Developer Experience @OpenAI | ex-Slack SDK & DevRel, SmartNews VPoE | ja-jp 🇯🇵👉 @seratch_ja
Joined December 2010
- Tweets 2,900
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Mar 9
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 🙌 developers.openai.com/blog/s…
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May 22
I was just thinking back to how tough it was to complete this refactoring work six years ago: github.com/slackapi/python-s…
Now that we have Codex, doing something similar in 2026 would be drastically easier. What a great time to be a software developer.
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Kazuhiro Sera retweeted
May 20
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May 15
Earlier today, I started managing my hobby OpenClaw setup more easily from mobile, using my personal Codex on the same host
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To celebrate the realtime model release, @seratch has updated RealtimeAgent to use gpt-realtime-2 by default in the Agents SDK
📷 (WebRTC & WebSocket): openai.github.io/openai-agen…
📷 (WebSocket): openai.github.io/openai-agen…
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Kazuhiro Sera retweeted
May 5
If you want to try it out Sandbox Agents are now also in the Agents SDK for TypeScript!
Thanks @seratch 🙌
github.com/openai/openai-age…
May 3
Agents SDK 2.0 is underrated
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May 5
Hope TS developers enjoy this one! 🙌
May 5
The updated Agents SDK is now available in TypeScript, with support for sandbox agents and an open-source harness built in.
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Apr 28
I like @jxnlco saying Chappy 😆
Apr 27
You can build interactive applications with gpt-realtime-1.5, so users can control app state more naturally with voice.
Hi Chappy 👋
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Kazuhiro Sera retweeted
Apr 15
Excited about the Agents SDK updates we just launched.
Check out my cookbook on using it with sandboxes for code migration:
developers.openai.com/cookbo…
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Kazuhiro Sera retweeted
Apr 15
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
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Kazuhiro Sera retweeted
Apr 15
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.
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Mar 9
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:
developers.openai.com/blog/s…
Mar 9
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 🙌 developers.openai.com/blog/s…
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Feb 23
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 🧵
developers.openai.com/api/do…
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Feb 11
👋As you might expect, OpenAI Agents SDK now supports hosted shell tool skills in an authentic way!
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