Continue a thread in a shared space
Forks the thread into a space so colleagues can join it (P3-D7). A thread never changes container: this starts a NEW thread in the target, seeded with the source thread’s conversation tail (≤4 KiB) and its title, and leaves a one-way pointer on both sides. Files are NEVER carried over — promoting them stays the explicit `keep` / `move_files` path. Body: either `{ spaceId }` for an existing space, or `{ spaceTypeId, title }` to create one (the creator is granted `space-contributor` on it). Authorization: the caller must be able to contribute to the source thread’s container AND to the target — 404 hides either; creating a space requires `spacetype:contribute` on the parent (403). A desk is never a valid target (400 `cannot_target_desk`). Gated by `AGENTS_ENABLED`.
Authentication
AuthorizationBearer
Bearer authentication of the form Bearer <token>, where token is your auth token.
Path parameters
threadId
Request
This endpoint expects an object.
OR
Response
The new thread in the target space.
threadId
runId
steered
status
spaceId
Errors
400
Bad Request Error
403
Forbidden Error
404
Not Found Error