name: libcodegen description: > libcodegen - Protocol Buffer code generation. TypeGenerator, ServiceGenerator, and DefinitionGenerator transform .proto files into JavaScript types, gRPC service stubs, and type definitions. Use for generating code from protobuf schemas, automating service stub creation, and maintaining type consistency across services.

libcodegen Skill

When to Use

• Generating JavaScript types from Protocol Buffer schemas
• Creating gRPC service stubs automatically
• Updating generated code after .proto changes
• Maintaining type consistency across microservices

Key Concepts

TypeGenerator: Generates JavaScript classes from protobuf message definitions with proper type annotations.

ServiceGenerator: Creates gRPC service stubs with method signatures matching the proto service definitions.

DefinitionGenerator: Generates type definitions for IDE support and documentation.

Usage Patterns

Pattern 1: Generate types from protos

import { TypeGenerator } from "@copilot-ld/libcodegen";

const generator = new TypeGenerator("./proto");
await generator.generate("./generated/types");

Pattern 2: Generate service stubs

import { ServiceGenerator } from "@copilot-ld/libcodegen";

const generator = new ServiceGenerator("./proto");
await generator.generate("./generated/services");

Integration

Run via make codegen after modifying .proto files. Output used by libtype and librpc.