Working Notes on Agent Systems/Brad Zhang

@teach_fireworks / X longform

I would like to add a point that I think is very important: In Long-Horizon agent or task, Verifier >

I would like to add a point that I think is very important: In Long-Horizon agent or task, Verifier > Planner, because long tasks continue to accumulate and summarize context...

May 25, 2026 路 1 min read

I would like to add a point that I think is very important: In Long-Horizon agent or task, Verifier >
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I would like to add a point that I think is very important: In Long-Horizon agent or task, Verifier > Planner, because long tasks continue to accumulate and summarize context, it will make related work very challenging.

Some iron laws of a certain stage may be lost in subsequent stages and no longer valid.

We all know the butterfly effect.

There will be many butterfly effects in long tasks.

An inadvertent and inaccurate decision in the early stage will produce a lot of debris and friction in the task execution process after a few hours without intervention.

I attached great importance to the capabilities of the planner during the architecture design phase and spent a lot of energy on carving.

However, after the project was actually run, I found that the verifier has assumed a more core function.

It is an important means to prevent the butterfly effect and similar problems.

Its role is actually greater than that of the planner.

It has to integrate a lot of states, target tracking, current effect comparison, correction strategies and other very important functions.

It is strongly recommended to spend the same or more energy on the verifier during the design phase.

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FORMATTOPICCAPABILITYMARKETcoverscoverssignalsFORMATlongform noteTOPICagentsTOPICmemoryCAPABILITYagent workflow
Mermaid outline
flowchart LR
  format-long_post["longform note"]
  topic-agents["agents"]
  topic-memory["memory"]
  capability-agent-workflow["agent workflow"]
  format-long_post -->|covers| topic-agents
  format-long_post -->|covers| topic-memory
  format-long_post -->|signals| capability-agent-workflow

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Built from summary and key paragraph positions

I would like to add a point that I think is very important: In Long-Horizon agent or...THESISI would like to add apoint that I think isvery important: InLong-Horizon agent orSIGNALI would like to add apoint that I think isvery important: InLong-Horizon agent orOPERATORI attached greatimportance to thecapabilities of theplanner during theIMPLICATIONIt is stronglyrecommended to spendthe same or moreenergy on the verifier
Mermaid outline
flowchart LR
  thesis["I would like to add a point that I think is very important: In Long-Horizon agent or task, Verifier > Plann..."]
  signal["I would like to add a point that I think is very important: In Long-Horizon agent or task, Verifier > Plann..."]
  operator["I attached great importance to the capabilities of the planner during the architecture design phase and spe..."]
  implication["It is strongly recommended to spend the same or more energy on the verifier during the design phase."]
  thesis -->|frames| signal
  signal -->|develops| operator
  operator -->|lands in| implication

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