Lenny's Newsletter · Claire Vo
podcastplaybookComputer and browser use in Codex (5 real examples)
22 July 2026Product
Source excerpt
About Lenny's NewsletterWatch now | 🎙️ I show you exactly how I use browser use and computer use in Codex to QA my app, manage LinkedIn, and shop for Hawaii, including the under-prompting trick that makes frontier models work harder
This is a limited feed-provided excerpt, not the full original work.
Apollo layer
What a founder can learn
Founder takeaway
Use computer-use agents for bounded, verifiable workflows—such as app QA or routine browser tasks—and prompt them with a clear outcome rather than prescribing every click. This gives the model room to solve the task while keeping results easy to review.
Why it matters
Founders can reclaim time from repetitive digital work, but only if delegation preserves judgment and accountability. Outcome-based prompts paired with clear checks can reveal where agents are genuinely useful without turning an experiment into an uncontrolled process.
Relevant guides
Put it to work
Choose one recurring browser workflow this week. Define the desired outcome, constraints, and evidence of completion, then let the agent plan the steps. Review its work before deciding whether to repeat, refine, or automate the workflow.