# VALUES_OUTSIDE_RANGE

> VALUES_OUTSIDE_RANGE is a lint warning: an XY chart has values outside its authored y-axis range, so the chart misstates them: a bar stops at the edge of the range and a line point is drawn past the plot.

- **Tier:** lint
- **Severity:** warning
- **Origins:** source

## What triggers it

A `y-axis min --> max` range that does not reach every value of a series. The warning names the `series`, the `values` outside the range, and the `range` itself; a bar chart drawn with `bar [5, 20]` on `0 --> 10` shows the two bars at a 1:2 length ratio instead of 1:4.

## How to fix it

Widen the range with `set_y_axis` so it reaches every value, or remove the range so the axis fits the data.

## Example

```mermaid
xychart-beta
  x-axis [a, b]
  y-axis 0 --> 10
  bar [5, 20]
```

Run `am verify diagram.mmd --json`, inspect this code, and apply the smallest source or typed mutation that clears it. If it persists after two mechanical attempts, return the warning and ask for human review.

Full page: https://agentic-mermaid.dev/warnings/VALUES_OUTSIDE_RANGE/