Skill: Roughcut Build

Turns an approved plan into a working roughcut YAML and exported XML. The sub-agent runs async — it commits to a complete cut and returns with notes you can dialogue about.

1. Locate the Plan

A plan path must be passed in as a skill argument (the format produced by cut-planner step 7: libraries/[library-name]/plans/plan_[short-name]_[timestamp].md). If no plan path is passed in, stop immediately and return a message to the parent saying a plan path is required and cut-planner should be run first. Do not search for plans, do not pick one, do not proceed without one.

2. Resolve the Editor (Parent Only)

The sub-agent receives a final editor value:

1. If library.yaml has editor set, use it.
2. Otherwise fall back to libraries/settings.yaml's editor and write the value back to library.yaml.
3. If neither has one, ask the user (Final Cut Pro X / Adobe Premiere Pro / DaVinci Resolve), then save the choice to both library.yaml and libraries/settings.yaml.

3. Launch Build Agent

Agent tool with:
- subagent_type: "general-purpose"
- description: "Build roughcut YAML and XML from approved plan"