dubbing

# /dubbing A skill that auto-dubs videos via the Perso AI Dubbing API. ## Core rules (must follow) - **Only the worker sees the raw key.** Never open the key with `Read`, echo it, or pass it as a command-line argument. Workers send it in the `XP-API-KEY` header only. - **One command = the whole job.** `scripts/dubbing.mjs` handles upload · split · translate · merge · save by itself. **Never run `prepare_input.mjs` or `probe_split.mjs` before it** — they are debug tools, and `probe_split.mjs` performs a real upload (the video would upload twice). - **Always run `dubbing.mjs` in the background.** Jobs take minutes to hours; a foreground shell timeout kills the run mid-way. - Languages unspecified → source `auto`, target `en`. - **Multiple languages go in one command** (`--target en,zh,ja`) — upload/split happens once and is reused per language. Never run once per language (re-uploads the source each time). - **Relay progress faithfully.** Surface the worker's stdout `[progress]` lines to chat, verbatim or summarized — and don't announce steps that didn't appear (splitting/merging exist only for over-limit videos). The indented stderr detail logs don't need relaying. - **Keep the user informed while it runs.** Dubbing, lip-sync, and audio separation all print a `[status]` heartbeat (stage + item counts, e.g. `ja 4/6 · en 1/6` or `separating — file 2/5`, with a `next check ~Nm` hint), and each finished item streams as a `[progress]` line. Check the background output ~3 minutes...