Export

Export only when the user asks for a render, download, or final standalone deliverable. A review checkpoint normally stays as an editable ChatCut timeline. To check your own work, use preview_timeline for the picture and a format:"audio" export to hear sound; never make a full-resolution export for a self-check (see verification).

Use submit_export with the current tool schema. Confirm the target timeline, range, resolution, codec, and format from project state and user intent; do not guess a non-active timeline. Give each export a short, distinctive name. Record every returned renderId and expectedFilename.

Video and audio render locally by default: omit renderMode, and the connected ChatCut editor tab renders the timeline on the user's device. Open the project through the browser handoff in the plugin basics skill, activate the requested timeline, and keep that tab open until delivery finishes. If no capable editor is connected, resolve the reported browser or timeline issue and retry locally; there is no automatic cloud retry. Media the editor can already read needs no upload for a local export.

Use track_export for browser and cloud export status; do not use generation/transcription track_progress. Pass the returned renderId, or use the latest-render option for the latest project export. A wait call is a single status read; honor its check-back interval. If submission timed out or its acknowledgement is uncertain, check the latest export before resubmitting so the same export does not start twice.

Delivery

A completed browser export (source:"browser") has no downloadUrl: the rendering tab hands the file to that browser's downloads. Completion does not prove the file was saved, so deliver it only after finding it.