Hacker ApprovedDepartments

Google Agent Development Kit

Hacker Approved

Shares rank 10 of 28 agent frameworks by recommenders

Free open-source framework for building AI agents, praised for clean abstractions and multi-language support. Critics call it unpolished and rapidly changing.

Free open-source framework for building AI agents, praised for clean abstractions and multi-language support. Critics call it unpolished and rapidly changing.

21 people gave an opinion

recommend it
16
criticize it
5
approval share
76%
Each figure is one person. RecommendsCriticizes

Recommended in 10 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: not recommended
  4. February 2026: recommended
  5. March 2026: recommended
  6. April 2026: recommended
  7. May 2026: recommended
  8. June 2026: not recommended
  9. July 2026: recommended
  10. August 2026: recommended
  11. September 2026: recommended
  12. October 2026: recommended
  13. November 2026: not recommended (month in progress)

Why it carries the badge

  • 16 people recommend itNeeds 10 or more, met.
  • 3.2 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 10 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Well designed abstractions

    “It has a ton of day 2 features, really nice abstractions, and positioned itself well in terms of the building blocks and constructing workflows.”

    Comment from 22 Nov 2025 in “Agent design is still hard”

    “I would place Google ADK in alignment with Kubernetes more than this project, for the well designed abstractions, the controlplane”

    Comment from 7 Apr 2026 in “Google Open Sources Experimental Agent Orchestration Testbed Scion”

    “ADK is really well designed. We've used it as the harness for our main product since about January and it's been solid.”

    Comment from 30 Jul 2026 in “Go LLM SDK for streaming, tool-calling AI backends (plus frontend React lib)”
  • Handles bookkeeping and day-two features

    “It has a ton of day 2 features, really nice abstractions, and positioned itself well in terms of the building blocks and constructing workflows.”

    Comment from 22 Nov 2025 in “Agent design is still hard”

    “handles all that bookkeeping for me, has a few options built in, and pretty easy to add new implementations”

    Comment from 13 Dec 2025 in “SSE sucks for transporting LLM tokens”

    “My agent framework (ADK) does this for free.”

    Comment from 1 Mar 2026 in “Queuelo – Approval infrastructure for AI agents”
  • Runtime agnostic, multiple languages

    “ADK is great framework for building agents as it is runtime agnostic”

    Comment from 17 Feb 2026 in “A remote control for your agents”

    “This is my goto SDK, it comes in multiple languages too.”

    Comment from 28 Oct 2026 in “The Agent SDK”

    “I use ADK-go (also available in py, ts, java)”

    Comment from 14 Feb 2026 in “Ask HN: How do you build internal agents at work?”

What people warn about

Each mark is one comment

  • Lacks local persistent memory

    “I really wish ADK had a local persistent memory implementation, though.”

    Comment from 22 Nov 2025 in “Agent design is still hard”

    “I really with that things like Google ADK didn't add this to my deps.”

    Comment from 21 Oct 2026 in “Compromised LiteLLM 1.107.0 on PyPI Installs a Credential Stealer and Backdoor”

Other agent frameworks people recommend

The four most recommended other agent frameworks, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Google Agent Development Kit compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Claude Agent SDK362559%11——
LangChain327929%101 yr3 owners—
Mastra32391%10—Approved
LangGraph312357%12——
Google Agent Development KitThis page16576%10—Approved
See all 28 agent frameworks, ranked

What people said

37 of the 41 comments that mention it, newest first. Each links to the original comment.

“This is my goto SDK, it comes in multiple languages too.”

RecommendsComment from 28 Oct 2026 in “The Agent SDK”

“I really with that things like Google ADK didn't add this to my deps.”

CriticizesComment from 21 Oct 2026 in “Compromised LiteLLM 1.107.0 on PyPI Installs a Credential Stealer and Backdoor”

“I think Google's ADK ecosystem and this new AX platform is promising”

RecommendsComment from 21 Sep 2026 in “AX – Google’s Open Agentic Orchestrator”

“they have features for exactly this, mixing determ with agentic in a dag”

RecommendsComment from 21 Aug 2026 in “Every Model Cheats”

“ADK is really well designed. We've used it as the harness for our main product since about January and it's been solid.”

RecommendsComment from 30 Jul 2026 in “Go LLM SDK for streaming, tool-calling AI backends (plus frontend React lib)”

“v2 reorients it around graph operators for control flow”

RecommendsComment from 8 May 2026 in “Agents need control flow, not more prompts”

“I would place Google ADK in alignment with Kubernetes more than this project, for the well designed abstractions, the controlplane”

RecommendsComment from 7 Apr 2026 in “Google Open Sources Experimental Agent Orchestration Testbed Scion”

“Agent deployment infra is exactly the layer that's missing right now.”

RecommendsComment from 6 Apr 2026 in “Show HN: Locki – AI sandboxing for real-world projects”

“ADK makes it simple by using a prebuilt Lima VM for CLI deploy, but that doesn't work well in development.”

MixedComment from 3 Apr 2026 in “Show HN: Locki – AI sandboxing for real-world projects”

“Big fan of ADK, I use the Go version.”

RecommendsComment from 30 Mar 2026 in “ADK for Java 1.0.0: Building the Future of AI Agents in Java”

“their ADK open source agent framework is quite good too”

RecommendsComment from 20 Mar 2026 in “Google's AI Studio now integrates with Firebase for vibe coding production apps”

“The framework I use (ADK) already handles this, very low hanging fruit that should be a part of any framework”

RecommendsComment from 13 Mar 2026 on Hacker News

“a well thought through framework by a company that leads in both AI and engineering”

RecommendsComment from 13 Mar 2026 in “How are people debugging multi-agent AI workflows in production?”

“they typically don't provide durable execution—if the process crashes, the agent will restart from scratch”

MixedComment from 12 Mar 2026 in “Running LangGraph, CrewAI, Google ADK with Durable Workflows”

“My agent framework (ADK) does this for free.”

RecommendsComment from 1 Mar 2026 in “Queuelo – Approval infrastructure for AI agents”

“ADK is a great framework for building agentic systems”

RecommendsComment from 25 Feb 2026 in “OpenHarness: A code-first, composable SDK to build powerful AI agents”

“I like ADK, it's lower level and more general, so there is a bit you have to do to get a "claw" like experience”

RecommendsComment from 21 Feb 2026 in “Andrej Karpathy talks about "Claws"”

“I already have durable agents in ADK with postgres and dagger”

RecommendsComment from 17 Feb 2026 in “A remote control for your agents”

“ADK is great framework for building agents as it is runtime agnostic”

RecommendsComment from 17 Feb 2026 in “A remote control for your agents”

“I use ADK-go (also available in py, ts, java)”

RecommendsComment from 14 Feb 2026 in “Ask HN: How do you build internal agents at work?”

“Great interfaces that are easy to extend with code.”

RecommendsComment from 13 Feb 2026 in “Ask HN: What makes an AI agent framework production-ready vs. a toy?”

“ADK does that for me in a database”

RecommendsComment from 3 Feb 2026 in “GitHub Browser Plugin for AI Contribution Blame in Pull Requests”

“It indeed has too much abstraction.”

CriticizesComment from 18 Dec 2025 in “Getting a Gemini API key is an exercise in frustration”

“ADK is open source as I like it”

RecommendsComment from 15 Dec 2025 in “Ask HN: What Are You Working On? (December 2025)”

“handles all that bookkeeping for me, has a few options built in, and pretty easy to add new implementations”

RecommendsComment from 13 Dec 2025 in “SSE sucks for transporting LLM tokens”

“you can go a level down and build on something like the ADK to bring your expertise and experience to the building blocks”

RecommendsComment from 11 Dec 2025 in “GPT-5.2”

“ADK is minimal and easy to adjust as we learn things”

RecommendsComment from 11 Dec 2025 in “Getting a Gemini API key is an exercise in frustration”

“some big IDs are not passed precisely in Google ADK framework”

CriticizesComment from 22 Nov 2025 in “Agent design is still hard”

“I really wish ADK had a local persistent memory implementation, though.”

CriticizesComment from 22 Nov 2025 in “Agent design is still hard”

“It has a ton of day 2 features, really nice abstractions, and positioned itself well in terms of the building blocks and constructing workflows.”

RecommendsComment from 22 Nov 2025 in “Agent design is still hard”

“I've been using Google ADK to create custom agents (fantastic SDK).”

RecommendsComment from 19 Nov 2025 in “AI is a front for consolidation of resources and power”

“Google ADK is real nice and gives you an API as well”

RecommendsComment from 18 Nov 2025 in “Google Antigravity”

“easier to get started for basic agent apps”

MixedComment from 12 Nov 2025 in “Adk-go: code-first Go toolkit for building, evaluating, and deploying AI agents”

“An agent is just an object, you assign it tools that are just functions, and agents can call other agents.”

RecommendsComment from 11 Nov 2025 in “Adk-go: code-first Go toolkit for building, evaluating, and deploying AI agents”

“Been looking forward to this.”

RecommendsComment from 11 Nov 2025 in “Adk-go: code-first Go toolkit for building, evaluating, and deploying AI agents”

“a readable, nice example in [1] which explains itself”

RecommendsComment from 11 Nov 2025 in “Adk-go: code-first Go toolkit for building, evaluating, and deploying AI agents”

“I'd say its a bit unpolished, as is the rest of the rapidly developing ADK framework, but it does exist.”

MixedComment from 7 Nov 2025 in “You should write an agent”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.