Production motion

Rules

The direction decides the look: leave fontFamily, caption preset, transition type and palette to it unless the brief names one.
Stills move, not all the same way. Held past about 1.5 s: an eased 3 to 8% push or drift (applyMotionPreset "slow-zoom" or "parallax-drift"), alternating direction, or a scene camera or mask reveal. Faces and products stay in frame.
One move per shot. Never stack zoom, pan and shake on one clip.
Fill the frame. Footage is never scaled below fill unless a border is intended.
Cuts land on beats, action or sentence ends, never mid-word.
The hard cut is the default join. A transition only where it means something (a time jump, a section change, a hit), in the direction's language: leave type out of setTransition; setTransitions needs clipIds or it covers every cut.
Text enters in 0.4 s or less and holds 0.6 s + 0.25 s per word, never under 1 s.
Sound is on by default in a production: a bed (musicBed) and short hits on graphics and major transitions (fetchStockMedia), under the voice (music-bed). The brief's exclusions win; a small change adds none.
Coverage. Fill the full requested duration with picture: no black at the start, no unintended gaps.
Ids. Reusing a clipId replaces that clip.
Moves. Kinetic entrances, speed ramps, mask reveals, J and L cuts, beat sync, scene camera: read references/moves.md for when and how.