Agent Conf | Sept 17-18, 2026 | Warsaw

The conference for the agentic era. September 17th–18th, 2026. Warsaw, Poland. Hosted by @callstackio.

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

"I only trust them when I don't look at the code." @tmikov is only half joking here. In the interview, he also explains how he reviews specs and tests, with Codex and Claude helping with review ⬇️

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Draft the email, wait for approval, then send. @DavidKPiano of @statelyai explains how state machines define an AI agent's workflow, with guards for unexpected outputs. Watch the interview ⬇️

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Why put 100 agents on code quality? Carl Ross of @OpenAI explains competing code changes, a grader that picks the best candidate, and agents that keep cleaning up as features ship. Watch the interview ⬇️

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

What changes when you move beyond a single agent? Nishant Gupta of @Meta explains shared state, background ops agents, and a control plane for authentication and observability. Watch the interview ⬇️

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Who's testing the code your agents write? @SzymonRybczak of @TesterArmy explains AI testing for web and mobile apps, including test plans built around each pull request.

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Grok Bot reached internal beta in about a month. @nickwm of @spacexai explains how Cursor's browser experience and isolated virtual machines shaped its computer use. Watch the interview ⬇️

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Catch some behind-the-scenes moments, plus quick interviews with speakers and attendees at @AgentConf 2026 in Warsaw.

[Mike @grabbou]

We believe in domain-specific models and domain-specific harnesses. At Callstack, we've been investing in both.

Excited to bring you the first piece of a broader family we're building. More to come!

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Apex is now available. Follow @apex__ai for live updates.

[Callstack Engineers @callstackio]

Announcing Apex: agentic coding model for mobile and web, specialized in React.

We built Apex from a single idea: can an open-weight model deliver frontier-level performance at lower cost?

Yes. Apex is SOTA in React Native and Next.js.

Try it now: https://t.co/nKbBxcmRFX

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Developer tools now have a second audience: the coding agents using them on behalf of people. David Mokos explains what @expo learned when it started designing its platform for both human developers and AI agents.

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Trying to force an LLM into perfectly deterministic behavior misses what it does best. Jakub Kuzimski shows how Allegro built a software factory around structured specifications, specialized agents, and explicit decisions instead.

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

A general-purpose agent can take on more than isolated coding tasks. Nick Miller shows how Grok Bot uses a cloud computer, company context, and familiar tools to handle long-running work across research, communication, and software delivery.

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Agents can execute the same prompt-based skill again and again, spending tokens each time. Kent C. Dodds argues that repeated work belongs in deterministic software and demonstrates Kody, a personal software ecosystem designed to let any agent discover and run reusable capabilities.

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Software development is moving from hand-written implementation toward systems where engineers direct agents, shape context, and judge the result. In the Agent Conf 2026 keynote, Mike Grabowski and Michał Pierzchała share how @callstackio is adapting to that shift.

Follow @apex__ai and @agent_device for real-time updates.

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

@watchful_toast So many pierogis, so little time.

[Plain Concepts @plainconcepts]

Last week, our colleagues Andoni Santamaria and Felipe Ugena attended @AgentConf in Warsaw.

🔹 Specialized models
🔹 Multi-agent coordination
🔹 Observability
🔹 Production-ready agentic systems
and more!

@callstackio
https://t.co/DINeQbQfAd

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Levan’s talk is now ou YT

[Levan Kvirkvelia @levan]

When models get smarter so fast, how do you even design a product around them?

Shared how we do it at Rork in my @AgentConf talk!

[Ivana Huckova @ivanahuckova]

Had a great time at @AgentConf with @svennergr talking about how @grafana’s Agent Observability can help us, and everyone else building agents 🫵, build agents they can trust.

The video is out now! 🎥👇

https://t.co/htTizIpiHD

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

🍿

[kitze 🛠️ tinkerer.club @thekitze]

a recording of my new talk "The End Of Apps" is now live so grab some popcorn 🍿 https://t.co/PR8Wfez9ix