Working Notes on Agent Systems/Brad Zhang

@teach_fireworks / X longform

Pass data between agents over a shared medium rather than through ephemeral and difficult-to-maintain context windows.

Pass data between agents over a shared medium rather than through ephemeral and difficult-to-maintain context windows. In this case, the simplest and most effective harness mech...

June 8, 2026 · 1 min read

Pass data between agents over a shared medium rather than through ephemeral and difficult-to-maintain context windows.
Figure 1 / source image

Pass data between agents over a shared medium rather than through ephemeral and difficult-to-maintain context windows.

In this case, the simplest and most effective harness mechanism can form a closed loop through Planner, Generator, and Evaluator, and their previous data can be realized through a common file system.

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FORMATTOPICCAPABILITYMARKETcoverscoverscoverscoverssignalssignalssignalsFORMATmedia dispatchTOPICagentsTOPICharness engineeringTOPICmemoryTOPICevaluationCAPABILITYagent workflowCAPABILITYharness engineeringCAPABILITYevaluation
Mermaid outline
flowchart LR
  format-image_post["media dispatch"]
  topic-agents["agents"]
  topic-harness-engineering["harness engineering"]
  topic-memory["memory"]
  topic-evaluation["evaluation"]
  capability-agent-workflow["agent workflow"]
  capability-harness-engineering["harness engineering"]
  capability-evaluation["evaluation"]
  format-image_post -->|covers| topic-agents
  format-image_post -->|covers| topic-harness-engineering
  format-image_post -->|covers| topic-memory
  format-image_post -->|covers| topic-evaluation
  format-image_post -->|signals| capability-agent-workflow
  format-image_post -->|signals| capability-harness-engineering
  format-image_post -->|signals| capability-evaluation

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Pass data between agents over a shared medium rather than through ephemeral and diffi...THESISPass data betweenagents over a sharedmedium rather thanthrough ephemeral andSIGNALPass data betweenagents over a sharedmedium rather thanthrough ephemeral andOPERATORIn this case, thesimplest and mosteffective harnessmechanism can form aIMPLICATIONIn this case, thesimplest and mosteffective harnessmechanism can form a
Mermaid outline
flowchart LR
  thesis["Pass data between agents over a shared medium rather than through ephemeral and difficult-to-maintain conte..."]
  signal["Pass data between agents over a shared medium rather than through ephemeral and difficult-to-maintain conte..."]
  operator["In this case, the simplest and most effective harness mechanism can form a closed loop through Planner, Gen..."]
  implication["In this case, the simplest and most effective harness mechanism can form a closed loop through Planner, Gen..."]
  thesis -->|frames| signal
  signal -->|develops| operator
  operator -->|lands in| implication

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