Adds a complete CLI harness for Openscreen (https://github.com/siddharthvaddem/openscreen),
an Electron-based screen recording editor. The harness provides agent-native access to
zoom effects, speed ramps, trim, crop, annotations, backgrounds, and polished video exports
via ffmpeg.
- 50 tests (37 unit + 13 E2E) all passing
- Full segment-based rendering pipeline (crop+scale zoom, setpts+atempo speed)
- Session management with 50-level undo/redo
- REPL mode with prompt-toolkit
- JSON and human-readable output modes
- SKILL.md for AI agent discovery
- OPENSCREEN.md SOP document
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
