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The whole PR review agent was built in Codex with a single prompt and a few steering turns, and using Chrome browser use let me configure the Slack bot and GitHub app without manually clicking through setup screens.

Claire describes the build process: one Codex prompt plus steering turns generated the full agent, and Chrome browser use handled Slack bot and GitHub app configuration so she never had to click through setup manually. ✦ AI generated

Claire Vo · Lenny's Newsletter · 2026-08-05 · original ↗

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How I used Chrome browser use to handle Slack bot and GitHub app configuration so I never had to click through setup screens manually.

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▦ OpenAI

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In practice · 1

A useful internal agent can be built and deployed in a single Codex session starting from a prompt only a couple of sentences long.Claire · Lenny's Newsletter · conf 60%

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gives example → Codex browser use handles real-world personal tasks autonomously: clearing a LinkedIn inbox, shopping Free People for breastfeeding-friendly Hawaii clothes, and managing a router from out of state.Claire Vo · Lenny's Newsletter explains mechanism → AI writing most of my code created a PR queue I couldn't keep up with, so the answer isn't reviewing every AI-generated PR but routing them through an agent that scores risk, auto-approves the low-risk ones, and escalates the rest.Claire Vo · Lenny's Newsletter provides context → Codex is a fast, agentic coding environment inside ChatGPT, and the new voice interface lets a user run a full session hands-free.Nick Baumann · Lenny's Newsletter