[umiyosh]

Summary

Videos used few sound effects: the skill asked for 0–2 per scene, which in practice gave about 1.4 per scene (10 in a 57s video). This raises the guideline to about twice that.

Changes (SKILL.md, "効果音")

• Count: 2–4 per scene, 15–20 in a 60s video; 1–2 in the title and closing scenes. Every main motion of a scene gets a sound; of two motions within 0.4s, only the more visible one does
• More events to place sounds on: chips moving, check marks, strikethroughs, rejections
• The prompt table gains four entries (soft paper slide swish, soft tick click, short soft marker strike, soft muted denial thud, short low bump) next to the existing four

No code change: nothing in the scripts limits the number of effects.

Test plan

• Applied to the Workload Identity Federation video: 10 → 19 effects. A still at each new effect's time shows the element that makes the sound appearing at that moment
• Peak level of each effect against the narration and BGM at the same moment: 17 of 19 within 0–3 dB below
• Listen. The check-mark tick (soft tick click) peaks 9 dB below the narration, about 7 dB quieter than the rest: effects are leveled by their average, and this short dense click has a high average for its peak. That is a leveling issue separate from this change