Working Notes on Agent Systems/Brad Zhang

@teach_fireworks / X longform

I was a little scared. When I saw Uncle Yu sharing the data he found, the moat and spac...

I was a little scared. When I saw Uncle Yu sharing the data he found, the moat and space of AI products are being compressed visibly to the naked eye. Could it be said that Curs...

July 10, 2026 · 1 min read

I was a little scared.

When I saw Uncle Yu sharing the data he found, the moat and space of AI products are being compressed visibly to the naked eye.

Could it be said that Cursor is the optimal solution for entrepreneurship in application layer AI products?

From a personal experience, I almost only use Codex and CC with various model APIs, especially the plug-in store of Codex is really just one product after another.

In addition, there are X, YouTube, Douyin, Tencent Video, WeChat, Alipay, and movie-watching websites.

There is nothing else.

It’s a bit scary.

Damn it.

Visual summary

Article argument map

Generated from the post's content graph

FORMATTOPICCAPABILITYMARKETcoverssignalsFORMATlongform noteTOPICagentic devtoolsCAPABILITYproduct surface
Mermaid outline
flowchart LR
  format-long_post["longform note"]
  topic-agentic-devtools["agentic devtools"]
  capability-product-surface["product surface"]
  format-long_post -->|covers| topic-agentic-devtools
  format-long_post -->|signals| capability-product-surface

Visual structure

Essay structure map

Built from summary and key paragraph positions

I was a little scared. When I saw Uncle Yu sharing the data he found, the moat and sp...THESISI was a little scared.When I saw Uncle Yusharing the data hefound, the moat andSIGNALI was a little scared.OPERATORIn addition, there areX, YouTube, Douyin,Tencent Video, WeChat,Alipay, andIMPLICATIONDamn it.
Mermaid outline
flowchart LR
  thesis["I was a little scared. When I saw Uncle Yu sharing the data he found, the moat and space of AI products are..."]
  signal["I was a little scared."]
  operator["In addition, there are X, YouTube, Douyin, Tencent Video, WeChat, Alipay, and movie-watching websites."]
  implication["Damn it."]
  thesis -->|frames| signal
  signal -->|develops| operator
  operator -->|lands in| implication

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