Symbiotic Pruning
Idea Lab · Oct 17 2026 · Fleet winner · News proposal

Symbiotic Pruning

Agents check each other's work. An agent that keeps failing peer checks is removed and its work is handed to healthy peers. A quorum rule stops one bad critic from pruning good agents.

How it works

Each round, every agent does a share of tasks. Pairs of agents re-run a sample of each other's tasks against a reference and vote pass or fail. An agent that fails K rounds in a row is pruned and its load is split across the survivors. With the quorum guard on, a failure only counts if at least two thirds of an agent's checkers agree. With it off, any single fail vote counts, so a dishonest critic can knock out good agents one by one.

Example data · simulated swarm
0Round
0Agents alive
0%Output error rate
0%Compute vs start
0Good agents wrongly pruned

Claimed by the proposal, not verified

What to try

What a real build would need

Reference specs to check outputs against, a sampling budget for re-running peers' tasks, signed votes so a critic can't vote twice, and a human sign-off before any agent is removed in a five-agent fleet, where losing one agent is 20% of capacity.

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