehito/my-toybox. 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/Koshimizu-Takehito/my-toybox/develop/CLAUDE.mdgit clone --depth 1 https://github.com/Koshimizu-Takehito/my-toyboxWrote 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/koshimizu-takehito/my-toybox/claude-md)<a href="https://agentmods.dev/instructions/koshimizu-takehito/my-toybox/claude-md"><img src="https://agentmods.dev/badge/instructions/koshimizu-takehito/my-toybox/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/koshimizu-takehito/my-toybox/claude-md"><img src="https://agentmods.dev/badge/instructions/koshimizu-takehito/my-toybox/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 | $0.00815 | $0.00815 |
| Opus 5 | $0.00407 | $0.00407 |
| Sonnet 5 | $0.00163 | $0.00163 |
| Haiku 4.5 | $0.00081 | $0.00081 |
Grade A, and why
my-toybox 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Build & Development Commands
# Open project in Xcode
make open
# or
xed .
# Create new screen (interactive or with name)
make new-screen
make new-screen NAME=MyAnimation
make new-screen NAME=MyShader SHADER=yes
# Clean build artifacts
make clean
Build & Test (CI/Command-line)
# Build
xcodebuild -workspace MyToybox.xcworkspace -scheme MyToybox \
-destination 'platform=iOS Simulator,name=iPhone 17,OS=26.4' \
CODE_SIGNING_ALLOWED=NO clean build
# Run all tests
xcodebuild -workspace MyToybox.xcworkspace -scheme MyToybox \
-destination 'platform=iOS Simulator,name=iPhone 17,OS=26.4' \
CODE_SIGNING_ALLOWED=NO test
# Run specific test
xcodebuild test -workspace MyToybox.xcworkspace -scheme MyToybox \
-destination 'platform=iOS Simulator,name=iPhone 17,OS=26.4' \
-only-testing MyToyboxCoreTests/MyToyboxCoreTests/testName \
CODE_SIGNING_ALLOWED=NO
Architecture
This is an iOS/macOS visual effects showcase app (Swift 6.3, SwiftUI, Metal) with a modular SPM-based architecture.
Module Structure:
App/MyToybox/- Xcode app entry point (App.swift→RootScreen)Packages/Sources/MyToyboxCore/- Shared models and utilities (ScreenMetadata,Tag,ThumbnailView,DeepLinkSheet) + URL routingPackages/Sources/MyToyboxMedia/- Shared media assets for shader-based screensPackages/Sources/PlatformSupport/- Platform abstraction utilitiesPackages/Sources/AppScreens/- Screen catalog:AppScreen.swiftenum defining all available screensPackages/Sources/ClipScreens/- App Clip screen catalog (subset of screens)Packages/Sources/MockScreens/- Mock screen catalog for previews/testingPackages/Sources/Screens/RootScreen/- Root navigation UI shell: adaptive layouts (sidebar/split/compact)Packages/Sources/Screens/DetailScreen/- Detail view for individual screensPackages/Sources/Screens/TagPicker/- Tag filter UI:TagPicker, flow layout
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.
- 6d ago First seen · 78 lines · 815 tokens per session scan A 140368df05fe
my-toybox CLAUDE.md is an instructions file published in the GitHub repository Koshimizu-Takehito/my-toybox (117 stars, last pushed 2mo ago), licensed MIT. It adds 815 tokens to every session, about $0.0041 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 2026-09-04.
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