Analyse a TikTok, Instagram Reel, or YouTube Shorts video. Omit format for full VideoAnalysis (transcript, scenes, visual summary). Optional format selects a workflow template (24 formats: brand safety, creator brief, recipe, tutorials, e-commerce, health, education, news, music, sports, travel — see entit.ai/docs/api#workflow-formats). Caches are per format — switching format requires a new paid job. POST a video URL; poll the returned URL (free) until ready.