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name: skill-141 description: "Tools for managing time-based planning problems in PDDL domains, focusing on task scheduling and resource allocation." license: Proprietary. LICENSE.txt has complete terms

Requirements for Outputs

General Guidelines

PDDL Files

• Domain files must define actions with time constraints and resources.
• Problem files should specify deadlines for tasks.
• Schedules must follow sequential constraints.

Scheduler Behavior

• Scheduling must complete within a specified timeout.
• If no schedule exists, return an empty schedule or an explicit failure flag.

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PDDL Scheduling Skills

1. Load Scheduling Domain and Problem

load-scheduling-problem(domain_path, problem_path)

Description:
Loads a PDDL domain file and problem file for scheduling tasks, creating a scheduling problem instance.

Parameters:

• domain_path (str): Path to the PDDL domain file.
• problem_path (str): Path to the PDDL problem file.

Returns:

• scheduling_problem: A scheduling problem object.

Example:

scheduling_problem = load_scheduling_problem("scheduling_domain.pddl", "tasks_to_schedule.pddl")

Notes:

• Uses unified_planning.io.PDDLReader.
• Raises an error if parsing fails.

2. Generate Schedule

generate-schedule(scheduling_problem)

Description: Generates a schedule for the specified planning problem based on task timings and deadlines.

Parameters:

• scheduling_problem: A scheduling problem instance.

Returns:

• schedule: A list of scheduled tasks with timing.

Example:

schedule = generate_schedule(scheduling_problem)

Notes:

• Uses unified_planning.shortcuts.Scheduler.
• Returns None if no schedule can be found.

3. Save Schedule

save-schedule(schedule, output_path)

Description: Writes the generated schedule to a file in a specified format suitable for scheduling applications.

Parameters:

• schedule: A list of scheduled tasks.
• output_path (str): Path where the schedule will be saved.

Example:

save_schedule(schedule, "scheduled_tasks.txt")

Notes:

• Utilizes a specialized file writer for scheduling formats.

4. Validate Schedule

validate-schedule(scheduling_problem, schedule)

Description: Validates that the generated schedule meets the task requirements and deadlines specified in the problem.

Parameters:

• scheduling_problem: The scheduling problem.
• schedule: The generated schedule.

Returns:

• bool: True if the schedule is valid, False otherwise.

Example:

is_valid = validate_schedule(scheduling_problem, schedule)

Notes:

• Uses unified_planning.shortcuts.SchedulingValidator.
• Ensures that task timing and resource allocation are correct.

Example Workflow

# Load scheduling problem
scheduling_problem = load_scheduling_problem("scheduling_domain.pddl", "tasks_to_schedule.pddl")

# Generate schedule
schedule = generate_schedule(scheduling_problem)

# Validate schedule
if not validate_schedule(scheduling_problem, schedule):
    raise ValueError("Generated schedule is invalid")

# Save schedule
save_schedule(schedule, "scheduled_tasks.txt")

Notes

• This skill set aids in the effective scheduling of tasks within PDDL domains.
• Ideal for research in automated scheduling and resource management.