Cursor's agent harness keeps removing roles — "you're reinventing Erlang supervision trees"
arthurcolle · x · 2026-09-09
The quoted post describes Cursor's harness for thousands of coding agents going through four designs, each improving by removing a role — planner, then judge, then integrator. What survived: a recursive planner tree, workers that never talk to each other, and one handoff message flowing up.
@raulkv jokes that everyone keeps reinventing Erlang supervision trees — tech from the 1980s.
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