Patrick C Toulme(@PatrickToulme):I do not think alot of people appreciate how difficult it is to make a quality harness, specifically an extremely parallel one that can scale out. Making a harness that can run say a lead agent and spawn individual subagents is pretty trivial. A harness that can stablely run nested agents and not crash for days is extremely hard.

Patrick C Toulme

@PatrickToulme

gemini & TPUs @google. Formerly worked on Meta MTIA and AWS Trainium. Opinions are my own. All blogs shared are personal work.

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Patrick C Toulme@PatrickToulme

2026.09.17 19:01

I do not think alot of people appreciate how difficult it is to make a quality harness, specifically an extremely parallel one that can scale out. Making a harness that can run say a lead agent and spawn individual subagents is pretty trivial. A harness that can stablely run nested agents and not crash for days is extremely hard.