SDK installation and setup patterns for Agent-to-Agent Protocol across Python, TypeScript, Java, C#, and Go. Use when implementing A2A protocol, setting up SDKs, configuring authentication, or when user mentions SDK installation, language-specific setup, or A2A integration.
This skill is limited to using the following tools:
README.mdexamples/csharp-basic.csexamples/error-handling-java.mdexamples/error-handling-python.mdexamples/error-handling-typescript.mdexamples/go-basic.goexamples/java-basic.javaexamples/python-async.pyexamples/python-basic.pyexamples/typescript-basic.tsscripts/install-csharp.shscripts/install-go.shscripts/install-java.shscripts/install-python.shscripts/install-typescript.shscripts/validate-csharp.shscripts/validate-go.shscripts/validate-java.shscripts/validate-python.shscripts/validate-skill.shPurpose: Provide installation, configuration, and usage patterns for A2A Protocol SDKs across multiple programming languages.
Activation Triggers:
Supported Languages:
# Install SDK
./scripts/install-python.sh
# Verify installation
./scripts/validate-python.sh
# Install SDK
./scripts/install-typescript.sh
# Verify installation
./scripts/validate-typescript.sh
# Install SDK
./scripts/install-java.sh
# Verify installation
./scripts/validate-java.sh
# Install SDK
./scripts/install-csharp.sh
# Verify installation
./scripts/validate-csharp.sh
# Install SDK
./scripts/install-go.sh
# Verify installation
./scripts/validate-go.sh
All installation scripts are in scripts/ directory:
install-python.sh - Install Python SDK via pipinstall-typescript.sh - Install TypeScript SDK via npm/yarninstall-java.sh - Install Java SDK via Maven/Gradleinstall-csharp.sh - Install C# SDK via NuGetinstall-go.sh - Install Go SDK via go getValidation scripts verify installation and dependencies:
validate-python.sh - Check Python SDK installationvalidate-typescript.sh - Check TypeScript SDK installationvalidate-java.sh - Check Java SDK installationvalidate-csharp.sh - Check C# SDK installationvalidate-go.sh - Check Go SDK installationTemplates are in templates/ directory:
Environment Setup:
env-template.txt - Environment variable template (all languages)python-config.py - Python configuration exampletypescript-config.ts - TypeScript configuration examplejava-config.xml - Java Maven configurationcsharp-config.csproj - C# project configurationgo-mod.txt - Go module configurationAuthentication:
auth-api-key-template.txt - API key authenticationauth-oauth-template.txt - OAuth authenticationauth-jwt-template.txt - JWT authenticationAll SDKs use environment variables for configuration:
# Required
A2A_API_KEY=your_api_key_here
A2A_BASE_URL=https://api.a2a.example.com
# Optional
A2A_TIMEOUT=30
A2A_RETRY_ATTEMPTS=3
A2A_LOG_LEVEL=info
CRITICAL: Always use placeholders in committed files. Create .env.example with placeholder values only.
All SDKs support three authentication methods:
See templates/auth-*-template.txt for implementation patterns.
All SDKs provide consistent error handling:
A2AConnectionError - Network/connectivity issuesA2AAuthenticationError - Invalid credentialsA2ARateLimitError - Rate limit exceededA2AValidationError - Invalid request dataSee examples/error-handling-*.md for language-specific patterns.
pip install a2a-protocolexamples/python-basic.pynpm install @a2a/protocolexamples/typescript-basic.tsexamples/java-basic.javadotnet add package A2A.Protocolexamples/csharp-basic.csgo get github.com/a2a/protocol-goexamples/go-basic.goPackage not found:
# Python
pip install --upgrade pip
pip install a2a-protocol
# TypeScript
npm cache clean --force
npm install @a2a/protocol
# Java
mvn clean install -U
# C#
dotnet restore --force
# Go
go clean -modcache
go get -u github.com/a2a/protocol-go
Version conflicts: Run the appropriate validation script to check dependencies:
./scripts/validate-<language>.sh
Environment Variables:
.env files (add to .gitignore).env.example with placeholdersAPI Keys:
Network Security:
Complete examples for each language:
examples/python-basic.py - Basic Python usageexamples/python-async.py - Async Python usageexamples/typescript-basic.ts - Basic TypeScript usageexamples/java-basic.java - Basic Java usageexamples/csharp-basic.cs - Basic C# usageexamples/go-basic.go - Basic Go usageexamples/error-handling-python.md - Python error handlingexamples/error-handling-typescript.md - TypeScript error handlingexamples/error-handling-java.md - Java error handlingOfficial Documentation:
GitHub Repositories:
Version: 1.0.0 Protocol Compatibility: A2A Protocol 1.0+