# run-community-vitals

`station__microgram__run-community-vitals` · external (needs EXECUTION_BACKEND_URL configured) · domain `microgram` · pv-relevance `pv-core`

Loop 1 FlywheelVitals: Community value network health. Produces the force_ratio input for rim-integrity. tensile_strength = switching_cost + identity_score + value_density. centrifugal_force = churn_rate * alternatives_count. force_ratio = tensile/centrifugal. Spec §3.1: binary failure mode — holds perfectly until it does not.

> **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

- `identity_score` *number* (required) — Input parameter: identity_score
- `force_ratio` *number* (required) — Input parameter: force_ratio
- `value_density` *number* (required) — Input parameter: value_density
- `churn_rate` *number* (required) — Input parameter: churn_rate
- `alternatives_count` *integer* (required) — Input parameter: alternatives_count
- `switching_cost` *number* (required) — Input parameter: switching_cost

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__microgram__run-community-vitals",
    "arguments": {
      "identity_score": 0,
      "force_ratio": 0,
      "value_density": 0,
      "churn_rate": 0,
      "alternatives_count": 0,
      "switching_cost": 0
    }
  }
}
```

## Related

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