# update_task

Behavior, inputs, outputs and permissions for update_task.

Source: https://docs.getridian.com/developers/tools/update_task/
Language: en
Reviewed: 2026-09-20

This reference is generated from the published tool contract.

## Behavior and boundaries

Updates only the supplied fields of a writable task returned by list_tasks or get_task. Set dueDate to null to remove it.

## Permissions

Granted scopes, accounts, calendars and visibility rules limit access. Workspace administrators do not automatically gain access to other users’ accounts.

`tasks:read`, `tasks:write`

[Consent and boundaries](https://docs.getridian.com/developers/authentication/)

## Input

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "accountId": {
      "type": "string",
      "minLength": 1
    },
    "taskListId": {
      "type": "string",
      "minLength": 1,
      "maxLength": 2048
    },
    "taskId": {
      "type": "string",
      "minLength": 1,
      "maxLength": 2048
    },
    "title": {
      "type": "string",
      "minLength": 1,
      "maxLength": 512
    },
    "dueDate": {
      "anyOf": [
        {
          "type": "string",
          "pattern": "^\\d{4}-\\d{2}-\\d{2}$"
        },
        {
          "type": "null"
        }
      ]
    }
  },
  "required": [
    "accountId",
    "taskListId",
    "taskId"
  ],
  "additionalProperties": false
}
```

## Output

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "found": {
      "type": "boolean",
      "const": true
    },
    "task": {
      "type": "object",
      "properties": {
        "id": {
          "type": "string"
        },
        "title": {
          "type": "string"
        },
        "status": {
          "type": "string",
          "enum": [
            "needs-action",
            "in-progress",
            "completed",
            "waiting-on-others",
            "deferred"
          ]
        },
        "dueDate": {
          "type": "string"
        },
        "updatedAt": {
          "type": "string"
        },
        "writable": {
          "type": "boolean"
        }
      },
      "required": [
        "id",
        "title",
        "status",
        "writable"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "found",
    "task"
  ],
  "additionalProperties": false
}
```

## Errors and retries

Check the tool result for errors. Do not blindly retry writes after a timeout. Check the calendar state first.

[Error handling](https://docs.getridian.com/developers/errors/)