--- title: "Codex and Subagents — Vaibhav Srivastav & Katia Gil Guzman, OpenAI" source_name: "AI Engineer" original_url: "https://www.youtube.com/watch?v=MhHEGMFCEB0" canonical_url: "https://www.traeai.com/articles/7ec55928-1413-4b2f-9299-406a57f1115f" content_type: "video" language: "其他" score: 0 tags: [] published_at: "2026-04-29T16:00:06+00:00" created_at: "2026-04-30T09:26:35.222975+00:00" --- # Codex and Subagents — Vaibhav Srivastav & Katia Gil Guzman, OpenAI Canonical URL: https://www.traeai.com/articles/7ec55928-1413-4b2f-9299-406a57f1115f Original source: https://www.youtube.com/watch?v=MhHEGMFCEB0 ## Summary 该链接指向的是一个YouTube视频页面，而非一篇技术文章。无法从提供的内容中提取出有效的技术信息。 ## Key Takeaways - 该链接指向的是一个YouTube视频页面，而非一篇技术文章 - 无法从提供的内容中提取出有效的技术信息 ## Content Title: Codex and Subagents — Vaibhav Srivastav & Katia Gil Guzman, OpenAI URL Source: http://www.youtube.com/watch?v=MhHEGMFCEB0 Markdown Content: # Codex and Subagents — Vaibhav Srivastav & Katia Gil Guzman, OpenAI - YouTube Back [![Image 1](http://www.youtube.com/watch?v=MhHEGMFCEB0)](http://www.youtube.com/ "YouTube Home") Skip navigation Search Search with your voice [](http://www.youtube.com/watch?v=MhHEGMFCEB0) [Sign in](https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26app%3Ddesktop%26hl%3Den%26next%3Dhttps%253A%252F%252Fwww.youtube.com%252Fwatch%253Fv%253DMhHEGMFCEB0&hl=en&ec=65620) [![Image 2](http://www.youtube.com/watch?v=MhHEGMFCEB0)](http://www.youtube.com/ "YouTube Home") [](http://www.youtube.com/watch?v=MhHEGMFCEB0) [](http://www.youtube.com/watch?v=MhHEGMFCEB0) [](http://www.youtube.com/watch?v=MhHEGMFCEB0) [](http://www.youtube.com/watch?v=MhHEGMFCEB0) [Codex and Subagents — Vaibhav Srivastav & Katia Gil Guzman, OpenAI](http://www.youtube.com/watch?v=MhHEGMFCEB0) [](http://www.youtube.com/watch?v=MhHEGMFCEB0) Tap to unmute 2x [![Image 3](http://www.youtube.com/watch?v=MhHEGMFCEB0)](http://www.youtube.com/watch?v=MhHEGMFCEB0) ## Codex and Subagents — Vaibhav Srivastav & Katia Gil Guzman, OpenAI AI Engineer 6,092 views 17 hours ago [](http://www.youtube.com/watch?v=MhHEGMFCEB0) Search Copy link Info Shopping ![Image 4](http://www.youtube.com/watch?v=MhHEGMFCEB0) [![Image 5](http://www.youtube.com/watch?v=MhHEGMFCEB0)](http://www.youtube.com/watch?v=MhHEGMFCEB0) If playback doesn't begin shortly, try restarting your device. • You're signed out Videos you watch may be added to the TV's watch history and influence TV recommendations. 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Please try again later. ![Image 6](http://www.youtube.com/watch?v=MhHEGMFCEB0) 0:00 [](http://www.youtube.com/watch?v=MhHEGMFCEB0)[](https://www.youtube.com/watch?v=LCEmiRjPEtQ "Next (SHIFT+n)") 0:00 / 0:00 Live •Watch full video • • [29:49 Andrej Karpathy: From Vibe Coding to Agentic Engineering Sequoia Capital 149K views • 18 hours ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=96jN2OCOfLs)[40:57 Demis Hassabis: Agents, AGI & The Next Big Scientific Breakthrough Y Combinator 50K views • 19 hours ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=JNyuX1zoOgU)[1:30:49 Last Week in AI #242 - ChatGPT Images 2.0, Qwen 3.6 Max, Kimi-K2.6 Last Week in AI 64 views • 2 hours ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=1wiKGqRxAf0)[28:50 Learn 95% of OpenAI Codex in 30 minutes Riley Brown 31K views • 1 day ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=474wZZHoWN4)[2:13:41 How GPT-5, Claude, and Gemini are actually trained and served – Reiner Pope Dwarkesh Patel 80K views • 16 hours ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=xmkSf5IS-zw)[17:27 Deepseek is a problem Matthew Berman 52K views • 9 hours ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=epzzALZ8oYo)[1:36:30 Full Walkthrough: Workflow for AI Coding — Matt Pocock AI Engineer and Matt Pocock 216K views • 5 days ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=-QFHIoCo-Ko)[1:03:20 Build & deploy AI-powered apps — Paige Bailey, Google DeepMind AI Engineer 2.3K views • 19 hours ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=G_bHFmEAarM)[25:53 Claude Code best practices | Code w/ Claude Anthropic 446K views • 8 months ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=gv0WHhKelSE)[20:13 Everything I Learned Training Frontier Small Models — Maxime Labonne, Liquid AI AI Engineer 10K views • 21 hours ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=fLUtUkqYHnQ)[1:23:37 Building your own software factory — Eric Zakariasson, Cursor AI Engineer 13K views • 1 day ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=rnDm57Py54A)[39:32 Andrej Karpathy: Software Is Changing (Again)Y Combinator 2.4M views • 10 months ago Live Playlist ()Mix (50+)](https://www.youtube.com/watch?v=LCEmiRjPEtQ) Sign in to confirm you’re not a bot This helps protect our community. 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In this workshop, Vaibhav and Katia show how it becomes a …...more ...more How this was made Auto-dubbed Audio tracks for some languages were automatically generated. [Learn more](http://support.google.com/youtube/answer/15569972?hl=en) ## Key moments View all [![Image 8](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Introduction to the workshop and speakers #### Introduction to the workshop and speakers 0:14](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=14s) #### [Introduction to the workshop and speakers](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=14s) 0:14 [![Image 9](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### What is Codex? (Overview of software engineering agent capabilities) #### What is Codex? (Overview of software engineering agent capabilities) 1:48](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=108s) #### [What is Codex? (Overview of software engineering agent capabilities)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=108s) 1:48 [![Image 10](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Foundation models (GPT-5.3, Spark, GPT-5.4) #### Foundation models (GPT-5.3, Spark, GPT-5.4) 2:18](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=138s) #### [Foundation models (GPT-5.3, Spark, GPT-5.4)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=138s) 2:18 [![Image 11](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### The evolution of models and performance improvements (Websockets, Fast Mode) #### The evolution of models and performance improvements (Websockets, Fast Mode) 4:11](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=251s) #### [The evolution of models and performance improvements (Websockets, Fast Mode)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=251s) 4:11 [![Image 12](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Codex app features, projects, and work trees #### Codex app features, projects, and work trees 7:04](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=424s) #### [Codex app features, projects, and work trees](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=424s) 7:04 [![Image 13](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Automations overview #### Automations overview 8:37](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=517s) #### [Automations overview](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=517s) 8:37 [![Image 14](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Plugins: Skills, apps, and MCP servers #### Plugins: Skills, apps, and MCP servers 12:28](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=748s) #### [Plugins: Skills, apps, and MCP servers](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=748s) 12:28 [![Image 15](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Game and Web development plugins (Playwright and Image Gen) #### Game and Web development plugins (Playwright and Image Gen) 15:13](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=913s) #### [Game and Web development plugins (Playwright and Image Gen)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=913s) 15:13 Transcript Follow along using the transcript. Show transcript [![Image 16](http://www.youtube.com/watch?v=MhHEGMFCEB0) ### AI Engineer 435K subscribers](http://www.youtube.com/@aiDotEngineer) [Videos](http://www.youtube.com/channel/UCLKPca3kwwd-B59HNr-_lvA/videos)[About](http://www.youtube.com/channel/UCLKPca3kwwd-B59HNr-_lvA/about) Show less ## Live chat replay See what others said about this video while it was live. Open panel [](http://www.youtube.com/watch?v=MhHEGMFCEB0) # Codex and Subagents — Vaibhav Srivastav & Katia Gil Guzman, OpenAI 6,092 views 6K views Premiered 17 hours ago 184 Share Save Download Download ## 9 Comments Sort comments Sort by [Top Show featured comments](http://www.youtube.com/watch?v=MhHEGMFCEB0)[Newest Show recent comments, including potential spam](http://www.youtube.com/watch?v=MhHEGMFCEB0) ![Image 17: Default profile photo](https://yt3.ggpht.com/a/default-user=s48-c-k-c0x00ffffff-no-rj) Add a comment... ![Image 18](https://yt3.ggpht.com/ytc/AIdro_mNzESXvbgVKMuZuK5qg5DYepunLxcLosJsWs_5Vgs=s88-c-k-c0x00ffffff-no-rj) ### [@MovingFwrd](http://www.youtube.com/@MovingFwrd) [14 hours ago](http://www.youtube.com/watch?v=MhHEGMFCEB0&lc=Ugzex1uzCYqfTgmjkNF4AaABAg) Thank you for sharing Show less Read more Like Dislike Reply ![Image 19](https://yt3.ggpht.com/BQUYgqZ36fQ5XenNKAzDTfjzPyXadxJdDxAUOmFAQa0vsZgIm1dYkMSCipvrLvU898txHtjvtQ=s88-c-k-c0x00ffffff-no-rj) ### [@Sunil_017](http://www.youtube.com/@Sunil_017) [15 hours ago](http://www.youtube.com/watch?v=MhHEGMFCEB0&lc=UgygwnfZ5NAV5E-u-C54AaABAg) Everything works except when there is a Demo Show less Read more Like 2 Dislike Reply ![Image 20](https://yt3.ggpht.com/ajVemEB89DAOemsbfuMY6ZOWXJAACx3cbty9z21jeqRKODaVkDBSRun1b1xfQJljEsziOWS_Mg=s88-c-k-c0x00ffffff-no-rj) ### [@aiDotEngineer](http://www.youtube.com/@aiDotEngineer) [@aiDotEngineer @aiDotEngineer](http://www.youtube.com/@aiDotEngineer)[15 hours ago](http://www.youtube.com/watch?v=MhHEGMFCEB0&lc=UgzVhDMrMmfsdG0Gcw14AaABAg) more details: [https://x.com/reach_vb/status/2033636057690800452?s=20](https://www.youtube.com/redirect?event=comments&redir_token=QUFFLUhqa1NBR1g4ZUlUbVdPVXNfcEJLNE5KTmRfSnlod3xBQ3Jtc0tuRTFnS184V2o4YVl1UFBWLWN4M2c5aWxXMDhiTHJTYVgtSDRnN2UtVFdqWENWcVdFcjVPM1VaQjBGNDFWMlc5bmQwd00wR1VkS2RYdkcxMms1TG9IdGN3Z2tVM2l4TlBQUTVuN2EwRVBFd1BKaFBqTQ&q=https%3A%2F%2Fx.com%2Freach_vb%2Fstatus%2F2033636057690800452%3Fs%3D20) Show less Read more Like Dislike Reply ![Image 21](https://yt3.ggpht.com/ytc/AIdro_mjWhjF67b55742_kt-3Se5smV0odYHig6w7jir77qiK8E=s88-c-k-c0x00ffffff-no-rj) ### [@sharank](http://www.youtube.com/@sharank) [15 hours ago](http://www.youtube.com/watch?v=MhHEGMFCEB0&lc=Ugx-YlU9yMRKzlDnorp4AaABAg) Those uhm fillers were super distracting Show less Read more Like 7 Dislike Reply ![Image 22](https://yt3.ggpht.com/0aL4mOlQ_o3SYW9K3eUh7pyPgY7IF99zMqYNJs6-3oxVRlFvllqZQvvQOS-GrLRQMwgKN9zW=s88-c-k-c0x00ffffff-no-rj) ### [@anjaney_007](http://www.youtube.com/@anjaney_007) [16 hours ago](http://www.youtube.com/watch?v=MhHEGMFCEB0&lc=UgyE9zXeWQbNr5fI3j14AaABAg) [23:13](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1393s) the fact that it didn't create a scheduled task even after saying “PLEASE” ![Image 23: 😅](https://www.youtube.com/s/gaming/emoji/7ff574f2/emoji_u1f605.png) goes on to show how uncertain the behaviour of LLMs is! Show less Read more Like 3 Dislike Reply ![Image 24](https://yt3.ggpht.com/mW_VgMtDcbDkoFlRcGmkNUOuy9cMS3cvNv36i7CR6ZPFJCHR_9WMYNyvuKYFahHbwtbcDpW31wc=s88-c-k-c0x00ffffff-no-rj) ### [@ZincFist](http://www.youtube.com/@ZincFist) [8 hours ago](http://www.youtube.com/watch?v=MhHEGMFCEB0&lc=Ugx0tWFxlAUYIoqLnMx4AaABAg) what is the annoying popping sound Show less Read more Like 1 Dislike Reply ![Image 25](https://yt3.ggpht.com/jV1Cw2fYNHbkWYUtt-6BQM3_F1kWnogjLS71YxL-XGitKoQ6WIhPQ05MjL9nqX2awocE1n_6Tsk=s88-c-k-c0x00ffffff-no-rj) ### [@neptoniqcreations](http://www.youtube.com/@neptoniqcreations) [2 hours ago](http://www.youtube.com/watch?v=MhHEGMFCEB0&lc=UgyV1h0EWQOPlLeEleN4AaABAg) Very cohesive and nice reminders and reinforcement for concepts and principles to engage with. A very intellectually charitable and virtuous pair of wonderful people providing a catalyst for innovation and curious altruistic explorations to safe guard naive apathy and embrace proper foundational layers of logic to contribute and influence everyone listening for success with their nice product Show less Read more Like Dislike Reply ![Image 26](https://yt3.ggpht.com/ytc/AIdro_kuiAdIJpBgaDtIRX1RdKfVwNP3E_fiBd_lteySL7s=s88-c-k-c0x00ffffff-no-rj) ### [@RajeshKumar-ft8yc](http://www.youtube.com/@RajeshKumar-ft8yc) [4 hours ago](http://www.youtube.com/watch?v=MhHEGMFCEB0&lc=Ugw8f-ZMOzZQL0oqiy94AaABAg) AI = SKYNET![Image 27: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0)![Image 28: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0)![Image 29: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0)![Image 30: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0)![Image 31: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0)![Image 32: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0)![Image 33: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0)![Image 34: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0)![Image 35: 😡](http://www.youtube.com/watch?v=MhHEGMFCEB0) Show less Read more Like Dislike Reply Top is selected, so you'll see featured comments ## Comments 9 [Top Show featured comments](http://www.youtube.com/watch?v=MhHEGMFCEB0)[Newest Show recent comments, including potential spam](http://www.youtube.com/watch?v=MhHEGMFCEB0) ## In this video Transcript ## Key moments [![Image 36](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Introduction to the workshop and speakers #### Introduction to the workshop and speakers 0:14](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=14s) #### [Introduction to the workshop and speakers](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=14s) 0:14 [![Image 37](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### What is Codex? (Overview of software engineering agent capabilities) #### What is Codex? (Overview of software engineering agent capabilities) 1:48](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=108s) #### [What is Codex? (Overview of software engineering agent capabilities)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=108s) 1:48 [![Image 38](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Foundation models (GPT-5.3, Spark, GPT-5.4) #### Foundation models (GPT-5.3, Spark, GPT-5.4) 2:18](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=138s) #### [Foundation models (GPT-5.3, Spark, GPT-5.4)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=138s) 2:18 [![Image 39](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### The evolution of models and performance improvements (Websockets, Fast Mode) #### The evolution of models and performance improvements (Websockets, Fast Mode) 4:11](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=251s) #### [The evolution of models and performance improvements (Websockets, Fast Mode)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=251s) 4:11 [![Image 40](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Codex app features, projects, and work trees #### Codex app features, projects, and work trees 7:04](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=424s) #### [Codex app features, projects, and work trees](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=424s) 7:04 [![Image 41](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Automations overview #### Automations overview 8:37](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=517s) #### [Automations overview](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=517s) 8:37 [![Image 42](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Plugins: Skills, apps, and MCP servers #### Plugins: Skills, apps, and MCP servers 12:28](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=748s) #### [Plugins: Skills, apps, and MCP servers](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=748s) 12:28 [![Image 43](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Game and Web development plugins (Playwright and Image Gen) #### Game and Web development plugins (Playwright and Image Gen) 15:13](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=913s) #### [Game and Web development plugins (Playwright and Image Gen)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=913s) 15:13 [![Image 44](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Demo: Game studio plugin and generating assets #### Demo: Game studio plugin and generating assets 16:26](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=986s) #### [Demo: Game studio plugin and generating assets](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=986s) 16:26 [![Image 45](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Demo: Google Drive plugin for codebase data #### Demo: Google Drive plugin for codebase data 17:23](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1043s) #### [Demo: Google Drive plugin for codebase data](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1043s) 17:23 [![Image 46](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Demo: Setting up automations for Slack and Gmail #### Demo: Setting up automations for Slack and Gmail 18:52](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1132s) #### [Demo: Setting up automations for Slack and Gmail](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1132s) 18:52 [![Image 47](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Code Review features and integration with GitHub #### Code Review features and integration with GitHub 27:14](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1634s&pp=0gcJCREDDuyUWbzu) #### [Code Review features and integration with GitHub](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1634s&pp=0gcJCREDDuyUWbzu) 27:14 [![Image 48](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Subagents: Parallelizing tasks and custom personas #### Subagents: Parallelizing tasks and custom personas 32:39](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1959s) #### [Subagents: Parallelizing tasks and custom personas](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1959s) 32:39 [![Image 49](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Demo: Using subagents to review persona files #### Demo: Using subagents to review persona files 36:18](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2178s) #### [Demo: Using subagents to review persona files](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2178s) 36:18 [![Image 50](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Creating custom subagents #### Creating custom subagents 44:52](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2692s) #### [Creating custom subagents](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2692s) 44:52 [![Image 51](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Bleeding edge features: Guardian approvals, hooks, and personality settings #### Bleeding edge features: Guardian approvals, hooks, and personality settings 49:29](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2969s) #### [Bleeding edge features: Guardian approvals, hooks, and personality settings](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2969s) 49:29 [![Image 52](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Codex security and Cloud Code plugin #### Codex security and Cloud Code plugin 56:11](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=3371s) #### [Codex security and Cloud Code plugin](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=3371s) 56:11 [![Image 53](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Q&A session #### Q&A session 57:10](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=3430s) #### [Q&A session](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=3430s) 57:10 Sync to video time ## Description Codex and Subagents — Vaibhav Srivastav & Katia Gil Guzman, OpenAI Codex is no longer just a coding assistant in a terminal. In this workshop, Vaibhav and Katia show how it becomes a full software engineering system, combining frontier models, the Codex app and CLI, plugins, automations, and subagents that can explore, review, and execute work in parallel. The session also dives into custom subagents: showing how specialized agents with different models, permissions, and tools can speed up code review, research, debugging, and long-running tasks while keeping control and safety in place. Speaker info: * Vaibhav Srivastav | [https://x.com/reach_vb](https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbmg3VjZENFJqUWJwSVhsR1gzSUVJMjVJTnM0d3xBQ3Jtc0tsMV96b0dQWlZLaWYzNzlaQUx0dllTdi1qR0N5RVd3TDlvVm9lUEVlVjhzdWpYUVEtZDJfUkxISmdJNF81MkEzNlVxSy0xSkpsWHdvczhvLXFDWklua2FKMVpsSE5fbWdjUDNQNXpoY252ZFFRYmFxYw&q=https%3A%2F%2Fx.com%2Freach_vb&v=MhHEGMFCEB0) * Katia Gil Guzman | [![Image 54](http://www.youtube.com/watch?v=MhHEGMFCEB0)/katiagilguzman](https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqa0R0WnpYbVZZYVQ2UDRnaWFxS1YwRTlqSjA4UXxBQ3Jtc0trWE5mbDg2bGZ0bkRDQy1mMzhIbS1SbzZLR3htdG1BNGFBNV94ZG9YSXlDUHBRcVlHTTNLR2Z4TlNQOWdUY0NOWUkxTkJvdF92azk5elRFZnFFM0w5OUt1SVVnYVp3c3ljclVqM3FWcjMzdWc1blAzVQ&q=https%3A%2F%2Fwww.linkedin.com%2Fin%2Fkatiagilguzman%2F&v=MhHEGMFCEB0) Timestamps ([0:14](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=14s)) Introduction to the workshop and speakers ([1:48](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=108s)) What is Codex? (Overview of software engineering agent capabilities) ([2:18](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=138s)) Foundation models (GPT-5.3, Spark, GPT-5.4) ([4:11](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=251s)) The evolution of models and performance improvements (Websockets, Fast Mode) ([7:04](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=424s)) Codex app features, projects, and work trees ([8:37](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=517s)) Automations overview ([12:28](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=748s)) Plugins: Skills, apps, and MCP servers ([15:13](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=913s)) Game and Web development plugins (Playwright and Image Gen) ([16:26](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=986s)) Demo: Game studio plugin and generating assets ([17:23](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1043s)) Demo: Google Drive plugin for codebase data ([18:52](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1132s)) Demo: Setting up automations for Slack and Gmail ([27:14](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1634s)) Code Review features and integration with GitHub ([32:39](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=1959s)) Subagents: Parallelizing tasks and custom personas ([36:18](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2178s)) Demo: Using subagents to review persona files ([44:52](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2692s)) Creating custom subagents ([49:29](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=2969s)) Bleeding edge features: Guardian approvals, hooks, and personality settings ([56:11](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=3371s)) Codex security and Cloud Code plugin ([57:10](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=3430s)) Q&A session…...more ...more Show less How this was made Auto-dubbed Audio tracks for some languages were automatically generated. [Learn more](http://support.google.com/youtube/answer/15569972?hl=en) ## Key moments View all [![Image 55](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Introduction to the workshop and speakers #### Introduction to the workshop and speakers 0:14](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=14s) #### [Introduction to the workshop and speakers](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=14s) 0:14 [![Image 56](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### What is Codex? (Overview of software engineering agent capabilities) #### What is Codex? (Overview of software engineering agent capabilities) 1:48](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=108s) #### [What is Codex? (Overview of software engineering agent capabilities)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=108s) 1:48 [![Image 57](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### Foundation models (GPT-5.3, Spark, GPT-5.4) #### Foundation models (GPT-5.3, Spark, GPT-5.4) 2:18](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=138s) #### [Foundation models (GPT-5.3, Spark, GPT-5.4)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=138s) 2:18 [![Image 58](http://www.youtube.com/watch?v=MhHEGMFCEB0) #### The evolution of models and performance improvements (Websockets, Fast Mode) #### The evolution of models and performance improvements (Websockets, Fast Mode) 4:11](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=251s) #### [The evolution of models and performance improvements (Websockets, Fast Mode)](http://www.youtube.com/watch?v=MhHEGMFCEB0&t=251s) 4:11 Transcript Follow along using the transcript. Show transcript [![Image 59](http://www.youtube.com/watch?v=MhHEGMFCEB0) ### AI Engineer 435K subscribers](http://www.youtube.com/@aiDotEngineer) [Videos](http://www.youtube.com/channel/UCLKPca3kwwd-B59HNr-_lvA/videos)[About](http://www.youtube.com/channel/UCLKPca3kwwd-B59HNr-_lvA/about) ## Transcript NaN / NaN Show chat replay [![Image 60](https://i.ytimg.com/vi/96jN2OCOfLs/hqdefault.jpg?sqp=-oaymwEmCKgBEF5IWvKriqkDGQgBFQAAiEIYAdgBAeIBCggYEAIYBjgBQAE=&rs=AOn4CLBZdp1cX62GE_0F_7p8NNyecd0HIQ) 29:49](http://www.youtube.com/watch?v=96jN2OCOfLs&pp=ugUEEgJlbg%3D%3D) ![Image 61](http://www.youtube.com/watch?v=MhHEGMFCEB0) ### [Andrej Karpathy: From Vibe Coding to Agentic Engineering](http://www.youtube.com/watch?v=96jN2OCOfLs&pp=ugUEEgJlbg%3D%3D) Sequoia Capital 149K views • 18 hours ago New [![Image 62](https://i.ytimg.com/vi/JNyuX1zoOgU/hqdefault.jpg?sqp=-oaymwEmCKgBEF5IWvKriqkDGQgBFQAAiEIYAdgBAeIBCggYEAIYBjgBQAE=&rs=AOn4CLDn0yBys-Of1HHHC6hqYyutUUpWPg) 40:57](http://www.youtube.com/watch?v=JNyuX1zoOgU&pp=ugUHEgVlbi1VUw%3D%3D) ![Image 63](http://www.youtube.com/watch?v=MhHEGMFCEB0) ### [Demis Hassabis: Agents, AGI & The Next Big Scientific Breakthrough](http://www.youtube.com/watch?v=JNyuX1zoOgU&pp=ugUHEgVlbi1VUw%3D%3D) Y Combinator 50K views • 19 hours ago New [![Image 64](https://i.ytimg.com/vi/1wiKGqRxAf0/hqdefault.jpg?sqp=-oaymwEmCKgBEF5IWvKriqkDGQgBFQAAiEIYAdgBAeIBCggYEAIYBjgBQAE=&rs=AOn4CLB2-3vLFxSHjIGNHdx7erNMWjTNtQ) 1:30:49](http://www.youtube.com/watch?v=1wiKGqRxAf0) ![Image 65](http://www.youtube.com/watch?v=MhHEGMFCEB0) ### [Last Week in AI #242 - 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