A rendering asked to change only its words also changes its facts and its vantage. The scenes section was built on the opposite promise: each scene takes its physical givens from the wiki “so that voice decisions don’t drift into fact decisions. A voice should be judged on how it handles the world, not on what world it invents.” An audit of Dawn at Scimitar Falls (2026-09-30) found the drift in every one of the six renderings, and found it running in more than one direction: the voices minted world-facts, they varied the narrative stance the constraints never mentioned, and in several cases they inherited inventions from each other rather than from the scene.

This is not a carelessness problem. The analysis page argues the leakage is structural — a voice cannot be rendered without asserting things — which changes what a fix looks like. The bundle’s technique, the layer sweep, accordingly aims at catching and triaging leaks rather than at preventing them.

Observed instances#

All from the Dawn at Scimitar Falls audit, checked against the wiki, canon memory, and the unreconciled notes:

• Minted species. Herbert invents “ring-doves” with a malformed binomial (Pteroclidae coriopolitana — a family name used as a genus); Martine reuses them. Absent from the species catalog and unlogged in canon.
• Minted institution. Herbert’s “ranger-hydrologist” and Martine’s ranger corps — rosters, logs, patches, internal documents. Canon’s administration is a game warden’s office.
• Minted quantities and schedules. KSR gives the falls a discharge (3 m³/s, nowhere in data/world.yaml, and probably too thin for the canon 100 m basin sheet), a time standard (“Coriopolis-standard”), and an emitter schedule (first light 05:07); Herbert’s epigraph gives “ca. 0500 local”.
• Minted population. Le Guin’s preserve-dwellers with a pre-dawn walking practice and Wolfe’s inhabitants with their own calendar, against Southern Park’s “no permanent resident population of consequence.”
• Minted flora, landmark, and custom. Alder and birch (Le Guin, Tolkien); the flat stone above the basin (Le Guin, Tolkien, Wolfe — three renderings seat the figure there when the prompt stands her at the overlook); the custom of letting the light come rather than watching for it (Tolkien).
• A reassigned number. Five of six renderings describe “eighty kilometers” of sky or overhead. The scene gives 80 km only as the axial distance to the north-end cityscape.
• A second character. Wolfe’s narrator is present in a scene specified to contain one figure and no other characters.
• Unpinned stance. The constraints ban flashbacks and cuts, but Herbert wraps the scene in a found-document epigraph, Wolfe narrates retrospectively in first person, Martine narrates in present tense, and KSR and Le Guin import time-depth through iterative narration (“It always did,” “She had been doing this twelve years”). All legal; none comparable.

The contamination corollary#

Several inventions recur across renderings that were supposed to derive independently from the scene: the flat stone (×3), the ring-doves (×2), the resident folkways (×2), the tree list (×2), a monitoring station or hut (×2). Each has one origin. If any is ever read as multiply-attested — several voices agree, so it must be canon — that is false corroboration. Renderings derive from the spec, never from each other.