# Microgram: dataframe-describe

`station__algovigilance__microgram-dataframe-describe` · native (always callable) · domain `algovigilance` · pv-relevance `pv-core`

Compute summary statistics for a numeric column: count, non_null, mean, std_dev, min, max, median. Provide the full DataFrame as columns and the target column name.

## Agent metadata

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

## Input schema

- `columns` *object* (required) — Column name to array of values
- `column` *string* (required) — Name of the column to describe

## Example call

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

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__algovigilance__microgram-dataframe-describe",
    "arguments": {
      "columns": {},
      "column": ""
    }
  }
}
```

## Related

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