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name: grpc-protocol description: Expert skill for gRPC protocol implementation, debugging, and performance optimization allowed-tools:

• Bash
• Read
• Write
• Edit
• Glob
• Grep

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gRPC Protocol Skill

Expert skill for gRPC protocol implementation, service definition, and debugging across multiple languages.

Capabilities

• Service Definition: Generate gRPC service definitions and Protocol Buffer schemas
• Code Generation: Generate client and server stubs for multiple languages
• Streaming Debugging: Debug unary, client-streaming, server-streaming, and bidirectional streaming
• gRPC-Web Compatibility: Analyze and configure gRPC-web for browser clients
• Load Balancing: Configure gRPC-specific load balancing strategies
• Interceptors: Implement client and server interceptors for cross-cutting concerns
• Testing: Test gRPC services with grpcurl and other debugging tools
• Performance Optimization: Optimize gRPC performance including connection pooling and compression

Tools and Dependencies

• protoc - Protocol Buffer compiler
• grpcurl - Command-line gRPC client
• grpc-web - gRPC for browser clients
• buf - Modern Protocol Buffer tooling
• evans - Interactive gRPC client

Target Processes

• realtime-messaging-system.js (gRPC streaming)
• custom-protocol-design.js (gRPC-based protocols)
• layer7-load-balancer.js (gRPC routing)

Usage Examples

Service Definition

service Greeter {
  rpc SayHello (HelloRequest) returns (HelloReply);
  rpc SayHelloStream (HelloRequest) returns (stream HelloReply);
}

Testing with grpcurl

grpcurl -plaintext localhost:50051 list
grpcurl -plaintext -d '{"name": "World"}' localhost:50051 greeter.Greeter/SayHello

Reflection Debugging

grpcurl -plaintext localhost:50051 describe greeter.Greeter

Quality Gates

• Protocol Buffer schema validation
• Service reflection verification
• Streaming flow control testing
• Error handling validation
• Performance benchmarking