Case-insensitive substring search over title + description. Min 2 chars; shorter values are ignored.

Exact match on textual short id (e.g. CRK-3563). When supplied, takes precedence over keyword.

Additive include-list (or all): default is metadata-only; add description, customFields, comments, linkedItems, or a custom-field name/id to include it. Unlike the item endpoints this ADDS to the response rather than subsetting it. Unknown tokens are rejected 422.

Comma-separated numeric feedback IDs (e.g. 2305843…,2305843…). Use when you already know which feedback items you need — e.g. the IDs returned by get_item.feedbackLinks — and want their metadata in one shot instead of paginating the portal.