# classify-seriousness

`station__pv-engine__classify-seriousness` · external (needs EXECUTION_BACKEND_URL configured) · domain `pv-engine` · pv-relevance `pv-core`

Classify adverse event seriousness using ICH E2A criteria. Checks 7 regulatory criteria: death, life-threatening, hospitalization/prolonged, disability/incapacity, congenital anomaly/birth defect, medically significant, requires intervention. CRITICAL: serious != severe. A severe headache is NOT serious. A mild heart attack IS serious (hospitalization). Reference: ICH E2A (1994), CIOMS IV (1998).

> **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

- `event_description` *string* (required) — Description of the adverse event
- `resulted_in_death` *boolean* — Event resulted in death?
- `life_threatening` *boolean* — Life-threatening at time of event?
- `hospitalization` *boolean* — Required inpatient hospitalization or prolonged existing?
- `disability` *boolean* — Resulted in persistent or significant disability/incapacity?
- `congenital_anomaly` *boolean* — Congenital anomaly/birth defect?
- `medically_significant` *boolean* — Other medically important condition?

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__pv-engine__classify-seriousness",
    "arguments": {
      "event_description": ""
    }
  }
}
```

## Related

- [/tools](/tools) — all 3062 tools
- [/tools/pv-engine__classify-seriousness](/tools/pv-engine__classify-seriousness) — HTML page
- [/tools/pv-engine__classify-seriousness/json](/tools/pv-engine__classify-seriousness/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide