Agricultural Commodity Trading

osop_version: "1.0"
id: "agri-commodity-trading"
name: "Agricultural Commodity Trading"
description: "Farmer lists harvest → certification → buyer bidding → contract → logistics → delivery."

nodes:
  - id: "list_harvest"
    type: "human"
    subtype: "input"
    name: "Farmer Lists Harvest"
    description: "Post available quantity, grade, location, and harvest date."

  - id: "quality_cert"
    type: "system"
    name: "Quality Certification"
    description: "Third-party lab tests for moisture, protein, mycotoxins."

  - id: "buyer_bidding"
    type: "human"
    subtype: "input"
    name: "Buyer Bidding"
    description: "Registered buyers place bids with price per metric ton."
    timeout_sec: 259200

  - id: "contract_match"
    type: "system"
    name: "Contract Matching"
    description: "Platform matches best bid, generates purchase contract."

  - id: "logistics_coord"
    type: "api"
    subtype: "rest"
    name: "Logistics Coordination"
    description: "Arrange trucking from farm to buyer's warehouse or port."

  - id: "delivery_payment"
    type: "system"
    name: "Delivery & Payment"
    description: "Weigh-bridge confirmation triggers escrow release to farmer."
    security:
      risk_level: "high"

edges:
  - from: "list_harvest"
    to: "quality_cert"
    mode: "sequential"
  - from: "quality_cert"
    to: "buyer_bidding"
    mode: "conditional"
    when: "certification.grade != 'rejected'"
  - from: "buyer_bidding"
    to: "contract_match"
    mode: "sequential"
  - from: "contract_match"
    to: "logistics_coord"
    mode: "sequential"
  - from: "logistics_coord"
    to: "delivery_payment"
    mode: "sequential"