# run-rrm-layer-classifier

`station__microgram__run-rrm-layer-classifier` · external (needs EXECUTION_BACKEND_URL configured) · domain `microgram` · pv-relevance `pv-core`

Railway Reference Model (RRM) layer classifier. Given attributes of a system component, classify it into one of 6 RRM layers: Formation (L1), Way (L2), Traction (L3), Signaling (L4), Operations (L5), Enterprise (L6). Based on the principle that safety-critical systems decompose into layers with strict interface contracts, analogous to OSI for networking.

> **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

- `converts_energy_to_motion` *boolean* (required) — Input parameter: converts_energy_to_motion
- `failure_consequence` *string* (required) — Input parameter: failure_consequence
- `has_real_time_requirement` *boolean* (required) — Input parameter: has_real_time_requirement
- `coordinates_multiple_entities` *boolean* (required) — Input parameter: coordinates_multiple_entities
- `sets_strategy_or_policy` *boolean* (required) — Input parameter: sets_strategy_or_policy
- `defines_physical_constraints` *boolean* (required) — Input parameter: defines_physical_constraints
- `is_passive_substrate` *boolean* (required) — Input parameter: is_passive_substrate
- `processes_safety_critical_state` *boolean* (required) — Input parameter: processes_safety_critical_state

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__microgram__run-rrm-layer-classifier",
    "arguments": {
      "converts_energy_to_motion": false,
      "failure_consequence": "",
      "has_real_time_requirement": false,
      "coordinates_multiple_entities": false,
      "sets_strategy_or_policy": false,
      "defines_physical_constraints": false,
      "is_passive_substrate": false,
      "processes_safety_critical_state": false
    }
  }
}
```

## Related

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