photoshop_select_subject

Run Select Subject on the active layer (creates a pixel selection only, no mask). Users often say: cut out, isolate subject, select person, select object. Use when: you need a subject selection for masking, fill, or further edits. Do NOT use when: full background removal with mask — use photoshop_recipe_remove_background. Returns: JSON { ok, summary, details: { selected, method } }. Preconditions: PS ≥ 23, active document, non-Background active layer with a recognizable subject. Side effects: replaces current selection.