Optuna MCP Server

Official

MIT License

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plot_optimization_history

Visualize optimization history as an image to analyze performance trends. Specify target index for multi-objective tasks or use auto for single-objective. Customize axis labels for clarity.

Instructions

Return the optimization history plot as an image.

    Args:
        target:
            An index to specify the value to display. To plot nth objective value, set this to n.
            Note that this is 0-indexed, i.e., to plot the first objective value, set this to 0.
            For single-objective optimization, None (auto) is recommended.
            For multi-objective optimization, this must be specified.
        target_name:
            Target's name to display on the axis label and the legend.
    

Input Schema

Name	Required	Description	Default
`target`	No
`target_name`	No		Objective Value

Input Schema (JSON Schema)

{
  "properties": {
    "target": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Target"
    },
    "target_name": {
      "default": "Objective Value",
      "title": "Target Name",
      "type": "string"
    }
  },
  "title": "plot_optimization_historyArguments",
  "type": "object"
}

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