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Takes one case, such as \"550 U.S. 544\". A pending, provisional, preliminary, or stale result is not a clearance. To see which decisions cited it and how, use get_case_treatments.","annotations":{"title":"Check case validity","readOnlyHint":false,"openWorldHint":false,"idempotentHint":false,"destructiveHint":false},"source":"probe","observed_at":"2026-10-17T23:14:41.604Z"},{"name":"check_quote","title":"Check a quotation","description":"Check whether a quotation appears word for word in the full text of one authority, identified by citation or OpenCase legalContentId. Ellipses and bracketed alterations are honored. 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To check whether citations exist without reading them, use resolve_legal_citations.","annotations":{"title":"Get legal authority","readOnlyHint":false,"openWorldHint":true,"idempotentHint":false,"destructiveHint":false},"source":"probe","observed_at":"2026-10-17T23:14:41.604Z"},{"name":"research_legal_question","title":"Research a legal question","description":"Research a legal question and return a cited answer using public legal sources.","annotations":{"title":"Research a legal question","readOnlyHint":false,"openWorldHint":true,"idempotentHint":false,"destructiveHint":false},"source":"probe","observed_at":"2026-10-17T23:14:41.604Z"},{"name":"resolve_legal_citations","title":"Resolve legal citations","description":"Check a list of separate citation strings, such as [\"410 U.S. 113\", \"42 U.S.C. § 1983\"]. For citations inside prose, use verify_citations_in_text. 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