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Claude
54d3bfc84a
The two-pass ban-aware fold doubles resolve(), which runs once per held epoch in controlFloorsLocked plus once in fold, on a client that re-folds the whole buffer from scratch on every Control Plane change. So the second pass is now skipped unless a banned member actually authored a Control edition — not merely when the banlist is empty. Bans overwhelmingly land on plain members who hold no role and write nothing, and for those pass B is provably identical to pass A. Armada's fold checks the same condition. Measured over ConcordCommunityState.fold (throwaway benchmark, not committed; 226 and 2059 editions, 200 reps after warmup). Pass A is byte-for-byte the old algorithm, so the single-pass rows are the before-numbers: 226 eds, no bans 1457 us 226 eds, 20 bans, none authored 994 us 226 eds, 20 bans, one authored -> pass B 1881 us 2059 eds, no bans 2194 us 2059 eds, 50 bans, none authored 2001 us 2059 eds, 50 bans, one authored -> pass B 5697 us 2059 eds, with floors (B1's arm) 2015 us So the common case is free, and B1's chain-first compaction arm is not measurable — the floored fold matches the unfloored one. A banned staffer costs ~2-3x, which is the price of the fix and is paid only under the attack. The audit records this, plus the standing opportunity it surfaced: we have no fold memoization where Armada does, which predates this work and would absorb the pass-B cost too. Not done here — that is a change to make on its own merits. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DrJhpFhhLjuDJQNkGvYMGj