# Microgram: loop-cascade

`station__algovigilance__microgram-loop-cascade` · native (always callable) · domain `algovigilance` · pv-relevance `pv-core`

Flywheel loop interaction hierarchy (Spec Section 4). Cascade: 5→1→2→4, with 3→2. Takes all 5 loop outputs and applies dependency rules to produce system-level verdict. NOMINAL (all healthy), DEGRADED (warnings present), CASCADING (failure propagating through dependency chain), COLLAPSED (2+ loops failed).

## Agent metadata

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

## Input schema

- `l1_state` *string* (required) — Input variable l1_state
- `l5_state` *string* (required) — Input variable l5_state
- `l2_above_critical` *number* (required) — Input variable l2_above_critical
- `l4_state` *string* (required) — Input variable l4_state
- `l3_class` *string* (required) — Input variable l3_class

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__algovigilance__microgram-loop-cascade",
    "arguments": {
      "l1_state": "",
      "l5_state": "",
      "l2_above_critical": 0,
      "l4_state": "",
      "l3_class": ""
    }
  }
}
```

## Related

- [/tools](/tools) — all 7718 tools
- [/tools/algovigilance__microgram-loop-cascade](/tools/algovigilance__microgram-loop-cascade) — HTML page
- [/tools/algovigilance__microgram-loop-cascade/json](/tools/algovigilance__microgram-loop-cascade/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide