**Warning**: Do not manually construct search JSON!

**Correct Usage**: Use the `cplaceJson` field from cplace_search_pages response

**Workflow**:
1. Call cplace_search_pages with your desired filter
2. Take the cplaceJson field from the response
3. Use that value for this attribute

**Note**: Root node searches often use relative UID filters. When using `relativeReference` filters, provide a real page UID as `embeddingEntityUid` — without it, the relative filter won't be included in the returned cplaceJson.