{
  "$defs": {
    "action": {
      "additionalProperties": false,
      "properties": {
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "kind": {
          "enum": [
            "select",
            "submit",
            "navigate",
            "search",
            "filter",
            "sort",
            "paginate",
            "bulk_action"
          ]
        },
        "label": {
          "minLength": 1,
          "type": "string"
        },
        "payload_bindings": {
          "items": {
            "pattern": "^[A-Za-z0-9_.-]+$",
            "type": "string"
          },
          "maxItems": 64,
          "type": "array"
        },
        "target_ref": {
          "anyOf": [
            {
              "pattern": "^(region|binding|motif|view):[A-Za-z0-9_.-]+$",
              "type": "string"
            },
            {
              "const": ""
            },
            {
              "type": "null"
            }
          ]
        },
        "target_region": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        }
      },
      "required": [
        "id",
        "kind",
        "label",
        "target_region",
        "target_ref",
        "payload_bindings"
      ],
      "type": "object"
    },
    "binding": {
      "additionalProperties": false,
      "properties": {
        "address": {
          "pattern": "^node:[A-Za-z0-9_.-]+(?:#attr:[A-Za-z0-9_.-]+|#slot:[A-Za-z0-9_.-]+(?:\\[\\d+])?|#edge:[A-Za-z0-9_.-]+)?$",
          "type": "string"
        },
        "cardinality": {
          "enum": [
            "exactly_once"
          ]
        },
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "present_as": {
          "enum": [
            "badge",
            "image_slot",
            "input",
            "label",
            "rich_text",
            "rule",
            "text",
            "value"
          ]
        },
        "target_region": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        }
      },
      "required": [
        "id",
        "address",
        "target_region",
        "present_as",
        "cardinality"
      ],
      "type": "object"
    },
    "edge_values": {
      "additionalProperties": false,
      "properties": {
        "values": {
          "items": {
            "pattern": "^[A-Za-z0-9_.-]+$",
            "type": "string"
          },
          "maxItems": 200,
          "type": "array"
        }
      },
      "required": [
        "values"
      ],
      "type": "object"
    },
    "group": {
      "additionalProperties": false,
      "properties": {
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "kind": {
          "enum": [
            "ordered"
          ]
        },
        "members": {
          "items": {
            "pattern": "^[A-Za-z0-9_.-]+$",
            "type": "string"
          },
          "maxItems": 400,
          "type": "array"
        },
        "target_region": {
          "anyOf": [
            {
              "pattern": "^[A-Za-z0-9_.-]+$",
              "type": "string"
            },
            {
              "const": ""
            },
            {
              "type": "null"
            }
          ]
        }
      },
      "required": [
        "id",
        "kind",
        "members",
        "target_region"
      ],
      "type": "object"
    },
    "motif": {
      "additionalProperties": false,
      "properties": {
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "kind": {
          "enum": [
            "table",
            "dashboard",
            "outline",
            "comparison",
            "list",
            "form",
            "detail",
            "empty_state",
            "loading_state",
            "error_state",
            "hero"
          ]
        },
        "members": {
          "items": {
            "pattern": "^[A-Za-z0-9_.-]+$",
            "type": "string"
          },
          "maxItems": 400,
          "type": "array"
        },
        "region": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        }
      },
      "required": [
        "id",
        "kind",
        "region",
        "members"
      ],
      "type": "object"
    },
    "region": {
      "additionalProperties": false,
      "properties": {
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "layout": {
          "enum": [
            "stack",
            "grid",
            "cluster"
          ]
        },
        "max_children": {
          "anyOf": [
            {
              "minimum": 0,
              "type": "integer"
            },
            {
              "type": "null"
            }
          ]
        },
        "min_children": {
          "minimum": 0,
          "type": "integer"
        },
        "parent_region": {
          "anyOf": [
            {
              "pattern": "^[A-Za-z0-9_.-]+$",
              "type": "string"
            },
            {
              "const": ""
            },
            {
              "type": "null"
            }
          ]
        },
        "role": {
          "minLength": 1,
          "type": "string"
        }
      },
      "required": [
        "id",
        "parent_region",
        "role",
        "layout",
        "min_children",
        "max_children"
      ],
      "type": "object"
    },
    "style": {
      "additionalProperties": false,
      "properties": {
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "target": {
          "pattern": "^(?:(?:region|binding|motif|view):)?[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "token": {
          "enum": [
            "emphasis.low",
            "emphasis.medium",
            "emphasis.high",
            "density.compact",
            "density.regular",
            "density.airy",
            "palette.temperature",
            "tone.neutral",
            "tone.muted",
            "tone.accent",
            "tone.warning",
            "tone.positive",
            "action.accent",
            "surface.none",
            "surface.subtle",
            "surface.strong",
            "rhythm.hierarchy",
            "narrative.flow",
            "align.start",
            "align.center",
            "align.end"
          ]
        }
      },
      "required": [
        "id",
        "target",
        "token"
      ],
      "type": "object"
    },
    "substrate": {
      "additionalProperties": false,
      "properties": {
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "nodes": {
          "additionalProperties": {
            "$ref": "#/$defs/substrate_node"
          },
          "maxProperties": 200,
          "propertyNames": {
            "pattern": "^[A-Za-z0-9_.-]+$"
          },
          "type": "object"
        },
        "root_id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        }
      },
      "required": [
        "id",
        "root_id",
        "nodes"
      ],
      "type": "object"
    },
    "substrate_node": {
      "additionalProperties": false,
      "properties": {
        "attrs": {
          "maxProperties": 64,
          "propertyNames": {
            "pattern": "^[A-Za-z0-9_.-]+$"
          },
          "type": "object"
        },
        "edges": {
          "additionalProperties": {
            "$ref": "#/$defs/edge_values"
          },
          "maxProperties": 64,
          "propertyNames": {
            "pattern": "^[A-Za-z0-9_.-]+$"
          },
          "type": "object"
        },
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "kind": {
          "minLength": 1,
          "type": "string"
        },
        "slots": {
          "additionalProperties": {
            "$ref": "#/$defs/values"
          },
          "maxProperties": 64,
          "propertyNames": {
            "pattern": "^[A-Za-z0-9_.-]+$"
          },
          "type": "object"
        }
      },
      "required": [
        "id",
        "kind",
        "attrs",
        "slots",
        "edges"
      ],
      "type": "object"
    },
    "values": {
      "additionalProperties": false,
      "properties": {
        "values": {
          "maxItems": 200,
          "type": "array"
        }
      },
      "required": [
        "values"
      ],
      "type": "object"
    },
    "view_spec": {
      "additionalProperties": false,
      "not": {
        "anyOf": [
          {
            "required": [
              "inputs"
            ]
          },
          {
            "required": [
              "projections"
            ]
          },
          {
            "required": [
              "rules"
            ]
          }
        ]
      },
      "properties": {
        "actions": {
          "items": {
            "$ref": "#/$defs/action"
          },
          "maxItems": 64,
          "type": "array"
        },
        "bindings": {
          "items": {
            "$ref": "#/$defs/binding"
          },
          "maxItems": 400,
          "type": "array"
        },
        "complexity_tier": {
          "minimum": 1,
          "type": "integer"
        },
        "groups": {
          "items": {
            "$ref": "#/$defs/group"
          },
          "maxItems": 64,
          "type": "array"
        },
        "id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "motifs": {
          "items": {
            "$ref": "#/$defs/motif"
          },
          "maxItems": 32,
          "type": "array"
        },
        "regions": {
          "items": {
            "$ref": "#/$defs/region"
          },
          "maxItems": 32,
          "type": "array"
        },
        "root_region": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        },
        "styles": {
          "items": {
            "$ref": "#/$defs/style"
          },
          "maxItems": 400,
          "type": "array"
        },
        "substrate_id": {
          "pattern": "^[A-Za-z0-9_.-]+$",
          "type": "string"
        }
      },
      "required": [
        "id",
        "substrate_id",
        "complexity_tier",
        "root_region",
        "regions",
        "bindings",
        "groups",
        "motifs",
        "styles",
        "actions"
      ],
      "type": "object"
    }
  },
  "$id": "https://viewspec.dev/agent-intent-bundle.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "description": "Agent-authored ViewSpec compiler input. Agents output IntentBundle JSON, never CompositionIR.",
  "not": {
    "anyOf": [
      {
        "required": [
          "design"
        ]
      },
      {
        "required": [
          "motif_library"
        ]
      }
    ]
  },
  "properties": {
    "substrate": {
      "$ref": "#/$defs/substrate"
    },
    "view_spec": {
      "$ref": "#/$defs/view_spec"
    }
  },
  "required": [
    "substrate",
    "view_spec"
  ],
  "title": "ViewSpec Agent IntentBundle",
  "type": "object",
  "x-viewspec-invariants": [
    "view_spec.substrate_id must equal substrate.id.",
    "substrate.root_id must be a key in substrate.nodes.",
    "Each substrate.nodes object key must equal that node object's id.",
    "view_spec.root_region must be declared in view_spec.regions.",
    "Region parent_region links must form one acyclic tree rooted at view_spec.root_region.",
    "Semantic node edges must reference declared substrate node ids.",
    "Bindings, groups, motifs, styles, and actions may only reference declared ids.",
    "Motifs must be semantically complete for their kind before local compilation.",
    "Hosted-only fields design, motif_library, view_spec.inputs, view_spec.projections, and view_spec.rules are rejected by the local schema and validate-intent.",
    "Unknown extension fields are rejected instead of silently ignored.",
    "JSON Schema enforces shape and caps; viewspec validate-intent enforces cross-reference invariants."
  ]
}