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Addy Osmani

Engineer working on Claude Code at Anthropic

Practical ways to plan, inspect and test software made with coding agents, from a small change to a team's development process.

@addyosmani on X

Community rating

80

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Why read Addy Osmani?

Addy is useful when an agent can generate code but you still need a dependable way to finish the job. His workflow starts with a written specification, breaks changes into small tasks and uses tests, browser checks and frequent commits to keep progress inspectable.

His later lifecycle article explains the surrounding machinery: instructions, tools, context and evaluations all affect an agent's result. Read the workflow for changes you can make today, then the lifecycle piece to understand what a team needs around the model. His current work at Anthropic is on Claude Code.

Selected work

  1. Workflow,

    How do you keep an AI coding session moving toward a checked result? Follow his sequence of specifications, small changes, relevant context, tests and commits.

    Cite this selection

    XFollowList, “My LLM coding workflow going into 2026” reading notes in the Addy Osmani profile. https://xfollowlist.com/people/addy-osmani#work-ad55285042ae

    The linked work is the original source; this permalink identifies XFollowList’s reason to read it. Original work published .

    Profile-source checking date and references · Dated reading map

  2. Engineering essay,

    What changes when agents work across the development process? His discussion of the agent's tools, context and evaluations helps explain why choosing a model is only one part of the job.

    Cite this selection

    XFollowList, “The New Software Lifecycle” reading notes in the Addy Osmani profile. https://xfollowlist.com/people/addy-osmani#work-6db52aeb5bef

    The linked work is the original source; this permalink identifies XFollowList’s reason to read it. Original work published .

    Profile-source checking date and references · Dated reading map

Projects & roles

  • agent-skills

    His collection of engineering instructions for AI coding agents, linked from his author site.

  • Beyond Vibe Coding

    His book and companion material on AI-assisted development.

Sources & further reading

Profile sources checked . This describes checking these references, separately from the publication dates of selected works.

Cite this profile’s source check

XFollowList, Addy Osmani profile sources. Sources checked 2026-10-09. https://xfollowlist.com/people/addy-osmani#sources-checked