api-design
Public API Design and Compatibility
When to Use This Skill
Use this skill when:
- Designing public APIs for NuGet packages or libraries
- Making changes to existing public APIs
- Planning wire format changes for distributed systems
- Implementing versioning strategies
- Reviewing pull requests for breaking changes
The Three Types of Compatibility
| Type | Definition | Scope |
|---|---|---|
| API/Source | Code compiles against newer version | Public method signatures, types |
| Binary | Compiled code runs against newer version | Assembly layout, method tokens |
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