Summary
If you've ever had App Store Connect reject your screenshots because they're 2 pixels off or have alpha transparency, this skill is the workflow you need. It wraps the `asc` CLI and macOS `sips` to validate, resize, and strip alpha from screenshots before upload. The key insight is treating `asc screenshots sizes` as the source of truth instead of hardcoding dimensions that go stale when Apple changes requirements. It also handles the annoying Unicode space bug in macOS screenshot filenames and includes a clever JPEG round-trip trick to remove alpha channels. The guardrails are smart: always validate before upload, never overwrite originals, and don't stretch images across incompatible aspect ratios unless you're okay with the distortion.
Install to Claude Code
npx -y skills add rorkai/app-store-connect-cli-skills --skill asc-screenshot-resize --agent claude-codeInstalls into .claude/skills of the current project.
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →