{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:aiwu:schema:ai-workflow-plan:v1",
  "title": "AIWU AI Plan v1",
  "type": "object",
  "additionalProperties": false,
  "required": ["name", "description", "nodes", "edges"],
  "properties": {
    "name": {"type": "string", "maxLength": 200},
    "description": {"type": "string", "maxLength": 4000},
    "actual_cost_micro_usd": {"type": "integer", "minimum": 0},
    "nodes": {
      "type": "array", "minItems": 1, "maxItems": 10,
      "items": {
        "type": "object", "additionalProperties": false, "required": ["key", "type", "code", "position", "settings"],
        "properties": {
          "key": {"type": "string", "pattern": "^[a-z][a-z0-9_]{0,39}$"},
          "type": {"enum": ["trigger", "logic", "action"]},
          "code": {"type": "string", "pattern": "^[a-z0-9_]{2,80}$"},
          "position": {"type": "object", "additionalProperties": false, "required": ["x", "y"], "properties": {"x": {"type": "number", "minimum": -1000000, "maximum": 1000000}, "y": {"type": "number", "minimum": -1000000, "maximum": 1000000}}},
          "settings": {"type": "object"}
        }
      }
    },
    "edges": {
      "type": "array", "maxItems": 20,
      "items": {
        "type": "object", "additionalProperties": false, "required": ["source_key", "target_key", "source_handle", "target_handle"],
        "properties": {
          "source_key": {"type": "string", "pattern": "^[a-z][a-z0-9_]{0,39}$"},
          "target_key": {"type": "string", "pattern": "^[a-z][a-z0-9_]{0,39}$"},
          "source_handle": {"type": "string", "pattern": "^[a-z][a-z0-9_.-]{0,63}$"},
          "target_handle": {"type": "string", "pattern": "^[a-z][a-z0-9_.-]{0,63}$"}
        }
      }
    }
  }
}