Working Notes on Agent Systems/Brad Zhang

@teach_fireworks / X longform

Visualize that with the rapid development of agent cli and harness, the interaction and logic core will soon

Visualize that with the rapid development of agent cli and harness, the interaction and logic core will soon be reconstructed by Golang, which is very suitable for...

May 19, 2026 · 1 min read

Visualize that with the rapid development of agent cli and harness, the interaction and logic core will soon be reconstructed by Golang, which is very suitable for writing high-performance core logic:

  • High concurrency tools call the Agent frequently to call search, API, database, vector library, goroutine batch parallel scheduling, throughput crushing Python.
  • Streaming inference friendly native support long connection, SSE/websocket, docking LLM streaming output, low latency, stable without packet loss.
  • Context Context Native Design Agent Multiple rounds of dialog, timeout, cancellation, permissions, and trace links directly use context.Context to clarify specifications and avoid memory leaks.
  • Lightweight service-oriented single-file compilation binary, no dependencies, minimal deployment of Agent microservices, Agent cluster, Sidecar, and minimal container image.
  • High network performance (net/http high performance) High throughput HTTP/GRPC, docking OpenAI/Meaning/Wenxin model gateway, vector database (Milvus/Pinecone) performance is full.
  • Suitable for resident agent service memory stability, no memory leakage like Python running for a long time, suitable for 7 × 24 online agents. Some of the best paradigms in different fields are repeatedly proven and validated. If your agent pure logic and harness processing want to become high concurrency high-performance, easy to maintain, Golang is not a choice, the rest can be played arbitrarily.

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FORMATTOPICCAPABILITYMARKETcoverscoverscoverscoverscoverssignalssignalssignalsFORMATlongform noteTOPICagentsTOPICharness engineeringTOPICtechnical distributionTOPICmemoryTOPICinferenceCAPABILITYagent workflowCAPABILITYharness engineeringCAPABILITYdeveloper toolingMARKETopen-source builders
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  capability-harness-engineering["harness engineering"]
  capability-developer-tooling["developer tooling"]
  market-open-source-builders["open-source builders"]
  format-long_post -->|covers| topic-agents
  format-long_post -->|covers| topic-harness-engineering
  format-long_post -->|covers| topic-technical-distribution
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  format-long_post -->|signals| capability-harness-engineering
  format-long_post -->|signals| capability-developer-tooling

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Visualize that with the rapid development of agent cli and harness, the interaction a...THESISVisualize that withthe rapid developmentof agent cli andharness, theSIGNALVisualize that withthe rapid developmentof agent cli andharness, theOPERATOR3. Context ContextNative Design AgentMultiple rounds ofdialog, timeout,IMPLICATION6. Suitable forresident agent servicememory stability, nomemory leakage like
Mermaid outline
flowchart LR
  thesis["Visualize that with the rapid development of agent cli and harness, the interaction and logic core will soo..."]
  signal["Visualize that with the rapid development of agent cli and harness, the interaction and logic core will soo..."]
  operator["3. Context Context Native Design Agent Multiple rounds of dialog, timeout, cancellation, permissions, and t..."]
  implication["6. Suitable for resident agent service memory stability, no memory leakage like Python running for a long t..."]
  thesis -->|frames| signal
  signal -->|develops| operator
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