{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://neon-sprawl.local/schemas/contract-seed.json",
  "title": "ContractSeed",
  "description": "Inputs for contract issuance (POST …/contracts/issue body or audit record). Validated when HTTP wiring lands (NEO-147+). See docs/decomposition/modules/E7_M4_ContractMissionGenerator.md.",
  "type": "object",
  "additionalProperties": false,
  "required": ["playerId", "templateId", "seedBucket"],
  "properties": {
    "playerId": {
      "type": "string",
      "minLength": 1,
      "description": "Target player id for deterministic contractInstanceId suffix."
    },
    "templateId": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9_]*$",
      "description": "Contract template id from content/contracts; omit selection logic uses band + standing filters."
    },
    "seedBucket": {
      "type": "string",
      "minLength": 1,
      "description": "Deterministic rotation bucket (date string or client counter) for audit and instance id hashing."
    },
    "zoneDifficultyBand": {
      "type": "integer",
      "minimum": 1,
      "description": "Optional issue-time band override; prototype defaults to 1 when omitted."
    }
  }
}