# run-multi-signal-ranker

`station__microgram__run-multi-signal-ranker` · external (needs EXECUTION_BACKEND_URL configured) · domain `microgram` · pv-relevance `pv-core`

Rank 4 PV signal measures (PRR, ROR, IC, EBGM) against each other using cross-variable comparison. Determines which method gives strongest evidence, how many agree on signal detection, and overall concordance. Uses threshold: PRR>=2, ROR>=2, IC>=0.5, EBGM>=2.

> **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

- `prr` *number* (required) — Input parameter: prr
- `ebgm` *number* (required) — Input parameter: ebgm
- `ror` *number* (required) — Input parameter: ror
- `ic` *number* (required) — Input parameter: ic

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__microgram__run-multi-signal-ranker",
    "arguments": {
      "prr": 0,
      "ebgm": 0,
      "ror": 0,
      "ic": 0
    }
  }
}
```

## Related

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