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logistics - Functional Specification

Version: v1.2.3 | Status: Active | Last Updated: March 2026

Purpose

The logistics module consolidates orchestration, task management, and scheduling capabilities for coordinating workflows, jobs, and time-based execution.

Design Principles

Modularity

  • Clear separation between orchestration, task, and schedule concerns
  • Each submodule is self-contained with well-defined interfaces
  • Extensible architecture for adding new logistics capabilities

Internal Coherence

  • Unified interfaces across submodules
  • Consistent patterns for workflow, task, and schedule management
  • Shared error handling and logging

Functionality

  • Orchestration: Complex workflow coordination with DAG execution
  • Task: Backend-agnostic queue management with priority and retries
  • Schedule: Advanced scheduling with cron patterns, recurring schedules, and timezone support

Architecture

graph TD
    Logistics[Logistics Module]
    Orchestration[Orchestration Submodule]
    Task[Task Submodule]
    Schedule[Schedule Submodule]
    
    Logistics --> Orchestration
    Logistics --> Task
    Logistics --> Schedule
    
    Orchestration --> Project[Project Orchestration]
    Task --> Queue[Queue Management]
    Schedule --> Cron[Cron Scheduling]
    Schedule --> Recurring[Recurring Schedules]
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Functional Requirements

Orchestration

  1. Workflow Definition: Define tasks and dependencies via config/code
  2. Execution: Run tasks in correct topological order
  3. State Persistence: Allow recovery from crashes

Task

  1. Enqueue/Dequeue: Add and remove jobs from queue
  2. Priority: Support priority-based queuing
  3. Retries: Automatic job retry on failure
  4. Monitoring: Queue statistics and job status

Schedule

  1. Cron Patterns: Parse and execute cron-like schedules
  2. Recurring: Define daily, weekly, monthly schedules
  3. Timezone: Timezone-aware scheduling
  4. Integration: Work with task queue for job execution

Integration Points

  • logging_monitoring/ - Logging and monitoring
  • performance/ - Performance monitoring
  • Other Codomyrmex modules for workflow coordination

Quality Standards

Code Quality

  • Type hints for all functions
  • PEP 8 compliance
  • Comprehensive error handling

Testing Standards

  • ≥80% coverage
  • Submodule-specific tests
  • Integration tests

Documentation Standards

  • README.md, AGENTS.md, SPEC.md for each submodule
  • API specifications
  • Usage examples

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