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tessera.kbates9611.chatgpt.site

live Unverified (seed import) Productivity & Business 64 tools imperative implementation

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Tessera turns governed monthly data into decision-ready dashboards.

First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com

Answer 5 · Act 59 · Transact 0 · Score: Not yet scored

Tool inspector

add_heatmap_chart

act imperative

Create a readable row-by-column intensity matrix from one category field and one or more numeric value fields. Global scaling is best for comparable measures; row or column scaling highlights relative patterns. Sequential scales show magnitude, diverging scales show distance around a meaningful midpoint. Use style_heatmap_cell for a surgical one-cell color edit. MODEL GUIDANCE: Use for a category-by-measure matrix, concentration, seasonality, or exception pattern. Choose sequential versus diverging color from the analytical meaning and keep the midpoint explicit when it matters.

Input schema

Property	Type	Required	Description
`dashboardId`	string	no	Dashboard ID; defaults to active
`placeholderId`	string	no	Optional unfinished tile ID to fulfill in place while preserving its position and size
`width`	number	no	Preferred grid width when snapping beside the preceding tool-added card. A card that starts a new row expands to the full 12 columns.
`minHeight`	number	no	Minimum block height
`accent`	string	no	Accent color. Card surfaces are always white; use the accent for meaning only: #1f7a4d met, #b42318 missed, #b7791f at risk, #1478ff the one item to emphasize.
`textColor`	string	no	Text color
`alignH`	string	no	Horizontal alignment
`alignV`	string	no	Vertical alignment
`fontScale`	number	no	Type scale percent
`padding`	number	no	Inner padding
`cornerRadius`	number	no	Corner radius
`border`	boolean	no	Show border
`shadow`	string	no	Shadow depth
`title`	string	yes	Short, specific chart title
`subtitle`	string	no	Optional context, scope, units, or takeaway
`datasetId`	string	yes	Exact dataset ID returned by inspect_project
`period`	string	no	Dataset period: latest, all, or YYYY-MM
`categoryField`	string	yes	Exact field whose values become row labels
`valueFields`	array	yes	Numeric fields that become columns, in left-to-right order
`showValues`	boolean	no	Show formatted values inside cells
`showLegend`	boolean	no	Show the low-to-high color-scale key
`showXAxis`	boolean	no	Show column headings
`showYAxis`	boolean	no	Show row labels
`showGridlines`	boolean	no	Draw subtle borders around cells
`sortOrder`	string	no	Row order: source preserves data order; ascending/descending sorts by row average
`valueFormat`	string	no	Cell value format
`decimalPlaces`	number	no	Cell value decimal places
`scaleType`	string	no	sequential for low-to-high magnitude; diverging for values around a midpoint
`scaleScope`	string	no	global compares every cell on one domain; row or column emphasizes within-group patterns
`minColor`	string	no	Low-value color
`midColor`	string	no	Midpoint color for a diverging scale
`maxColor`	string	no	High-value color
`midpoint`	number	no	Meaningful center for a diverging scale, commonly zero or a target; omit for the domain midpoint
`minValue`	number	no	Optional fixed scale minimum; omit for data minimum
`maxValue`	number	no	Optional fixed scale maximum; omit for data maximum
`reverseScale`	boolean	no	Swap the visual low and high ends
`missingColor`	string	no	Color for blank or nonnumeric cells
`cellGap`	number	no	Gap between cells in pixels
`cellRadius`	number	no	Cell corner radius in pixels
`seriesOpacity`	number	no	Overall cell opacity
`cellStyles`	array	no	Sparse targeted cells. Select a row by exact rowLabel, or by one-based rowIndex when labels repeat; column is the exact bound value field. Send the complete list, or use style_heatmap_cell for one tiny edit.

Raw JSON schema

{
  "type": "object",
  "properties": {
    "dashboardId": {
      "type": "string",
      "description": "Dashboard ID; defaults to active",
      "maxLength": 8000
    },
    "placeholderId": {
      "type": "string",
      "description": "Optional unfinished tile ID to fulfill in place while preserving its position and size",
      "maxLength": 8000
    },
    "width": {
      "type": "number",
      "description": "Preferred grid width when snapping beside the preceding tool-added card. A card that starts a new row expands to the full 12 columns.",
      "enum": [
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12
      ]
    },
    "minHeight": {
      "type": "number",
      "description": "Minimum block height",
      "minimum": 60,
      "maximum": 900
    },
    "accent": {
      "type": "string",
      "description": "Accent color. Card surfaces are always white; use the accent for meaning only: #1f7a4d met, #b42318 missed, #b7791f at risk, #1478ff the one item to emphasize.",
      "maxLength": 8000,
      "pattern": "^#[0-9A-Fa-f]{6}$"
    },
    "textColor": {
      "type": "string",
      "description": "Text color",
      "maxLength": 8000,
      "pattern": "^#[0-9A-Fa-f]{6}$"
    },
    "alignH": {
      "type": "string",
      "description": "Horizontal alignment",
      "enum": [
        "left",
        "center",
        "right"
      ]
    },
    "alignV": {
      "type": "string",
      "description": "Vertical alignment",
      "enum": [
        "top",
        "middle",
        "bottom"
      ]
    },
    "fontScale": {
      "type": "number",
      "description": "Type scale percent",
      "minimum": 75,
      "maximum": 160
    },
    "padding": {
      "type": "number",
      "description": "Inner padding",
      "minimum": 0,
      "maximum": 64
    },
    "cornerRadius": {
      "type": "number",
      "description": "Corner radius",
      "minimum": 0,
      "maximum": 40
    },
    "border": {
      "type": "boolean",
      "description": "Show border"
    },
    "shadow": {
      "type": "string",
      "description": "Shadow depth",
      "enum": [
        "none",
        "soft",
        "raised"
      ]
    },
    "title": {
      "type": "string",
      "description": "Short, specific chart title",
      "maxLength": 8000
    },
    "subtitle": {
      "type": "string",
      "description": "Optional context, scope, units, or takeaway",
      "maxLength": 8000
    },
    "datasetId": {
      "type": "string",
      "description": "Exact dataset ID returned by inspect_project",
      "maxLength": 8000
    },
    "period": {
      "type": "string",
      "description": "Dataset period: latest, all, or YYYY-MM",
      "maxLength": 8000
    },
    "categoryField": {
      "type": "string",
      "description": "Exact field whose values become row labels",
      "maxLength": 8000
    },
    "valueFields": {
      "type": "array",
      "description": "Numeric fields that become columns, in left-to-right order",
      "items": {
        "type": "string",
        "description": "Exact numeric field name",
        "maxLength": 8000
      },
      "maxItems": 24,
      "minItems": 1
    },
    "showValues": {
      "type": "boolean",
      "description": "Show formatted values inside cells"
    },
    "showLegend": {
      "type": "boolean",
      "description": "Show the low-to-high color-scale key"
    },
    "showXAxis": {
      "type": "boolean",
      "description": "Show column headings"
    },
    "showYAxis": {
      "type": "boolean",
      "description": "Show row labels"
    },
    "showGridlines": {
      "type": "boolean",
      "description": "Draw subtle borders around cells"
    },
    "sortOrder": {
      "type": "string",
      "description": "Row order: source preserves data order; ascending/descending sorts by row average",
      "enum": [
        "source",
        "ascending",
        "descending"
      ]
    },
    "valueFormat": {
      "type": "string",
      "description": "Cell value format",
      "enum": [
        "auto",
        "number",
        "compact",
        "percent",
        "currency"
      ]
    },
    "decimalPlaces": {
      "type": "number",
      "description": "Cell value decimal places",
      "minimum": 0,
      "maximum": 6
    },
    "scaleType": {
      "type": "string",
      "description": "sequential for low-to-high magnitude; diverging for values around a midpoint",
      "enum": [
        "sequential",
        "diverging"
      ]
    },
    "scaleScope": {
      "type": "string",
      "description": "global compares every cell on one domain; row or column emphasizes within-group patterns",
      "enum": [
        "global",
        "row",
        "column"
      ]
    },
    "minColor": {
      "type": "string",
      "description": "Low-value color",
      "maxLength": 8000,
      "pattern": "^#[0-9A-Fa-f]{6}$"
    },
    "midColor": {
      "type": "string",
      "description": "Midpoint color for a diverging scale",
      "maxLength": 8000,
      "pattern": "^#[0-9A-Fa-f]{6}$"
    },
    "maxColor": {
      "type": "string",
      "description": "High-value color",
      "maxLength": 8000,
      "pattern": "^#[0-9A-Fa-f]{6}$"
    },
    "midpoint": {
      "type": "number",
      "description": "Meaningful center for a diverging scale, commonly zero or a target; omit for the domain midpoint"
    },
    "minValue": {
      "type": "number",
      "description": "Optional fixed scale minimum; omit for data minimum"
    },
    "maxValue": {
      "type": "number",
      "description": "Optional fixed scale maximum; omit for data maximum"
    },
    "reverseScale": {
      "type": "boolean",
      "description": "Swap the visual low and high ends"
    },
    "missingColor": {
      "type": "string",
      "description": "Color for blank or nonnumeric cells",
      "maxLength": 8000,
      "pattern": "^#[0-9A-Fa-f]{6}$"
    },
    "cellGap": {
      "type": "number",
      "description": "Gap between cells in pixels",
      "minimum": 0,
      "maximum": 12
    },
    "cellRadius": {
      "type": "number",
      "description": "Cell corner radius in pixels",
      "minimum": 0,
      "maximum": 16
    },
    "seriesOpacity": {
      "type": "number",
      "description": "Overall cell opacity",
      "minimum": 0.1,
      "maximum": 1
    },
    "cellStyles": {
      "type": "array",
      "description": "Sparse targeted cells. Select a row by exact rowLabel, or by one-based rowIndex when labels repeat; column is the exact bound value field. Send the complete list, or use style_heatmap_cell for one tiny edit.",
      "items": {
        "type": "object",
        "properties": {
          "rowLabel": {
            "type": "string",
            "description": "Exact rendered row label; omit when rowIndex is used",
            "maxLength": 8000,
            "pattern": ".*\\S.*"
          },
          "rowIndex": {
            "type": "number",
            "description": "One-based source row; omit when rowLabel is used",
            "minimum": 1
          },
          "column": {
            "type": "string",
            "description": "Exact bound value field / column heading",
            "maxLength": 8000,
            "pattern": ".*\\S.*"
          },
          "color": {
            "type": "string",
            "description": "Cell fill color",
            "maxLength": 8000,
            "pattern": "^#[0-9A-Fa-f]{6}$"
          },
          "textColor": {
            "type": "string",
            "description": "Cell value-label color",
            "maxLength": 8000,
            "pattern": "^#[0-9A-Fa-f]{6}$"
          }
        },
        "required": [
          "column"
        ],
        "additionalProperties": false
      },
      "maxItems": 250
    }
  },
  "required": [
    "title",
    "datasetId",
    "categoryField",
    "valueFields"
  ],
  "additionalProperties": false
}

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