From Yanis Schweizer@yanis.himself Free Claude skill Ship-Safe
AI builds your app fast. It also leaves the same security holes in almost every one. This skill finds them and fixes them.
What it checks
- 01 Phase 1The rookie mistakesKeys in the app, open databases, users seeing each other’s data. Always runs.
- 02 Phase 2Real users and real moneyFake payments, spam signups, runaway AI bills, script injection.
- 03 Phase 3High securityTwo-factor login, team data isolation, encryption, AI that can take actions safely.
It asks 7 questions, then only runs what your app actually needs.
How to use it
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Download and unzip it.
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Claude Code: drop the folder into
.claude/skills/in your project and type/ship-safe. Any other AI chat: open SKILL.md, copy everything and paste it in. -
Answer 7 quick questions, or pick Auto and let it read your code.
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Approve the plan. It fixes each problem, tests it, and explains it in plain English.
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You get a
SECURITY-REPORT.md: what was fixed, and what you need to do yourself.
Works with
WebiOSAndroidFlutterReact NativeSwiftUIKotlinSupabaseFirebaseStripeIn-app purchases
It saves your work first and asks before anything risky. It catches the common mistakes AI makes; it isn’t a replacement for a professional penetration test.
Made by Yanis Schweizer, @yanis.himself
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See it in real work
Vaultt
A platform where young talent builds in public and gets hired on proof, not a CV. Built from zero to 12.4k users.
- 12.4k
- users on the platform
- 3 months
- from idea to live v1
- 65
- database tables, 23 server functions
Outreach & CRM System
Replaced a spreadsheet outreach process with one app: find leads, email them from real mailboxes and catch every reply.
- 130
- automated tests on the sending engine
- ~10 days
- from scope to working app
- 0
- spreadsheets left