feat: improve skill scores for react-email

[popey]

Hullo @resend 👋 - me again! :D

As with resend/email-best-practices#10 and resend/resend-skills#30 I ran your skills through tessl skill review at work and found some targeted improvements.

Here's the before/after for this repo:

Skill	Before	After	Change
react-email	79%	93%	+14%

Changes made

• Expanded frontmatter description — added explicit capability verbs ("Creates, previews, and sends responsive HTML email templates") so agents can better identify when to activate the skill
• Consolidated installation section — collapsed four separate package manager listings across three steps (~60 lines) into a single concise block with a note about alternatives, resolving the line-count warning (530 → 463 lines)
• Added STYLING.md reference — linked the existing but unreferenced references/STYLING.md from the styling section for better progressive disclosure
• Resolved validation warning — SKILL.md now passes all checks with 0 errors and 0 warnings

Honest disclosure — I work at @tesslio where we build tooling around skills like these. Not a pitch - just saw room for improvement and wanted to contribute.

Want to self-improve your skills? Just point your agent (Claude Code, Codex, etc.) at this Tessl guide and ask it to optimize your skill. Ping me - @popey - if you hit any snags.

Thanks in advance 🙏

---

Summary by cubic

Improves the react-email skill docs to make activation and setup clearer, raising the skill review score from 79% to 93%. Simplifies installation, clarifies capabilities, and links styling docs; validation now passes with no warnings.

• Refactors
  • Expanded frontmatter with capability verbs (create, preview, send responsive HTML emails).
  • Consolidated install/start steps into a single create-email flow with notes for yarn/pnpm/bun; trimmed 67 lines and removed the line-count warning; clarified the preview at localhost:3000.
  • Linked references/STYLING.md from the styling section; SKILL.md now validates with 0 errors and 0 warnings.

^{Written for commit 85083a5. Summary will update on new commits.}

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Latest commit: 85083a5

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[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.