> For a complete page index of the Captain API documentation, fetch https://docs.captain.dev/llms.txt?excludeSpec=true

# Collection Copies Keep the Graph

* **Collection copies now include chunk relations and chunk metadata**: fixed a bug where `POST /v2/collections/{name}/copy` cloned documents and vectors but left the graph behind. A copied collection had no relations, and its chunk metadata matched search filters but never appeared on the metadata read endpoint. Copies now carry both. Captain rewrites each relation's document pointer to the new collection's own document ids, so a copy keeps resolving after you delete the source. The response reports `relations_copied`, `chunk_metadata_copied`, and `relations_unresolved`, and `include_graph: false` skips the graph if you only want documents and vectors.