# run-who-umc-quick

`station__microgram__run-who-umc-quick` · external (needs EXECUTION_BACKEND_URL configured) · domain `microgram` · pv-relevance `pv-core`

WHO-UMC causality assessment scale: international standard alternative to Naranjo, used in VigiBase/VigiAccess reporting

> **Note:** This tool routes through an external execution backend. If `EXECUTION_BACKEND_URL` is unset on the server, calls return JSON-RPC error `-32603 "Tool execution backend not configured"`. Tools with `backend: native` execute in-process and are always callable.

## Agent metadata

- `idempotent`: unknown
- `read_only`: unknown
- `expected_latency_ms`: unknown (not yet contract-tested)
- `cost_tokens_estimate`: unknown

## Input schema

- `dechallenge_positive` *boolean* (required) — Input parameter: dechallenge_positive
- `no_alternative_explanation` *boolean* (required) — Input parameter: no_alternative_explanation
- `time_plausible` *boolean* (required) — Input parameter: time_plausible
- `known_reaction` *boolean* (required) — Input parameter: known_reaction
- `rechallenge_positive` *boolean* (required) — Input parameter: rechallenge_positive

## Example call

```json
POST /api/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__microgram__run-who-umc-quick",
    "arguments": {
      "dechallenge_positive": false,
      "no_alternative_explanation": false,
      "time_plausible": false,
      "known_reaction": false,
      "rechallenge_positive": false
    }
  }
}
```

## Related

- [/tools](/tools) — all 3062 tools
- [/tools/microgram__run-who-umc-quick](/tools/microgram__run-who-umc-quick) — HTML page
- [/tools/microgram__run-who-umc-quick/json](/tools/microgram__run-who-umc-quick/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide