Working Notes on Agent Systems/Brad Zhang

@teach_fireworks / X longform

I let the Codex app operate the Lighting room to automate the later stage of nearly 500 photos in source format without any intervention!

I let the Codex app operate the Lighting room to automate the later stage of nearly 500 photos in source format without any intervention! Against the sky, sleeping trough! It wo...

May 5, 2026 · 1 min read

I let the Codex app operate the Lighting room to automate the later stage of nearly 500 photos in source format without any intervention!
Figure 1 / source image

I let the Codex app operate the Lighting room to automate the later stage of nearly 500 photos in source format without any intervention!

Against the sky, sleeping trough!

It would have been at least two weeks of work.

In fact, it is the official built-in Computuer Use of the Codex app plugin store.

There are a lot of plugins in there.

Actually, it's just a Skill.

Thinking about OpenAI's app store a few years ago made the crowd mock.

Until 2026, the model capabilities were greatly improved, coding, reasoning, and long tasks gradually formed a consensus for the best practices of the Agent.

The Codex app is now so commercially valuable that it actually solves difficult problems.

Best of all, Agent Skills is open source!

The combination of good model + good end-side Agent App + open source Skills ecology is too powerful.

Figure 2 / source image

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I let the Codex app operate the Lighting room to automate the later stage of nearly 5...THESISI let the Codex appoperate the Lightingroom to automate thelater stage of nearlySIGNALI let the Codex appoperate the Lightingroom to automate thelater stage of nearlyOPERATORActually, it's just aSkill.IMPLICATIONThe combination ofgood model + goodend-side Agent App +open source Skills
Mermaid outline
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  signal["I let the Codex app operate the Lighting room to automate the later stage of nearly 500 photos in source fo..."]
  operator["Actually, it's just a Skill."]
  implication["The combination of good model + good end-side Agent App + open source Skills ecology is too powerful."]
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