Add captions
Propose burning transcript captions into a project export, optionally in a named look. Deterministic: runs the same composition capability a Sigma turn uses, in review mode, with no model. proposals[] holds zero or one signed proposal in the /v1/sigma/turns shape; send proposals[0].proposal unchanged to POST /v1/sigma/proposals/apply, and its edits[].turnId to POST /v1/sigma/revert. An empty proposals means nothing needed changing and summary says why. Free: nothing runs on an engine or a provider.
Authorizations
A workspace API key.
Body
The project to edit.
1 - 200The composition to edit; omit for the project's current one.
1 - 200The user's words for this edit; shown with the proposal and restored if it is reverted.
2000true burns transcript captions into the export; false leaves them out.
A named caption look.
editorial, clean, bold, active-word, subtle