pattern_tick_overflow

A fast / slow combinator expanded the query window past the 2^53 tick ceiling.

Pattern time is integer ticks on a fixed grid (PPC per cycle). fast n queries its child over a window scaled up by n; chain enough of them (e.g. (fast 1000000000 (fast 1000000000 bd))) and the scaled window magnitude exceeds 2^53, the largest integer a TypeScript number represents exactly. Rather than drift or overflow, the engine refuses: the offending combinator contributes no haps and emits this code, while the rest of the pattern is queried normally (collection over abort). The same trip fires bit-identically in every host.

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Run sjon explain pattern_tick_overflow to read this at a terminal, browse every code, or work through diagnostics-driven repair if you want the habit rather than the answer.