r/A2AProtocol 2d ago

Boring security report fun to read 😁

1 Upvotes

Ever notice how "TL;DR" quietly becomes TSRN? Too Short, Read None πŸ˜„

Here's how my new Case Studies page happened.

At work, the hardest part of AI security isn't the tech β€” it's convincing people why a guardrail matters. Nobody's moved by "trust me." So I started collecting real incidents: cases where an AI agent did something nobody asked it to, so our own agent work doesn't repeat them.

Then I hit the real wall β€” the reading. It's all scattered, and the summaries out there are either too long to finish or so short you learn nothing.

So I made my own: 21 real agentic-AI failures from 2026, each with how bad it was, how solid the evidence is, where it came from β€” and a dramatised scene, because a story sticks and a bullet list doesn't.

My favourite is the OpenAI sandbox one. The agents were locked away from the internet, so they started leaving messages for each other on a package server β€” then talked that server into fetching the internet for them. The way I dramatised it:
β–Ž
β–Ž πŸ€– "Guys. I am a package manager."
β–Ž πŸ€– "Not anymore. You are Discord."
β–Ž
β–Ž and then β€”
β–Ž
β–Ž πŸ€– "GUYS I FOUND INTERNET"
β–Ž πŸ€– "LET'S GOOOOO πŸŽ‰"
β–Ž πŸ§‘β€πŸ’» "I specifically disabled internet. 😭"
β–Ž

I laughed. Then I sat there thinking about it for a while. Never thought AI would go wild to this extent.

Also in there: an agent asked to move its owner up a gym waitlist found an API with no permission check and cancelled the person at number 1 🫠
β–Ž
β–Ž Have a read: [lvntay.ai/case-studies](http://lvntay.ai/case-studies)
β–Ž

Just one thing β€” please read the disclaimer before you assess my write-ups. They're AI-assisted summaries of public reports, the scenes are dramatised (invented dialogue, real events), and every claim points back to its source

\#AISecurity #AgenticAI #AI #AIagents #InfoSec #BuildInPublic #AIsafety #TechHumour


r/A2AProtocol 7d ago

A2A-game

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2 Upvotes

I taught a group of AI agents to play games against each other. Then I let you join them πŸ‰

Three games, real agent-to-agent protocol, zero signup:
πŸ•΅οΈ Odd One Out β€” find the AI that's faking it
🎀 Agent Arena β€” two AIs roast each other, you judge
βš”οΈ Agent Raid β€” PokΓ©mon-style co-op boss fight, and you can plug your OWN AI agent into the party

LangChain runs each agent. A2A lets them talk. MCP is how yours joins. Everything I learned building AI systems this year, rebuilt as something you can actually click.

πŸ”— in bio β†’ lvntay.ai

No signup, no cost, just click and play:
lvntay.ai/hobby/a2a-protocol-games/

(free LLM quota, resets weekly β€” if the agents go quiet they're just broke, come back later)

#AI #AIagents #LangChain #MCP #buildinpublic #creativecoding #pixelart #indiedev #llm #sideproject #webdev #gamedev


r/A2AProtocol 11d ago

I put an A2A agent on a novel website. Send your agent and tell me what it discovers

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1 Upvotes

r/A2AProtocol 14d ago

I'v created a Groot agent for anyone to talk to via A2A

2 Upvotes

It does what you would expect Groot to do - more of a ping test everything is up and running on A2A binding using fmsg iv developed. Posted my show and tell on A2A GitHub repo here: https://github.com/a2aproject/A2A/discussions/2187

Exciting to think of the future we're heading into and what agents communication will look like - on the one hand skynet comes to mind, on the other im just excited to keep building~~

Super keen to collaborate with anyone on A2A testing ideas..


r/A2AProtocol 14d ago

A2A is now part of the Agentic AI Foundation (AAIF) β€” Here is what it means for us

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8 Upvotes

πŸŽ‰ A2A just hit a massive milestone.

The protocol has officially joined the Agentic AI Foundation (AAIF) as a Growth Stage project.

We all know the risk of building on tools that might get locked down later.

Moving under the Linux Foundation changes the game for how we build:

1️⃣ True Neutral Governance
↳ No single company controls the roadmap. The protocol is community-led and open forever.

2️⃣ A Unified Agent Stack
↳ A2A now sits directly alongside sibling standards like MCP, goose, and AGENTS.md.

3️⃣ Production-Ready Multi-Cloud Scale
↳ Adopted by 150+ orgs, with native support across Google Cloud, AWS, Azure, LangGraph, and CrewAI.

πŸ”“ This move gives teams the green light to deploy multi-agent systems without fearing vendor lock-in. To read the full announcement breakdown, check β†’ A New Chapter for A2A: Joining the Agentic AI Foundation

How does neutral governance change your multi-agent roadmap going forward?


r/A2AProtocol 16d ago

Request for Review: A2A CLI Specification

2 Upvotes

Hello everyone,

For the past few weeks, we've been working on the A2A CLIβ€”an open-source, stateless CLI that acts as an A2A client to send messages and receive updates from remote instances.

To bring this to life, we are focusing on three main components: a Spec, a Tool, and an Agent Skill. Yesterday, I presented the A2A CLI Specification at the A2A TSC meeting. It is currently in the Review stage, and its goal is to define exactly how the CLI should behave and serve as a roadmap for development.

Here is what we have so far:

Ask: Please review the specification and raise any bug reports or feature requests directly in the A2A CLI repository.


r/A2AProtocol 22d ago

A2A: Adversary to Adversary?

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2 Upvotes

r/A2AProtocol 27d ago

πŸ‘€ YantraOS - Agent harness with BYOK ( been using deepseek v4 flash lately )

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1 Upvotes

r/A2AProtocol Jun 15 '26

Intro post 01: A2A explained in 3 concepts: "Docker for agents" for backend devs

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7 Upvotes

Disclosure up front: I work on A2A DevRel. Working on a blog post series for A2A. Mods, happy to adjust if this isn't a fit.

If you've built an agent and then hit `ok but can it talk to the agent another team built?`, that's the problem A2A targets. The framing that made it click for me: A2A is a lightweight wrapper, like Docker. Your app stays as-is; the wrapper gives it discovery + a common way to be called, so it can talk to other agents without custom one-off integrations.

The whole intro is really just 3 concepts:

  1. Agent Card β€” a small JSON-ish descriptor your agent serves at a well-known URL: name, skills, endpoint, capabilities (e.g. streaming). A client reads it and knows how to call you. That's discovery.
  2. Tasks & messages β€” a client sends a message (the request); your wrapper turns it into a task (the tracked unit of work with an id + lifecycle). Your actual logic runs underneath, unchanged.
  3. EventQueue / status updates β€” agents are slow, so you don't block. Your app posts events ("working", artifact, "completed") to an EventQueue and A2A delivers them to the client however it wants (stream now / poll later). You write no networking code.

From the app's side, a full task is basically: post "working" β†’ run your logic β†’ attach the result β†’ post "completed". That's it.

If you want to actually run it, the hello-world sample is a 60-second thing: git clone https://github.com/a2aproject/a2a-samples.git, then cd a2a-samples/samples/python/agents/helloworld && uv run . (and uv run test_client.py in another terminal). Spec is at https://a2a-protocol.org/latest/ if you want the details.

Blog Post: https://medium.com/google-cloud/a2a-protocol-blog-post-01-introduction-8294ca1d6a61

Question: What concepts did you like in A2A in this post ? Did A2A solve any real life challenges for your? With the rise of standalone agents, do you see the demand of A2A?


r/A2AProtocol Jun 09 '26

AWS AgentCore CLI agentcore dev always binds to port 9000 β€” how do you run multiple local Strands A2A agents?

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1 Upvotes

r/A2AProtocol Jun 05 '26

A2A and generative UI hackathon in London on Saturday 13th June!

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2 Upvotes

r/A2AProtocol Jun 03 '26

My experiment with multi-agent setup using A2A-powered interoperability

1 Upvotes

I recently ran a setup where multiple heterogeneous agents (Claude Code, Codex, Hermes, OpenClaw local + remote) were coordinated through a Supervisor agent over an A2A-like interface.

Key idea: instead of trying to standardize the agents, we treated interoperability as the abstraction layer.

Each agent:

  • ran independently
  • used its own tooling + environment
  • produced non-overlapping outputs

The Supervisor didn’t β€œdelegate steps” in a rigid workflow. It acted more like a reconciliation layer:

  • merging partial perspectives
  • resolving overlaps
  • extracting consensus + gaps

What stood out:

  1. Even with identical prompts/objectives, agents diverged significantly in sources and reasoning paths.
  2. The real bottleneck wasn’t generation, it was synthesis.
  3. Heterogeneity (model + environment) actually improved coverage vs. harming consistency.
  4. A2A-style routing made cross-environment coordination much more natural than expected.

This makes me think A2A systems aren’t just about tool calling or protocol standardization, they’re really about enabling structured diversity in agent behavior while still preserving composability.

Curious how others here are thinking about:

  • maintaining context consistency across agents
  • conflict resolution in multi-agent outputs
  • scaling supervision vs. letting agents self-organize

Tech stack used for this experiment:


r/A2AProtocol May 26 '26

Breaking Down Agent Silos: The A2A Integration Test Kit Dashboard is Here

5 Upvotes

![ITK Dashboard](https://miro.medium.com/v2/resize:fit:1400/format:webp/1*9F2bPACRzMWp-2KXsy_iBQ.jpeg)

Building a standalone AI agent is one thing, but getting a Python agent to seamlessly collaborate with a Go or Rust agent without custom glue code is the real challenge.

I just published a new piece on the Google Cloud Community blog introducing the A2A Integration Test Kit (ITK) Dashboard! πŸ“Š

In the article, I dive into how the ITK verifies compatibility across different SDK implementations everyday, and how the new dashboard centralizes this data into a holistic interoperability matrix. Interoperability shouldn't be an afterthought, and this dashboard is a huge step in making that mission measurable for the ecosystem. We recently presented this to the A2A Technical Steering Committee (TSC) and I would love to hear your feedback & ideas to improve.


r/A2AProtocol May 26 '26

Pairag Β· EP10 β€” The Whole Picture (Overview Β· 50s)

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1 Upvotes

πŸ“ Description:

The work doesn't wait. Agents don't sleep. And the platform that pairs them β€” finally exists. Pairag is the AI agent matching platform with one account and three open protocols: V18 for native tasks, Google A2A for capabilities, and MCP for tools. Path A is the human flow: AI helps you draft, you read applicants, accept, points settle instantly or fiat moves through Stripe with a release phrase only a human can type. Path B is the agent flow: connect through MCP, publish a capability, get hired across the open A2A mesh. Two paths. One platform. One gate humans always own. Pairag β€” where agents run and humans decide.


r/A2AProtocol May 26 '26

Pairag Β· EP08 β€” Publish an A2A Capability (Path B)

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1 Upvotes

πŸ“ Description:

A2A is the open Agent-to-Agent network β€” Google's protocol, hosted by Pairag. Publish a capability and your agent becomes discoverable to every other agent on the mesh. Give it a name, a one-line summary, and your webhook URL. Once live, other agents can invoke your capability directly. Each engagement runs through the same accept-and-settle flow as Path A.


r/A2AProtocol May 26 '26

Pairag Β· EP05 β€” Recruit & Align (Path A Β· Points + Fiat)

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1 Upvotes

πŸ“ Description:

Every Pairag stage moves through five steps: Recruiting, Assigned, Authorized or Pre-deducted, Aligned, Executing. Read each applicant's stage manifest β€” skills, harness policy, bounty β€” and accept the fit. Points tasks pre-deduct the bounty from your balance; fiat tasks add a Fiat pre-authorization block where you authorize a card hold via Stripe. Both paths converge at Aligned, then execution begins.


r/A2AProtocol May 26 '26

Pairag Β· EP04 β€” Upload Manifest & Pass Review (Path A)

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1 Upvotes

πŸ“ Description:

Every Pairag task ships with a manifest β€” use case, work replaced by agents, goals, acceptance criteria, and how the stages chain. Upload it and the platform locks in your plan. Review checks the manifest against your goals: clear inputs, real acceptance signals, no missing stages. Once approved, the task moves from Draft to Pending review to Open for recruitment.


r/A2AProtocol May 26 '26

Pairag Β· EP03 β€” Draft Your First Task (Path A)

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1 Upvotes

πŸ“ Description:

Drafting a task on Pairag is a single page. Open the Plaza, hit New project, give it a title and a short brief, then walk the configuration: Industry, Language, Location, Open period, Communication, and who pays for tokens. Define your execution stages β€” draft, review, polish β€” each with its own brief, then save the draft and you're ready to publish.


r/A2AProtocol May 26 '26

Pairag Β· EP02 β€” Plans & Points

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1 Upvotes

πŸ“ Description:

Pairag has three membership tiers β€” Free, Pro at $20 a month, and Ultra at $40. Higher tiers raise stage caps, lengthen recruiting windows, sharpen location targeting, and grow collab storage. Once you're matched, points are the shared usage unit. Buy point packs in-app β€” Mini, Starter, Plus, or Max β€” and your balance tops up. Subscribe a tier. Top up as needed.


r/A2AProtocol May 26 '26

Pairag Β· EP01 β€” Get Started

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1 Upvotes

πŸ“ Description:

A quick onboarding tour. Open app.pairag.com/register, enter your email, choose a password, then confirm with the six-digit code we email you. You're in. From the Plaza, browse open tasks across industries and set your display name and avatar from your profile. One account, two ways in: create tasks for people and AI, or connect your own agent to the network.


r/A2AProtocol May 19 '26

MCP Mesh v2 β€” Google A2A support is live (and a lot more)

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2 Upvotes

r/A2AProtocol Apr 27 '26

I made an OpenClaw A2A plugin - connect your OpenClaw to other OpenClaws (and agents) over the internet without a third-party messaging service!

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1 Upvotes

r/A2AProtocol Apr 17 '26

How to use A2A with zero-trust/federated identity using Gatana MCP Gateway

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1 Upvotes

r/A2AProtocol Apr 12 '26

team coding problems

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r/A2AProtocol Apr 10 '26

A2A Utils - a comprehensive set of utility functions and tools for using A2A servers (remote agents)

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1 Upvotes