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Both said the refactor was mid-flight and both contradicted the code around them. 1. BuildTunnelNetworkStack: "stage A of three, the twelve detail modifiers and the per-room override are not ported yet, which is why UsesOperatorStackForChunk returns false for TunnelNetwork." All three stages are done, the twelve modifiers are added a dozen lines below the comment, and that function returns true. 2. FIslandBlobSource: "two of the three frame users are not ported yet; revisit when TunnelNetwork brings the second real use." TunnelNetwork is ported, and BuildTunnelNetworkStack already records the verdict: CaveWarp wraps exactly one operator and VerticalScale is a pure scalar function, so ZERO frames out of three candidates. The question was answered; only this comment still asked it, and it would have sent the next reader off to build frame infrastructure that was explicitly decided against. A comment that contradicts the code beneath it is the "read the code, not the comment" trap in reverse. This file already carries the forward version of that lesson, at the cliff modifier whose comment promises a gradient it never samples. Comments only -- no code changed. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>