# Implemented Tools Documentation

## Tools List

### 1. `login`
- **Description**: Authenticates with the Vikunja API to get a session token.
- **Parameters**: None.
- **Returns**: Success or failure message.

### 2. `search_tasks`
- **Description**: Searches for tasks in Vikunja.
- **Parameters**: 
  - `query` (str): Search string to find tasks.
- **Returns**: A list of tasks matching the query.

### 3. `active_tasks`
- **Description**: Retrieves a list of active (not done) tasks from Vikunja.
- **Parameters**: 
  - `project_id` (int, optional): Filter tasks by project ID.
  - `is_favorite` (bool, optional): Filter tasks marked as favorite.
- **Returns**: A list of active tasks.

### 4. `get_task_details`
- **Description**: Retrieves details of a specific task in Vikunja.
- **Parameters**: 
  - `task_id` (int): The ID of the task.
- **Returns**: Details about the specified task.

### 5. `add_task`
- **Description**: Adds a new task to a Vikunja project.
- **Parameters**: 
  - `project_id` (int): The project ID to add the task to.
  - `title` (str): Task title.
  - `description` (str, optional): Task description.
- **Returns**: The created task or an error message.

### 6. `update_task_title`
- **Description**: Updates the title of an existing task.
- **Parameters**: 
  - `task_id` (int): The task's ID.
  - `title` (str): New title.
- **Returns**: The updated task or an error message.

### 7. `update_task_description`
- **Description**: Updates the description of an existing task.
- **Parameters**: 
  - `task_id` (int): The task's ID.
  - `description` (str): New description.
- **Returns**: The updated task or an error message.

### 8. `delete_task`
- **Description**: Deletes a specified task.
- **Parameters**: 
  - `task_id` (int): The task's ID.
- **Returns**: A success message or error.

### 9. `close_task`
- **Description**: Marks a task as done.
- **Parameters**: 
  - `task_id` (int): The task's ID.
- **Returns**: The closed task or error message.

### 10. `comment_task`
- **Description**: Adds a comment to a task.
- **Parameters**:
  - `task_id` (int): The task's ID.
  - `description` (str): Comment text.
- **Returns**: The added comment or an error message.

### 11. `lookup_comment_task`
- **Description**: Lists comments on a task.
- **Parameters**:
  - `task_id` (int): The task's ID.
- **Returns**: Comments related to the task or an error message.

### 12. `update_comment`
- **Description**: Updates a specific comment on a task.
- **Parameters**: 
  - `task_id` (int): The task ID.
  - `comment_id` (int): The comment ID.
  - `comment` (str): New content for the comment.
- **Returns**: The updated comment or error message.

### 13. `lookup_project`
- **Description**: Lists all accessible projects for the user.
- **Parameters**: None.
- **Returns**: A list of projects with their details.

### 14. `create_project`
- **Description**: Creates a new project in Vikunja.
- **Parameters**:
  - `title` (str): The project title.
  - `description` (str, optional): Description of the project.
  - `is_favorite` (bool, optional): Mark as favorite (default: False).
- **Returns**: The created project or error message.

### 15. `update_task_details`
- **Description**: Updates multiple fields of an existing task.
- **Parameters**:
  - `task_id` (int): The task's ID.
  - `title` (str, optional): The updated title of the task.
  - `description` (str, optional): Updated description for the task.
  - Other optional parameters include fields like `done`, `percent_done`, `due_date`, etc.
  - `labels` (str, optional): Comma-separated labels for the task.
- **Returns**: The updated task or an error message.