# Microgram: momentum-tracker

`station__algovigilance__microgram-momentum-tracker` · native (always callable) · domain `algovigilance` · pv-relevance `pv-core`

Detect flywheel momentum from current vs previous velocity (ms). ACCELERATING (current < previous * 0.9), MAINTAINING (within 10%), DECELERATING (current > previous * 1.1). Velocity is inverse: lower ms = faster.

## Agent metadata

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

## Input schema

- `previous_velocity_ms` *number* — Input variable previous_velocity_ms
- `velocity_ratio_pct` *number* — Input variable velocity_ratio_pct

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__algovigilance__microgram-momentum-tracker",
    "arguments": {}
  }
}
```

## Related

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