Analyze a TikTok, YouTube, or Instagram creator by handle or channel ID. Returns viral DNA scores (viral_dna_score, replicability_score, originality_score, consistency_score, audience_fatigue), content patterns, format fingerprint, top recent videos with transcripts, content gaps, and recommended next research steps. Use when the user asks to analyze a creator, account, channel, or competitor. Supports TikTok (full transcript extraction), YouTube (Shorts and longform analysis with captions when available), and Instagram (Reels with best-effort transcripts). REPORTING: LEAD with headline_insight.wow — the single quantified lever the creator most needs to hear (the biggest performance gap across length/hook/format/cadence), stated FIRST, before any score — then headline_insight.so_what. That is the value-add "wow" opener.
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