Commenters debate harness importance and context consumption trade-offs
3 Sep 17 12:56 AM · 9d ago · 1 comment · 1 source · development 3 of 7
Hacker News discussion reveals disagreement over how much the harness matters. One commenter argues harness is critical for context management, noting that different harnesses can consume vastly different amounts of context despite similar model call counts. Another challenges the framing, arguing the analysis conflates harness with agent design and overlooks factors like concurrent execution and subagents.
“The harness is basically the underlying source of truth…the hidden cost is really around context. Two different harnesses can make a similar number of model calls while consuming a very different amount of context.”
Yashjain413matt_d HarnessTax research author/submitterYashjain413 HN commenterSupermancho HN commenternojs HN commenterlukax HN commenter
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What people said 1 voice · verbatim
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I think it’s really important, especially when you look at everything the tool does, from the execution loop and context management to feedback. The harness is basically the underlying source of truth.With coding agents, what I’ve noticed is that a simple task can often be handled with a fairly simple harness. But the hidden cost is really around…
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