Get a list of all pending tasks. Optional filters: project (filter by project name), tags (filter by one or more tags).
add_task
Add a new task to TaskWarrior. Required: description (task description text). Optional: due (due date as ISO timestamp), priority (H, M, or L), project (lowercase with dots), tags (array of lowercase tags).
mark_task_done
Mark a task as completed. Required: identifier (task ID or UUID).