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presentation_auto_apply_sweep fires banner/editor-screenshot heads at the FLAT presentation threshold (source=presentation_auto). Two guards: (1) hard-skip any image already carrying a human/confirmed content tag — you valued it, so the model can't bury it; (2) if an auto-hide ALSO scores >= presentation_conflict_threshold on a content head, hide it but record a PresentationReview row (conflict tag + score) for the Hidden view. _auto_apply_heads now excludes system tags, so a graduated wip/banner can't fire via the content path (and wip never auto-applies at all). presentation_auto added to _AUTO_SOURCES so auto-hidden chrome never self-trains. Tests: applies, hard-skip valued, conflict-flag, disabled no-op, ignores wip, content-path excludes system. Settings UI + scheduling land next. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CDgx8bQS5YrGRK76v8HUnM