Kazuhiro Sera

Developer Experience @OpenAI | ex-Slack SDK & DevRel, SmartNews VPoE | ja-jp 🇯🇵👉 @seratch_ja

[Kazuhiro Sera @seratch]

New post on the OpenAI Developer Blog: how we use skills for open-source maintenance, from planning and coding to testing and release-readiness checks with GitHub Actions. Hope it's useful for your projects too 🙌 https://t.co/KkoTaOUutn

[Kazuhiro Sera @seratch]

I was just thinking back to how tough it was to complete this refactoring work six years ago: https://t.co/yudmfQsAob

Now that we have Codex, doing something similar in 2026 would be drastically easier. What a great time to be a software developer.

[Gabriel Chua @gabrielchua]

or in the Agents SDK (@seratch @seratch_ja)

https://t.co/24gvNGrbKs

[Kazuhiro Sera @seratch]

Earlier today, I started managing my hobby OpenClaw setup more easily from mobile, using my personal Codex on the same host

[jason @jxnlco]

To celebrate the realtime model release, @seratch has updated RealtimeAgent to use gpt-realtime-2 by default in the Agents SDK

📷  (WebRTC & WebSocket): https://t.co/NPjkFwEJ3r

📷  (WebSocket): https://t.co/tfD6u7nJGm

[dominik kundel @dkundel]

If you want to try it out Sandbox Agents are now also in the Agents SDK for TypeScript!

Thanks @seratch 🙌

https://t.co/QifI7wTIvJ

[Kazuhiro Sera @seratch]

Hope TS developers enjoy this one! 🙌

[OpenAI Developers @OpenAIDevs]

The updated Agents SDK is now available in TypeScript, with support for sandbox agents and an open-source harness built in.

[Kazuhiro Sera @seratch]

I like @jxnlco saying Chappy 😆

[OpenAI Developers @OpenAIDevs]

You can build interactive applications with gpt-realtime-1.5, so users can control app state more naturally with voice.

Hi Chappy 👋

[OpenAI @OpenAI]

Codex for (almost) everything.

It can now use apps on your Mac, connect to more of your tools, create images, learn from previous actions, remember how you like to work, and take on ongoing and repeatable tasks.

[konsto @codestantine]

Excited about the Agents SDK updates we just launched.

Check out my cookbook on using it with sandboxes for code migration:

https://t.co/Fz7cknz64d

[jason @jxnlco]

https://t.co/58S7LIJMTq

[OpenAI Developers @OpenAIDevs]

Build long-running agents with more control over agent execution.

New capabilities in the Agents SDK:
• Run agents in controlled sandboxes
• Inspect and customize the open-source harness
• Control when memories are created and where they’re stored

[Steve ☕️ @stevendcoffey]

Today, we’re launching a Rather Large™ update to the OpenAI Agents SDK.

Agents SDK now allows you to scale Codex-style agents in production, without building the whole harness yourself. We’ve brought all of the stuff of modern agents: computer-use, skills, memory, compaction, and more to the same platforms you’re already using.

[Kazuhiro Sera @seratch]

@Eduardopto @OpenAIDevs In this context, the end-to-end tests verify that there are no regressions in existing production API calls (yes, this could be somewhat specific to SDKs). Also, checking the full diff from the previous release tag helps us detect any breaking changes for existing SDK users.

[OpenAI Developers @OpenAIDevs]

We use skills to maintain our Agents SDK repositories through repeatable workflows for verification, integration tests, release checks, and PR handoff.

Here’s how it works:
https://t.co/DyuEj35D1H

[Kazuhiro Sera @seratch]

@coreyching @hirohasusan 嬉しいコメントをいただき、ありがとうございます！🙏

[Kazuhiro Sera @seratch]

OpenAI Agents SDK TS 0.5.0:
https://t.co/PjhQ4BZNF2

[Kazuhiro Sera @seratch]

WebSocket mode for the OpenAI Responses API is now natively supported in the OpenAI Agents SDK!

Check the release notes and the linked resources in the thread 🧵
https://t.co/4ZGN1SYvcm

[Kazuhiro Sera @seratch]

OpenAI Agents SDK Python 0.10.0:
https://t.co/prorO72XEF

[Kazuhiro Sera @seratch]

Skills cookbook: https://t.co/GTVVQ8x4pH

[Kazuhiro Sera @seratch]

👋As you might expect, OpenAI Agents SDK now supports hosted shell tool + skills in an authentic way!

[Kazuhiro Sera @seratch]

Skills: https://t.co/Crn59e19bN