Timeline Assembly

Workflow

1. Read ../../references/EXECUTABLE_TIMELINE.md, edit plan, editorial manifest, media approvals, finished picture, and audio-master path.
2. Write 05_post/timeline.json for the main film or the equivalent timeline under a trailer/social deliverable directory.
3. Use event order as playback order.
4. Give every event an EVT-### ID, positive duration, source identity, and project-relative source path when required.
5. Resolve all placeholders and missing required media before final rendering.
6. Validate with scripts/render_timeline.py PROJECT --timeline PATH --validate-only.
7. Render only when the user requested actual output or the owning playbook requires a finished master.

Weak-model rule

Do not invent transitions or timing to hide missing media. Hard cuts are the safe portable default.

Done

The timeline can be reconstructed without chat history and contains no unresolved required picture event.