{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://daarion.city/schemas/cm_payload_v1.json",
  "title": "Co-Memory Payload Schema v1",
  "description": "Canonical payload schema for Qdrant vectors in DAARION platform",
  "type": "object",
  "required": [
    "schema_version",
    "tenant_id",
    "owner_kind",
    "owner_id",
    "scope",
    "visibility",
    "indexed",
    "source_kind",
    "source_id",
    "chunk",
    "fingerprint",
    "created_at"
  ],
  "properties": {
    "schema_version": {
      "type": "string",
      "const": "cm_payload_v1",
      "description": "Schema version identifier"
    },
    "tenant_id": {
      "type": "string",
      "pattern": "^t_[a-z0-9_]+$",
      "description": "Tenant identifier (t_<slug>)"
    },
    "team_id": {
      "type": ["string", "null"],
      "pattern": "^team_[a-z0-9_]+$",
      "description": "Team identifier (team_<slug>)"
    },
    "project_id": {
      "type": ["string", "null"],
      "pattern": "^proj_[a-z0-9_]+$",
      "description": "Project identifier (proj_<slug>)"
    },
    "agent_id": {
      "type": ["string", "null"],
      "pattern": "^agt_[a-z0-9_]+$",
      "description": "Agent identifier (agt_<slug>)"
    },
    "owner_kind": {
      "type": "string",
      "enum": ["user", "team", "agent"],
      "description": "Type of owner"
    },
    "owner_id": {
      "type": "string",
      "minLength": 1,
      "description": "Owner identifier"
    },
    "scope": {
      "type": "string",
      "enum": ["docs", "messages", "memory", "artifacts", "signals"],
      "description": "Content type/scope"
    },
    "visibility": {
      "type": "string",
      "enum": ["public", "confidential", "private"],
      "description": "Access visibility level"
    },
    "indexed": {
      "type": "boolean",
      "description": "Whether content is searchable by AI"
    },
    "source_kind": {
      "type": "string",
      "enum": ["document", "wiki", "message", "artifact", "web", "code"],
      "description": "Type of source content"
    },
    "source_id": {
      "type": "string",
      "pattern": "^(doc|msg|art|web|code)_[A-Za-z0-9]+$",
      "description": "Source identifier with type prefix"
    },
    "chunk": {
      "type": "object",
      "required": ["chunk_id", "chunk_idx"],
      "properties": {
        "chunk_id": {
          "type": "string",
          "pattern": "^chk_[A-Za-z0-9]+$",
          "description": "Chunk identifier"
        },
        "chunk_idx": {
          "type": "integer",
          "minimum": 0,
          "description": "Chunk index within source"
        }
      }
    },
    "fingerprint": {
      "type": "string",
      "minLength": 1,
      "description": "Content hash for deduplication"
    },
    "created_at": {
      "type": "string",
      "format": "date-time",
      "description": "Creation timestamp (ISO 8601)"
    },
    "updated_at": {
      "type": ["string", "null"],
      "format": "date-time",
      "description": "Last update timestamp (ISO 8601)"
    },
    "acl": {
      "type": "object",
      "properties": {
        "read_team_ids": {
          "type": "array",
          "items": {"type": "string"},
          "description": "Teams with read access"
        },
        "read_agent_ids": {
          "type": "array",
          "items": {"type": "string"},
          "description": "Agents with read access"
        },
        "read_role_ids": {
          "type": "array",
          "items": {"type": "string"},
          "description": "Roles with read access"
        }
      }
    },
    "tags": {
      "type": "array",
      "items": {"type": "string"},
      "description": "Content tags for filtering"
    },
    "lang": {
      "type": ["string", "null"],
      "pattern": "^[a-z]{2}(-[A-Z]{2})?$",
      "description": "Language code (ISO 639-1)"
    },
    "importance": {
      "type": ["number", "null"],
      "minimum": 0,
      "maximum": 1,
      "description": "Importance score (0-1)"
    },
    "ttl_days": {
      "type": ["integer", "null"],
      "minimum": 1,
      "description": "Auto-delete after N days"
    },
    "channel_id": {
      "type": ["string", "null"],
      "description": "Channel/chat identifier for messages"
    },
    "embedding": {
      "type": "object",
      "properties": {
        "model": {
          "type": "string",
          "description": "Embedding model identifier"
        },
        "dim": {
          "type": "integer",
          "minimum": 1,
          "description": "Vector dimension"
        },
        "metric": {
          "type": "string",
          "enum": ["cosine", "dot", "euclidean"],
          "description": "Distance metric"
        }
      }
    }
  },
  "additionalProperties": true
}