When all 3 LLM attempts are rejected (dedup, blocklist, etc.),
name_feature now returns None instead of a deterministic palette
fallback. process_body leaves the name as null in markers.json.
The preserved path (_is_blank) treats null as unnamed, so a fill
round (re-running the script) picks up only the skipped features
with a fresh corpus — zero dedup pressure from the first pass. The
fill round can use a different seed, slower prompt, or a different
backend entirely (e.g. Haiku).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.6
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