--- title: Building AI Agents with the GO Agent Development Kit... description: A hands-on tutorial for building AI agents using the Go Agent Development Kit (ADK) 2.x, updated for 2026. Covers migration from ADK 1.x to 2.0, including the... canonical: https://daily.dev/posts/building-ai-agents-with-the-go-agent-development-kit-adk-2-x-2026-edition-gt2zewznj twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Building AI Agents with the GO Agent Development Kit (ADK 2.x) — 2026 Edition | daily.dev og:description: A hands-on tutorial for building AI agents using the Go Agent Development Kit (ADK) 2.x, updated for 2026. Covers migration from ADK 1.x to 2.0, including the... og:url: https://daily.dev/posts/building-ai-agents-with-the-go-agent-development-kit-adk-2-x-2026-edition-gt2zewznj og:image: https://api.daily.dev/og/posts/gT2zeWZNJ.png og:image:alt: Building AI Agents with the GO Agent Development Kit (ADK 2.x) — 2026 Edition og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Building AI Agents with the GO Agent Development Kit (ADK 2.x) — 2026 Edition **[Medium](https://daily.dev/sources/medium_js)** · 8 min read · 4 upvotes · 0 comments ## Summary A hands-on tutorial for building AI agents using the Go Agent Development Kit (ADK) 2.x, updated for 2026. Covers migration from ADK 1.x to 2.0, including the new agent.Context API, Agent-to-Agent (A2A) multi-agent architecture, structured logging with slog, graceful shutdown handling, and defensive tool input validation. Includes step-by-step setup with Go 1.26, authentication with Vertex AI, running agents locally via CLI or Web UI, and three Cloud Run deployment strategies using Docker, the adkgo CLI, and a local proxy. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What version of Go is required for Go ADK 2.0? Go 1.26.5 is the version used with Go ADK 2.0 (google.golang.org/adk/v2 v2.1.0), which reached general availability on June 30, 2026. All go.mod files in the migrated project use go 1.26.5 module directives to support the language features and telemetry packages ADK 2.0 requires, alongside Google GenAI SDK v1.65.0. _Track Go and ADK version bumps like this one on daily.dev before they break your build._ ### How do I handle graceful shutdown in a Go agent deployed to Cloud Run? Use signal.NotifyContext(context.Background(), os.Interrupt) at each entrypoint to create a context that cancels cleanly on SIGINT and SIGTERM, which Cloud Run sends during container termination. Pair it with a deferred cancel() call so in-flight requests can finish before the process exits. _Developers hardening Cloud Run services can follow patterns like this via daily.dev._ ### What is the A2A (Agent-to-Agent) protocol used for in Go ADK 2.x? A2A enables multi-agent delegation by letting one agent expose its capabilities over HTTP endpoints (a2a-server-go) while other agents dispatch requests to it as a client (a2a-client-go), with orchestrators like a2a-master-go and a2a-gemini3-go coordinating complex multi-agent workflows using Gemini models. It is implemented via github.com/a2aproject/a2a-go v0.3.15+. _Anyone designing multi-agent architectures can keep up with A2A tooling changes on daily.dev._ ## Similar posts on daily.dev - [Google Launches Agent Development Kit for Go](https://daily.dev/posts/google-launches-agent-development-kit-for-go-1ycxcf1do) · InfoQ · 1 upvotes · 0 comments - [Announcing the Agent Development Kit for Go: Build Powerful AI Agents with Your Favorite Languages](https://daily.dev/posts/announcing-the-agent-development-kit-for-go-build-powerful-ai-agents-with-your-favorite-languages-wyu4cqyex) · Google Developers · 1 upvotes · 0 comments - [ADK Go 1.0 Arrives\!](https://daily.dev/posts/adk-go-1-0-arrives--7e16jjkco) · Google Developers · 94 upvotes · 3 comments - [Hands-on with the Google Agent Development Kit](https://daily.dev/posts/hands-on-with-the-google-agent-development-kit-zcvlgqadp) · InfoWorld · 1 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#golang](https://daily.dev/tags/golang), [#gcp](https://daily.dev/tags/gcp) [View this post on daily.dev](https://daily.dev/posts/building-ai-agents-with-the-go-agent-development-kit-adk-2-x-2026-edition-gt2zewznj) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Building AI Agents with the GO Agent Development Kit (ADK 2.x) — 2026 Edition","url":"https://daily.dev/posts/building-ai-agents-with-the-go-agent-development-kit-adk-2-x-2026-edition-gt2zewznj","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/building-ai-agents-with-the-go-agent-development-kit-adk-2-x-2026-edition-gt2zewznj"},"datePublished":"2026-07-29T19:37:05.819Z","dateModified":"2026-09-14T07:02:38.314Z","description":"A hands-on tutorial for building AI agents using the Go Agent Development Kit (ADK) 2.x, updated for 2026. 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