<!-- enhance-docs page=reference/mcp/canvas-render-importsource -->
<!-- enhance-docs release-sha256=dad2e0623acc56ece15d04a4baaff3f1e1f36c2114941c9e110479ef18927c25 -->

# canvas.render.importSource

<span class="reference-badge">mutation</span> <span class="reference-badge">write</span>

Use when the requested change exactly matches canvas.render.importSource; read the current state first when a version or identifier may have changed.

## Before calling

- Authenticate as the accountable Enhance person.
- Use only resource identifiers returned by an earlier capability result or supplied by the person.
- Reuse clientToken only when retrying this exact mutation input.

## Input

<details class="reference-schema">
<summary>Show complete JSON Schema</summary>

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "allOf": [
    {
      "type": "object",
      "properties": {
        "source": {
          "oneOf": [
            {
              "type": "object",
              "properties": {
                "kind": {
                  "type": "string",
                  "const": "screen"
                },
                "nodeId": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 200
                }
              },
              "required": [
                "kind",
                "nodeId"
              ],
              "additionalProperties": false
            },
            {
              "type": "object",
              "properties": {
                "kind": {
                  "type": "string",
                  "const": "html"
                },
                "html": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 262144
                },
                "label": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 500
                },
                "idPrefix": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 80,
                  "pattern": "^[\\w-]+$"
                }
              },
              "required": [
                "kind",
                "html",
                "label"
              ],
              "additionalProperties": false
            }
          ]
        },
        "destination": {
          "oneOf": [
            {
              "type": "object",
              "properties": {
                "kind": {
                  "type": "string",
                  "const": "adjacent"
                }
              },
              "required": [
                "kind"
              ],
              "additionalProperties": false
            },
            {
              "type": "object",
              "properties": {
                "kind": {
                  "type": "string",
                  "const": "insert-children"
                },
                "targetNodeId": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 200
                }
              },
              "required": [
                "kind",
                "targetNodeId"
              ],
              "additionalProperties": false
            },
            {
              "type": "object",
              "properties": {
                "kind": {
                  "type": "string",
                  "const": "replace"
                },
                "targetNodeId": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 200
                }
              },
              "required": [
                "kind",
                "targetNodeId"
              ],
              "additionalProperties": false
            }
          ]
        }
      },
      "required": [
        "source",
        "destination"
      ],
      "additionalProperties": false
    },
    {
      "type": "object",
      "properties": {
        "canvasId": {
          "type": "string",
          "format": "uuid",
          "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
        },
        "expectedVersion": {
          "type": "integer",
          "exclusiveMinimum": 0,
          "maximum": 9007199254740991
        }
      },
      "required": [
        "canvasId"
      ],
      "additionalProperties": false
    }
  ]
}
```
</details>

### Example

<details class="reference-schema">
<summary>Show example input</summary>

```json
{
  "canvasId": "00000000-0000-4000-8000-000000000010",
  "source": {
    "kind": "html",
    "html": "<div></div>",
    "label": "Example"
  },
  "destination": {
    "kind": "insert-children",
    "targetNodeId": "root"
  }
}
```
</details>

## Result

Returns a typed canvas.render.importSource result from the Enhance API without transport-specific prose.

## Recovery

- BAD_REQUEST: correct the named fields and call again.
- UNAUTHORIZED: restore Enhance authentication, then retry once.
- FORBIDDEN or NOT_FOUND: list accessible resources and choose an allowed identifier.
- CONFLICT: read the current resource, merge the intended change, and retry with its version.
- INTERNAL: run Enhance diagnostics, report the failure, and stop repeating the call.

## Continue with

- Read the affected canvas resource to confirm the result.

Compatibility: `f6a3d36e21316684d385f97831bfabbbc093c0821b78f2e9241731ddca694c4d`.