Inventory optimizer

Skill a5c-ai/babysitter/library/specializations/domains/business/supply-chain/skills/inventory-optimizer

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npx -y skills add a5c-ai/babysitter --skill inventory-optimizer

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Multi-echelon inventory optimization skill with ABC/XYZ segmentation and service level targeting

SKILL.md

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Inventory Optimizer

Overview

The Inventory Optimizer provides comprehensive inventory optimization capabilities including segmentation, service level targeting, and multi-echelon optimization. It balances inventory investment against service levels to maximize supply chain performance.

Capabilities

ABC/XYZ Inventory Classification: Segment by value and demand variability
Service Level to Inventory Tradeoff: Model cost-service curves
Multi-Echelon Inventory Optimization: Optimize across network tiers
Safety Stock Calculation: Demand and lead time variability-based
Reorder Point and EOQ Optimization: Economic order quantity analysis
Slow-Moving/Obsolete Identification: SLOB analysis and disposition
Inventory Investment Optimization: Working capital optimization
Network Inventory Rebalancing: Cross-location optimization

Input Schema

inventory_optimization_request:
  items: array
    - sku_id: string
      annual_usage_value: float
      demand_history: array
      lead_time: integer
      unit_cost: float
      current_stock: integer
  service_level_targets: object
  network_locations: array
  cost_parameters:
    carrying_cost_rate: float
    ordering_cost: float
    stockout_cost: float
  optimization_objectives: array

Output Schema

inventory_optimization_output:
  segmentation:
    abc_classification: object
    xyz_classification: object
    abc_xyz_matrix: object
  optimal_parameters: array
    - sku_id: string
      safety_stock: integer
      reorder_point: integer
      order_quantity: integer
      service_level: float
  investment_analysis:
    current_investment: float
    optimal_investment: float
    reduction_potential: float
  slob_analysis:
    slow_moving: array
    obsolete: array
    disposition_recommendations: array
  network_rebalancing: object

Usage

ABC/XYZ Segmentation

Input: SKU master with annual usage and demand history
Process: Calculate value classification (ABC) and variability (XYZ)
Output: Nine-box segmentation with policy recommendations

Safety Stock Optimization

Input: Demand variability, lead time variability, service targets
Process: Calculate optimal safety stock by segment
Output: Safety stock quantities with investment impact

Network Inventory Balance

Input: Multi-location inventory positions, demand by location
Process: Identify imbalances and rebalancing opportunities
Output: Transfer recommendations with cost savings

Integration Points

ERP Systems: Inventory data, transactions, master data
Planning Systems: Demand forecasts, supply plans
Optimization Solvers: scipy, CPLEX, Gurobi
Tools/Libraries: scipy optimization, inventory algorithms

Process Dependencies

Inventory Optimization and Segmentation
Safety Stock Calculation and Optimization
Demand-Driven Material Requirements Planning (DDMRP)

Best Practices

Refresh segmentation quarterly
Validate demand variability calculations
Consider service differentiation by customer segment
Monitor fill rate vs. inventory investment tradeoffs
Establish SLOB review cadence
Document policy rationale for auditing