protobuf-grpc-designer
Protocol Buffers and gRPC service definition with backward compatibility checks
What this skill does
# Protocol Buffers and gRPC Designer Skill
## Overview
This skill specializes in designing Protocol Buffers schemas and gRPC service definitions with a focus on backward compatibility, performance, and cross-language interoperability.
## Capabilities
- Design .proto files following Google's style guide and best practices
- Implement gRPC service definitions with streaming support
- Validate wire format backward compatibility
- Generate language-specific stubs for multiple targets
- Configure proto linting and breaking change detection
- Design efficient message structures for performance
- Implement gRPC interceptors and middleware patterns
## Target Processes
- API Design Specification
- Backward Compatibility Management
- Multi-Language SDK Strategy
## Integration Points
- buf (schema registry, linting, breaking change detection)
- protoc (Protocol Buffer compiler)
- grpcurl (gRPC testing)
- gRPC-Gateway (REST transcoding)
- Connect (modern gRPC alternative)
## Input Requirements
- Service domain requirements
- Message structure definitions
- Streaming requirements (unary, server, client, bidirectional)
- Target languages for code generation
- Backward compatibility policy
## Output Artifacts
- .proto schema files
- buf.yaml configuration
- Generated language stubs
- Breaking change analysis report
- API documentation from proto comments
## Usage Example
```yaml
skill:
name: protobuf-grpc-designer
context:
protoDirectory: ./proto
targetLanguages:
- go
- python
- typescript
enableBufLint: true
checkBreakingChanges: true
streamingRequired: true
```
## Best Practices
1. Use package names that reflect domain boundaries
2. Reserve field numbers when removing fields
3. Use well-known types (Timestamp, Duration, etc.)
4. Document all messages and fields with comments
5. Version services through package names
6. Implement proper error handling with Status codes
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