GenAI PM
tool87 mentions· Updated Aug 8, 2026

Codex

An AI coding tool used by the speaker in the Total Recall example. It is part of the stack of agent tools used for coding-session memory and workflow recovery.

Key Highlights

  • Codex appears in the newsletter as more than a code assistant: it is used to build reusable agents, automate workflows, and recover prior work across sessions.
  • Real examples include PR review bots, scheduled Slack/email/Linear triage, voice-matched writing skills, and UI test generation via integrations.
  • Its importance to AI PMs comes from how it combines coding help with memory, orchestration, integrations, and workflow automation.
  • Codex is frequently mentioned alongside tools like Cursor, Claude, tmux, GitHub, and Total Recall, indicating its role in multi-agent developer stacks.

Codex

Overview

Codex is an AI coding tool in the OpenAI ecosystem that appears across a wide range of hands-on workflows: code generation, pull-request review agents, reusable automation skills, education plugins, and long-running terminal-based agent sessions. In the referenced "Total Recall" example, Codex is part of a multi-agent stack alongside tools like Cursor, Manos, and Claude, where it contributes to coding-session memory, workflow recovery, and ongoing development work.

For AI Product Managers, Codex matters because it is showing up not just as a code assistant, but as an operational substrate for building agentic software workflows. The newsletter mentions portray it as a tool used to create GitHub bots, analyze communication data, automate knowledge work across Slack, email, and Linear, plug into testing systems, and integrate with broader ChatGPT Work and enterprise/education experiences. That makes Codex relevant to PMs evaluating how coding agents evolve from pair-programmers into persistent, workflow-aware product infrastructure.

Key Developments

  • 2026-07-26: Peter Yang previewed an OpenAI DevEx workflow where Jason used Codex to automate a "chief of staff" function across Slack and email, convert prior sessions into reusable skills and workflows, and create learning sites.
  • 2026-07-27: Peter Yang shared a "heartbeat" workflow in which Codex checked email, Slack, and Linear at scheduled times each day, prioritized tasks, included links, integrated with Linear, and pre-drafted replies.
  • 2026-07-28: Peter Yang showed how Jason used Codex to analyze a week of Slack messages and build a "/write-like-me" skill that drafted responses in his voice for different audiences.
  • 2026-07-29: Jason Zhou described keeping Codex and other LLM subagents alive in tmux sessions to avoid expensive context reloads, using tmux commands as a universal orchestration layer for terminal-based agents.
  • 2026-07-30: OpenAI said participants in ChatGPT for Academic Researchers would get access to ChatGPT, ChatGPT Work, and Codex, including GPT-5.6 Sol Pro at launch, with default training opt-out.
  • 2026-07-31: Momentic was highlighted as a testing tool that plugs into Claude Code or Codex to generate and run UI tests for web, iOS, and Android apps from natural-language test descriptions.
  • 2026-08-04: In a workflow demo featuring ChatGPT Work automation, Codex was part of the broader OpenAI tool stack used by Nick Baumann to automate browser-based and content-production tasks.
  • 2026-08-05: OpenAI launched three education plugins for ChatGPT Work and Codex—K–12 Educator, College Educator, and College Student—through ChatGPT Edu and ChatGPT for Teachers, connecting to documents, calendars, and approved apps.
  • 2026-08-06: A Vercel Eve agent called Merge Mommy was created in Codex from a prompt requesting a GitHub bot that reviews PRs after CI passes, scores risk, auto-approves low-risk PRs, and coordinates Slack/GitHub setup with browser assistance.
  • 2026-08-08: In the Total Recall example, the speaker said they use Codex, Cursor, Manos, and Claude; Total Recall searched prior agent sessions to recover skills, workflows, and chronological project changes across coding sessions.

Relevance to AI PMs

1. Prototype agentic product workflows faster: Codex is being used to turn prompts into operational agents such as PR reviewers, scheduled work triage assistants, and communication-drafting systems. PMs can use it to validate workflow automation concepts before dedicating engineering resources.

2. Design persistent, reusable AI skills: Several mentions show Codex being used to transform prior sessions, Slack history, and repeated routines into reusable skills. This is directly relevant to PMs defining memory, personalization, and workflow recovery features for AI-native products.

3. Evaluate AI tooling as part of a broader stack: Codex appears connected to terminal orchestration, testing tools, browser actions, GitHub, Slack, Linear, and education/work suites. PMs can use it as a case study in how coding agents need integrations, context persistence, and governance—not just model quality—to deliver product value.

Related

  • OpenAI / openai-codex: Codex is part of OpenAI's product ecosystem and is often discussed alongside OpenAI model families and developer tooling.
  • ChatGPT / ChatGPT Work / ChatGPT Pro: Codex is increasingly positioned adjacent to broader ChatGPT workflows, especially for work, research, and institutional use cases.
  • Cursor, Claude Code, Claude, Gemini CLI: These are adjacent coding-agent or developer-assistant tools frequently compared with or used alongside Codex in multi-tool stacks.
  • GitHub, Slack, Linear, Gmail: These integrations illustrate Codex's role in operational workflows beyond pure coding, including review, communication, and task management.
  • tmux: Mentioned as a lightweight orchestration protocol for keeping Codex-based terminal agents persistent across sessions.
  • Momentic: Shows how third-party tools can plug into Codex for automated testing workflows.
  • Total Recall: Demonstrates the memory-layer pattern where Codex operates as one agent/tool within a session-aware workflow recovery system.
  • GPT-5.3 Codex / GPT-5.5 / GPT-5.6 Sol Pro: These related model references suggest Codex is tied to evolving model variants and capability tiers within OpenAI's stack.

Newsletter Mentions (87)

2026-08-08
The speaker uses Codex, Cursor, Manos, and Claude.

#7 ▶️ Total Recall: The Invisible Memory Layer for AI Agents SyntaxGTM Total Recall runs as a background memory layer for AI agents, storing session instructions, decisions, and work history so queries can recover workflows, skills, and chronological project changes across coding sessions. A query asking “Can you recall how I upload videos to YouTube?” retrieved an older YouTube upload skill, including its Drive-upload work, an Auphonic update, and consolidation of an archived skill into a newer upload-to-YouTube skill from roughly three months earlier. Total Recall can search all agent sessions and produce a date-based, Git-log-style list of changes for client reporting, including work performed without a GitHub repository or properly maintained commits; the speaker uses Codex, Cursor, Manos, and Claude. For the vague request to recall the latest three skills, Total Recall issued 10 queries and identified an Agent Mail inbox workflow, a sponsor CRM skill for five to ten daily sponsor requests, and a skill related to an autonomous AI marketing-consultancy/product-launch project.

2026-08-06
The agent was created in Codex from an initial prompt requesting a GitHub bot that reviews PRs after CI checks are green, grades them low/medium/high risk, and automatically approves low-risk PRs; Chrome browser use handled Slack bot and GitHub app configuration, with the user completing 2FA and save actions.

How Merge Mommy scores pull-request risk #1 ▶️ Build an AI code review agent with Vercel Eve (full tutorial) How I AI Podcast A Vercel Eve agent named Merge Mommy reads GitHub pull-request diffs after CI checks pass, scores risk across six components, approves low-risk PRs, and sends Slack notifications for final human merge actions or escalations. The agent was created in Codex from an initial prompt requesting a GitHub bot that reviews PRs after CI checks are green, grades them low/medium/high risk, and automatically approves low-risk PRs; Chrome browser use handled Slack bot and GitHub app configuration, with the user completing 2FA and save actions.

2026-08-05
On August 4, 2026 OpenAI launched three education plugins for ChatGPT Work and Codex—K–12 Educator, College Educator, and College Student—available through ChatGPT Edu and ChatGPT for Teachers, which connect to documents, calendars and approved apps to help teachers design differentiated lessons, syllabi, assessments and help students create personalized study guides, quizzes, flashcards and visual explanations.

#2 📝 OpenAI News New ways to learn and teach with ChatGPT Work and Codex - On August 4, 2026 OpenAI launched three education plugins for ChatGPT Work and Codex—K–12 Educator, College Educator, and College Student—available through ChatGPT Edu and ChatGPT for Teachers, which connect to documents, calendars and approved apps to help teachers design differentiated lessons, syllabi, assessments and help students create personalized study guides, quizzes, flashcards and visual explanations. OpenAI says ChatGPT Edu (introduced 2024) and ChatGPT for Teachers (introduced 2025 and free for verified U.S. K–12 educators) provide institution-managed privacy and controls, the K–12 plugin integrates with Learning Commons, and OpenAI is the founding partner in the National Academy for AI Instruction aiming to equip 400,000 K–12 educators.

2026-08-04
How this OpenAI engineer uses Codex + ChatGPT Work to automate everything How I AI Podcast Nick Baumann uses ChatGPT Work voice to delegate browser-based travel and expense tasks, ChatGPT Sites to build and privately share a searchable website, and a custom UGC Video plugin to turn raw clips into edited vertical videos.

#9 ▶️ How this OpenAI engineer uses Codex + ChatGPT Work to automate everything How I AI Podcast Nick Baumann uses ChatGPT Work voice to delegate browser-based travel and expense tasks, ChatGPT Sites to build and privately share a searchable website, and a custom UGC Video plugin to turn raw clips into edited vertical videos. Using a hotkey-triggered voice orb that can read the current screen via an appshot, ChatGPT Work checked a Slack offsite message, checked calendar availability through plugins, created a travel task for SFO-to-Paris flights and a policy-compliant hotel in Navon, and created a separate task to find an Amazon microphone receipt and stage—without submitting—an expense report. ChatGPT Sites supports a SQL database, S3 file storage, and environment variables; the site built during the conversation used How I AI’s purple, black, and white branding, categorized video tips by AI tool and function, and could be shared publicly or restricted to individual email addresses through ChatGPT login. Nick Baumann’s UGC Video plugin processed roughly 20 clips in the live run by extracting transcripts, reviewing frames, selecting takes, and assembling an organic vertical video; for another workflow, he uploaded 50 or 60 clips for three videos, dictated the narratives, left it running overnight, and returned to completed outputs, including automated moving blurs over sensitive on-screen material. Also covered by: @claire vo

2026-07-31
Santiago introduced Momentic—a tool you install with `npx @momentic/wizard@latest` that plugs into Claude Code or Codex to generate and run UI tests for web, iOS, and Android apps 100× faster by simply describing your desired test cases.

#14 𝕏 Santiago introduced Momentic—a tool you install with `npx @momentic/wizard@latest` that plugs into Claude Code or Codex to generate and run UI tests for web, iOS, and Android apps 100× faster by simply describing your desired test cases. #15 𝕏 Guillermo Rauch shaved off up to ~5 s from Vercel’s end-to-end CLI→Live URL deploy process and highlights that you can integrate all of Vercel’s infra via CLI/MCP/API to build custom software factories.

2026-07-30
OpenAI is launching ChatGPT for Academic Researchers to give 100,000 scientists, mathematicians, and engineers free access to frontier models—starting with 10,000 this summer at institutions including the Institute for Advanced Study and École normale supérieure—with participants able to invite up to four collaborators, access ChatGPT/ChatGPT Work/Codex (including GPT‑5.6 Sol Pro at launch), and opt out of using their data to train models by default.

GenAI PM Daily July 30, 2026 GenAI PM Daily 🎧 Listen to this brief 3 min listen Today's top 17 insights for PM Builders from Blogs and X. OpenAI launches GPT-5.6 Sol, Terra and Luna #1 📝 OpenAI News How GPT-5.6 fuses frontier intelligence with frontier efficiency - OpenAI's GPT‑5.6 family balances capability and cost: flagship GPT‑5.6 Sol outperforms Claude Fable 5 on the Artificial Analysis Coding Agent Index at less than half the cost, Terra matches GPT‑5.5 on intelligence benchmarks at half the price, and Luna is priced 80% lower than Sol. By using Sol to autonomously rewrite Triton/Gluon kernels, tune load‑balancing and KV‑cache configurations, and improve speculative decoding, OpenAI reports a 20% reduction in end-to-end serving costs and more than a 15% gain in token‑generation efficiency. #2 📝 OpenAI News Accelerating scientific discovery with ChatGPT for Academic Researchers - OpenAI is launching ChatGPT for Academic Researchers to give 100,000 scientists, mathematicians, and engineers free access to frontier models—starting with 10,000 this summer at institutions including the Institute for Advanced Study and École normale supérieure—with participants able to invite up to four collaborators, access ChatGPT/ChatGPT Work/Codex (including GPT‑5.6 Sol Pro at launch), and opt out of using their data to train models by default.

2026-07-29
Jason Zhou : keeps LLM subagents (Claude, Codex, Pi, Grok) alive in tmux sessions to dodge costly context reloads, and uses tmux’s new-session, send-keys, and capture-pane as a universal protocol to orchestrate any terminal-based agent.

#7 𝕏 Jason Zhou : keeps LLM subagents (Claude, Codex, Pi, Grok) alive in tmux sessions to dodge costly context reloads, and uses tmux’s new-session, send-keys, and capture-pane as a universal protocol to orchestrate any terminal-based agent.

2026-07-28
Peter Yang shows how Jason used Codex to analyze a week of his Slack messages and build a “/write-like-me” skill that drafts replies in his voice, tailored for coworkers, executives, and external users.

GenAI PM Daily July 28, 2026. Codex is mentioned as the engine for analyzing messages and generating a voice-matched writing skill.

2026-07-27
Peter Yang turned Codex into a “heartbeat” by having it check his email, Slack, and Linear at 9 am, 1 pm, and 5 pm to prioritize tasks—and then gradually added preferences like including links, integrating with Linear, and pre-drafting his Slack replies and emails.

#1 𝕏 Peter Yang turned Codex into a “heartbeat” by having it check his email, Slack, and Linear at 9 am, 1 pm, and 5 pm to prioritize tasks—and then gradually added preferences like including links, integrating with Linear, and pre-drafting his Slack replies and emails.

2026-07-26
#11 in Peter Yang previews how OpenAI DevEx engineer Jason built a Codex-driven workflow—automating a “chief of staff” across Slack and email, converting past sessions into reusable skills and workflows, and spinning up learning sites (e.g., drums).

GenAI PM Daily July 26, 2026 GenAI PM Daily 🎧 Listen to this brief 3 min listen Today's top 18 insights for PM Builders, ranked by relevance from X, Blogs, and LinkedIn. Perplexity unveils CLI for live web data #1 𝕏 OpenAI calls the Hugging Face incident an unprecedented AI safety event and is reviewing it with external advisors and its Safety and Security Committee. It will publish a technical report of findings in the coming weeks. #2 𝕏 Demis Hassabis reports that Gemma 4 models have been downloaded over 300 million times, driving the total Gemma open model series downloads past 900 million. #3 𝕏 Sundar Pichai celebrates Google’s commitment to open source, highlighting that they’ve long contributed and released open-weight AI models via the Gemma platform from Google DeepMind and Demis Hassabis. #11 in Peter Yang previews how OpenAI DevEx engineer Jason built a Codex-driven workflow—automating a “chief of staff” across Slack and email, converting past sessions into reusable skills and workflows, and spinning up learning sites (e.g., drums).

Related

Claude Codetool

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Anthropiccompany

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OpenAIcompany

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Anthropic’s general-purpose AI assistant, mentioned as part of the tool stack used in the Total Recall memory-layer example. It is also central to multiple newsletter items about safety and modes.

Cursortool

An AI code editor mentioned as one of the tools used alongside Codex, Manos, and Claude in the Total Recall workflow example.

Peter Yangperson

An AI product commentator referenced for identifying major obstacles in building strong AI agents. He also appears tied to an upcoming interview about a production-agent project.

Simon Willisonperson

A prominent AI blogger and commentator referenced in connection with an article on token reselling and fraud. He is cited as the source of the newsletter item discussing the marketplace and API-key abuse.

Hugging Facecompany

A platform and community company for machine learning models and demos, mentioned here for sharing a broadcast about AI agents reproducing ICML 2026 papers.

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NVIDIA AIcompany

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OpenClawtool

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ChatGPTtool

OpenAI's conversational AI product, here used for a personalized family-content automation use case. The newsletter presents it as generating a morning school-drive podcast from calendar and interests data.

Sebastian Raschkaperson

An AI researcher and educator mentioned for sharing his LLMs-from-scratch repository. He is notable here as the author of a practical open-source learning resource.

Claire Voperson

A product/tech leader who demonstrated using Codex to turn a task into an always-on toolbar app for controlling a smart lightbulb from a Mac. The example highlights fast personal app creation with AI tools.

Sam Altmanperson

OpenAI’s CEO, mentioned as a related account in the context of OpenAI’s cyber capability response post.

Andrej Karpathyperson

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NVIDIAcompany

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Jason Zhouperson

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Devintool

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HubSpotcompany

Customer platform company that launched Agent Hub and Agent Builder in public beta. The launch is framed around building custom chat-style agents and workflows.

There's An AI For Thatcompany

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Rohan Varmaperson

An OpenAI product leader mentioned as the user of Codex for product work. He is described as using AI to synthesize feedback, prototype interfaces, and automate operational workflows.

Henry Shiperson

Henry Shi is a technical staff member at Anthropic Labs and co-runner of the AI Product Management Certification. He is described as a former co-founder of Super.com.

GPT-5.5tool

A model used as an automated judge in Claire Vo’s benchmark. It contributes 30% of the scoring alongside her manual evaluation.

Slacktool

A workplace messaging tool used for alerts and human-in-the-loop actions in AI workflows. Here it receives notifications from the PR-review agent.

Figmacompany

A collaborative design platform referenced as an example of broad enterprise SaaS that may remain resilient in the AI era. It is contrasted with niche single-purpose products.

Linearcompany

A product/task management tool used in the newsletter as part of an AI triage workflow. It is one of the systems Codex checks and integrates with to prioritize work.

OpenAI Codextool

OpenAI’s coding agent used for autonomous implementation, browser scraping, and prototype generation in this newsletter. It is relevant for agentic coding workflows and PM-led prototyping.

Hermestool

A personal-agent oriented model or system discussed as customizable through memory, skills, and style switching. It is presented as useful for both productive work and creative projects.

Cloud Codetool

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GPT-5.6tool

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GitHubcompany

A software collaboration platform central to code review, PRs, and developer automation. It’s the event source and review surface for the Merge Mommy agent.

Kevin Weilperson

OpenAI product leader/executive who publicly praised GPT-5.2 in the newsletter. Useful context for AI PMs tracking product and model reception.

GPT 5.4tool

A GPT model variant used here for scientific reasoning and agentic chemistry experimentation. The newsletter frames it as a model capable of proposing experimental improvements and driving benchmarked workflows.

Groktool

xAI’s AI assistant/model family, mentioned here as part of a set of subagents coordinated through tmux. It is relevant to PMs tracking competing agent products and workflows.

OpenCodetool

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ChatGPT Worktool

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Dan Shipperperson

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Codeextool

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HumanLayercompany

An AI coding IDE and collaboration platform focused on tasks, agent sessions, artifacts, and workflows from questions through implementation. It is positioned as a productivity platform for engineers using AI APIs and agents.

Snowflakecompany

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SynthIDtool

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GPT-5.3-Codextool

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GPT-5.5 Instanttool

OpenAI's chat model optimized for more engaging conversation, better intent understanding, and improved handling of complex constraints. It is described as rolling out to paid users first and then free users.

HyperFramescompany

A production tool used with Adobe Premiere in an AI-assisted ad creative workflow. It helps automate or accelerate post-production for marketing content.

Gmailtool

Google’s email product, referenced as a connector in Google AI Studio.

ChatGPT Protool

A paid ChatGPT subscription tier with expanded model access and higher usage limits. For AI PMs, this is a packaging and monetization lever that affects power users and workflow depth.

Gemini CLItool

Google’s command-line interface for working with Gemini in developer workflows. It is mentioned as a compatible tool alongside agent skills in antigravity.

Salesforcecompany

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Amazon Bedrockcompany

AWS’s managed model hosting and inference platform. In this newsletter it hosts Grok 4.3 and Claude deployments for enterprise use.

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OpenAI leader and product/engineering voice associated here with confirming Codex’s unification with the main model. The newsletter cites him via Simon Willison’s note.

OpenTelemetryconcept

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Claw Codetool

A Python-derived clone created from leaked Claude Code TypeScript. It is described as a fast-growing GitHub repo.

Claude Opustool

Anthropic’s Claude model used locally in Paperclip’s agent orchestration demo. It is used for task execution, company simulation, and coding workflows.

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