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antigravity-awesome-skills/skills/sdk-dx/README.md

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+# sdk-dx
+
+Design SDKs that developers love to use. Great SDK developer experience drives adoption through word-of-mouth rather than aggressive marketing.
+
+## What This Skill Covers
+
+- **API Design Principles**: Optimize for common cases, progressive disclosure
+- **Error Messages**: Messages that guide developers to solutions
+- **Type Safety**: Autocomplete and compile-time checks
+- **IDE Integration**: Documentation in the editor
+- **Versioning**: Semantic versioning and deprecation processes
+- **Migration Guides**: Smooth upgrades between versions
+- **Native Feel**: Language-idiomatic design patterns
+
+## When to Use This Skill
+
+- Designing a new SDK or client library
+- Improving developer experience of existing SDKs
+- Planning SDK versioning and release strategy
+- Creating migration paths for breaking changes
+- Evaluating SDK quality before release
+
+## Key Principle
+
+The best SDK marketing is an SDK developers can't stop recommending. When your SDK makes developers feel productive and competent, they become your advocates.
+
+## Quick Wins
+
+1. Add helpful error messages with "how to fix" guidance
+2. Ensure IDE autocomplete works for all operations
+3. Add docstrings/JSDoc to all public methods
+4. Test that quickstart code actually works
+5. Create specific error types developers can catch
+
+## Related Skills
+
+- `docs-as-marketing` - Documentation for your SDK
+- `api-onboarding` - First experience with your SDK
+- `changelog-updates` - Communicating SDK changes