metaproof
Lint App Store metadata before you submit
npx metaproof fastlane/metadataOpen Source
Small command-line tools I built for my own releases, published because the problem was not mine alone.
Each of these started as a step I kept getting wrong by hand across 12 apps. They are checklists wearing a command line: they run locally, they exit non-zero, and they are meant to fail your build before Apple or a reader fails it for you.
No telemetry, no accounts, no network calls except the one Gemini request voice-rewriter exists to make. The two App Store linters run fully offline. Every command below runs without installing anything.
screenproof
Lint App Store screenshots and app previews before you submit
npx screenproof fastlane/screenshotsRelated studio work
- Check a single asset in the browser insteadUse the related workflow in the browser.
- The First Thing My New Linter Flagged Was My Own Live AppRead the engineering note connected to this work.
- App Store ListingTitle, subtitle, description, keywords, and a screenshot plan
- Scripts and AutomationOne scoped Python or TypeScript script / CLI
- Code ReviewWritten review of one repo or PR set
voice-rewriter
Rewrite a post in a supplied voice, and fail closed on drift
npx voice-rewriter --version