{"mcpName":"station__pv-engine__assess-who-umc","slug":"pv-engine__assess-who-umc","label":"assess-who-umc","description":"Assess causality using the WHO-UMC system. Evaluates temporal relationship, dechallenge/rechallenge, and alternative causes to classify into 6 categories: Certain, Probable/Likely, Possible, Unlikely, Conditional/Unclassified, Unassessable/Unclassifiable. Reference: WHO-UMC Causality Assessment Guidelines.","domainSlug":"pv-engine","pvRelevance":"pv-core","backend":"external","agentMetadata":{"idempotent":null,"read_only":null,"expected_latency_ms":null,"cost_tokens_estimate":null,"pipes_to":null},"inputSchema":{"type":"object","properties":{"drug":{"type":"string","description":"Suspected drug name"},"event":{"type":"string","description":"Adverse event term"},"time_relationship":{"type":"boolean","description":"Reasonable temporal relationship between drug and event?"},"dechallenge":{"type":"boolean","description":"Event improved when drug stopped (positive dechallenge)?"},"rechallenge":{"type":"boolean","description":"Event recurred when drug restarted (positive rechallenge)?"},"alternative_causes":{"type":"boolean","description":"Can alternative causes be ruled out?"},"known_response":{"type":"boolean","description":"Is this a known response pattern for the drug?"}},"required":["time_relationship","dechallenge","rechallenge","alternative_causes"]},"example":null,"taxonomy":{"rank":{"domain":"Substrata","kingdom":"Constructa","phylum":"Configa","class":"station-config","order":"guardian","family":"mcp-tool-config"},"characteristics":{"substrate":"config","domain":"pv","lifecycle":"continuous","stateful":false,"persistence":"none","authority":"read","compounding":"producer","io_input":"agent-request","io_output":"tool-response"}},"_links":{"html":"/tools/pv-engine__assess-who-umc","markdown":"/tools/pv-engine__assess-who-umc/raw.md","invoke":"/api/mcp","catalog":"/api/mcp"}}