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.
npx skills add markdavidgan/apple-dev-skills --skill apple-cleanupgit clone --depth 1 https://github.com/markdavidgan/apple-dev-skillsWrote 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/skills/markdavidgan/apple-dev-skills/apple-cleanup)<a href="https://agentmods.dev/skills/markdavidgan/apple-dev-skills/apple-cleanup"><img src="https://agentmods.dev/badge/skills/markdavidgan/apple-dev-skills/apple-cleanup.svg" alt="Measured on agentmods" 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 | $0.00077 | $0.07453 |
| Opus 5 | $0.00039 | $0.03726 |
| Sonnet 5 | $0.00015 | $0.01491 |
| Haiku 4.5 | $0.00008 | $0.00745 |
Grade A, and why
apple-cleanup 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.
How it starts
The opening of the file, as written. The whole thing — 931 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Apple Cleanup — EXHAUSTIVE Engineering Hardening
Purpose: Transform an app from "development mode" to "production hardened" through EXHAUSTIVE engineering excellence — crash-free, App Store compliant, fully optimized. This is MISSION-CRITICAL cleanup. Lives depend on it. No shortcuts. No omissions.
☠️ ULTIMATE RULES (NON-NEGOTIABLE)
- NEVER START UI TESTS unless the user has explicitly approved it in the current conversation. This stands even if a plan says to run them. UI tests crash this user's Mac Mini.
- NEVER KEEP MULTIPLE VERSIONS OF A FEATURE IN CODE (
v2Enabled,legacyMode,newFlow, etc.). When replacing a feature, replace it. Delete the old path. Systematic modular variants (enum injection, DI, strategy protocols) are allowed; inline boolean forks are forbidden.
Scope: EXHAUSTIVE — ALL priorities must be addressed:
- P0 (Critical): Engineering crashes, data loss, security vulnerabilities — ZERO TOLERANCE
- P1 (High): Compliance rejection risks, Swift 6 improvements, performance, error handling — MUST FIX
- P2 (Medium): Tech debt, style cleanup, optimizations, documentation — MUST FIX
- P3 (Low): Minor refinements — address if identified
THIS IS NOT OPTIONAL CLEANUP. Every identified issue from P0 to P2 MUST be fixed before completion. No exceptions.
No design reviews, no marketing narratives.
When to Use
- Pre-submission hardening — "The app works, now make it bulletproof for App Review"
- Swift 6 compliance pass — "Fix all concurrency warnings and strict mode issues"
- Crash prevention sweep — "Find and fix every potential crash"
- Post-development cleanup — "Clean up accumulated tech debt and AI slop"
- Before TestFlight alpha — "Engineering validation before distributing"
Not for: Design reviews, feature additions, version management, or marketing copy.
Command Reference
/apple-cleanup # Cleanup app in current directory
/apple-cleanup [app] # Cleanup a specific app target
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 First seen · 931 lines · 77 tokens per session scan A 4f20f50463e4
apple-cleanup is a skill published in the GitHub repository markdavidgan/apple-dev-skills (5 stars, last pushed 9d ago), licensed MIT. It adds 77 tokens to every session and 7,453 once invoked, about $0.0004 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 2026-08-31.
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