# Grpc

Build or review gRPC services and clients in .NET.

- Repository: https://github.com/managedcode/dotnet-skills (500 stars)
- Category: Testing
- License: MIT
- Last updated: 2026-10-29
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add managedcode/dotnet-skills --skill grpc -g -a claude-code -y`
Codex: `npx skills add managedcode/dotnet-skills --skill grpc -g -a codex -y`
Cursor: `npx skills add managedcode/dotnet-skills --skill grpc -g -a cursor -y`
Gemini CLI: `npx skills add managedcode/dotnet-skills --skill grpc -g -a gemini-cli -y`

## Description

Build or review gRPC services and clients in .NET. USE FOR: ASP.NET Core gRPC, protobuf contracts, unary or streaming RPC, gRPC client factory, interceptors, deadlines, cancellation, channel reuse, backend service integration. DO NOT USE FOR: broad browser-facing APIs without gRPC-Web tradeoff review, SignalR realtime hubs, plain REST APIs. INVOKES: dotnet build/test and focused service or client smoke checks when code changes.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# gRPC for .NET

## Trigger On

- building backend-to-backend RPC services or clients
- adding protobuf contracts, streaming calls, or interceptors
- deciding between gRPC, HTTP APIs, and SignalR
- optimizing gRPC performance, deadlines, cancellation, or connection reuse
- integrating service-to-service communication in microservices

## Do Not Use For

- public browser-first APIs unless gRPC-Web limitations are explicitly acceptable
- SignalR hub design, realtime UI fan-out, or websocket-style client collaboration
- generic ASP.NET Core minimal APIs or REST controllers with no protobuf/RPC requirement
- non-.NET gRPC work unless the user asks for cross-stack contract guidance

## Load References

- [references/patterns.md](references/patterns.md) for proto design, streaming implementations, interceptors, health checks, load balancing, and client factory setup.
- [references/anti-patterns.md](references/anti-patterns.md) for common channel, deadline, streaming, message-size, and exception-handling mistakes.

## Workflow

The rest: https://github.com/managedcode/dotnet-skills/blob/HEAD/catalog/Frameworks/gRPC/skills/grpc/SKILL.md