Add AI-Powered Contact Filter Generation

You can now turn a plain-English audience description into a ready-to-use contact filter. POST /workspaces/{workspace_id}/contacts/filters takes { "text": "…" } and returns structured filter criteria plus a stable_id token you can pass straight to the contacts index as ?stable_id=…. Add save: true to persist it as a reusable stored filter — fetch it later via GET /contacts/filters/{id} or apply it with ?stored_filter_id=…. Generally available for all workspaces today.

Resources: Contacts::Filter · Contact

Building with an AI agent? The Refine Filters skill covers the underlying filter model.