# health-measure-impact

`station__health__health-measure-impact` · external (needs EXECUTION_BACKEND_URL configured) · domain `health` · pv-relevance `non-pv`

Measure public health impact of signals

> **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

- `total_signals` *integer* (required) — Total signals analyzed
- `valid_signals` *integer* (required) — Number of valid signals

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__health__health-measure-impact",
    "arguments": {
      "total_signals": 0,
      "valid_signals": 0
    }
  }
}
```

## Related

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