{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://chimera.local/schemas/task-queue.schema.json",
  "title": "Chimera autonomous task queue",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema_version",
    "project",
    "status_values",
    "selection_rule",
    "tasks"
  ],
  "properties": {
    "schema_version": {
      "const": 1
    },
    "project": {
      "type": "string",
      "minLength": 1
    },
    "prepared_at": {
      "type": "string"
    },
    "status_values": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "uniqueItems": true
    },
    "selection_rule": {
      "type": "string",
      "minLength": 1
    },
    "tasks": {
      "type": "array",
      "minItems": 1,
      "items": {
        "$ref": "#/$defs/task"
      }
    }
  },
  "$defs": {
    "task": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "id",
        "epic",
        "title",
        "priority",
        "status",
        "dependencies",
        "summary",
        "scope",
        "done_when",
        "required_tests",
        "risk",
        "requires_live_hardware",
        "completion_policy",
        "documentation",
        "notes"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^CH-[0-9]{4}$"
        },
        "epic": {
          "type": "string",
          "minLength": 1
        },
        "title": {
          "type": "string",
          "minLength": 1
        },
        "priority": {
          "enum": [
            "P0",
            "P1",
            "P2",
            "P3"
          ]
        },
        "status": {
          "enum": [
            "pending",
            "in_progress",
            "done",
            "blocked_external",
            "skipped"
          ]
        },
        "dependencies": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^CH-[0-9]{4}$"
          },
          "uniqueItems": true
        },
        "dependency_policy": {
          "enum": [
            "done_only",
            "done_or_evidenced_blocked_external"
          ]
        },
        "summary": {
          "type": "string",
          "minLength": 1
        },
        "scope": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "done_when": {
          "type": "array",
          "minItems": 1,
          "items": {
            "type": "string",
            "minLength": 1
          }
        },
        "required_tests": {
          "type": "array",
          "minItems": 1,
          "items": {
            "type": "string",
            "minLength": 1
          }
        },
        "risk": {
          "enum": [
            "low",
            "medium",
            "high",
            "critical"
          ]
        },
        "requires_live_hardware": {
          "type": "boolean"
        },
        "completion_policy": {
          "type": "string",
          "minLength": 1
        },
        "documentation": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "notes": {
          "type": "string"
        }
      }
    }
  }
}