> For the complete documentation index, see [llms.txt](https://docs.rootcause.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rootcause.ai/more-details/applications/application-modules/staticaccuracy.md).

# Static Accuracy

> Score a static model on new labeled rows for selected target columns and metrics.

Scores a static twin's predictions against the truth already in the rows.

The static counterpart of ScoreForecast: no time axis and no lead times, so the cuts are by column rather than by horizon. Unconnected, it scores the twin's own holdout rather than rows from the flow.

## At a glance

|                          |                        |
| ------------------------ | ---------------------- |
| Module type              | `StaticAccuracy`       |
| Category                 | Intelligence           |
| Default tier             | `reactive`             |
| Runs on                  | `reactive`, `durable`  |
| Starts a flow            | no                     |
| Holds a body             | no                     |
| Keeps state between runs | no                     |
| Available in             | every application type |

## Parameters

### `digitalTwinId`

`string` · required · defaults to `""`

The static twin to score.

### `digitalTwinName`

`string` · optional

Its name when it was chosen, for the node's label.

### `digitalTwinVersionIds`

`string[]` · required · defaults to `[]`

Pin the scoring to specific twin versions; empty means the latest.

### `targetColumns`

`string[]` · required · defaults to `[]`

The columns whose predictions are scored.

### `metrics`

`string[]` · required · defaults to `[]`

Which accuracy metrics to compute.

### `primaryMetric`

`string` · optional · defaults to `""`

The one a KPI tile reads; must be in `metrics`.

### `primaryTarget`

`string` · optional · defaults to `""`

The target column a KPI tile reads; must be in `targetColumns`.

## Inputs

| Port       | Kind        | Required | Description                                                                                                                           |
| ---------- | ----------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------- |
| `on`       | `event`     | no       | Implicit on every module that does not itself start a flow: wire an event here to make this module the start of what that event runs. |
| `features` | `dataframe` | no       | Rows to score; unconnected, the twin's holdout is used.                                                                               |

## Outputs

| Port         | Kind        | Connects to           | Description                                     |
| ------------ | ----------- | --------------------- | ----------------------------------------------- |
| `comparison` | `dataframe` | `dataframe`, `signal` | One row per case: predicted beside actual.      |
| `byVariable` | `dataframe` | `dataframe`, `signal` | Accuracy per target column.                     |
| `metrics`    | `dataframe` | `dataframe`, `signal` | Every scoring this module has run, newest last. |
| `summary`    | `dataframe` | `dataframe`, `signal` | The latest scoring alone, for a KPI tile.       |

***

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