add_bounds_restriction
Apply numeric constraints to parameters in IDS specifications by defining minimum and maximum values for validation.
Instructions
Add numeric bounds restriction.
Args: spec_id: Specification identifier or name facet_index: Index of facet in location (0-based) parameter_name: Which parameter to restrict (e.g., "value") base_type: XSD base type (e.g., "xs:double", "xs:integer") ctx: FastMCP Context (auto-injected) location: "applicability" or "requirements" (default: "requirements") min_inclusive: Minimum value (inclusive) max_inclusive: Maximum value (inclusive) min_exclusive: Minimum value (exclusive) max_exclusive: Maximum value (exclusive)
Returns: {"status": "added", "restriction_type": "bounds", "spec_id": "S1"}
Example: Add bounds to property value: Height must be between 2.4 and 3.0 meters
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| spec_id | Yes | ||
| facet_index | Yes | ||
| parameter_name | Yes | ||
| base_type | Yes | ||
| location | No | requirements | |
| min_inclusive | No | ||
| max_inclusive | No | ||
| min_exclusive | No | ||
| max_exclusive | No |
Implementation Reference
- Implements the core logic for adding numeric bounds restrictions (min/max inclusive/exclusive) to a specified parameter in an IDS facet using IfcTester's Restriction API.async def add_bounds_restriction( spec_id: str, facet_index: int, parameter_name: str, base_type: str, ctx: Context, location: str = "requirements", min_inclusive: Optional[float] = None, max_inclusive: Optional[float] = None, min_exclusive: Optional[float] = None, max_exclusive: Optional[float] = None ) -> Dict[str, Any]: """ Add numeric bounds restriction. Args: spec_id: Specification identifier or name facet_index: Index of facet in location (0-based) parameter_name: Which parameter to restrict (e.g., "value") base_type: XSD base type (e.g., "xs:double", "xs:integer") ctx: FastMCP Context (auto-injected) location: "applicability" or "requirements" (default: "requirements") min_inclusive: Minimum value (inclusive) max_inclusive: Maximum value (inclusive) min_exclusive: Minimum value (exclusive) max_exclusive: Maximum value (exclusive) Returns: {"status": "added", "restriction_type": "bounds", "spec_id": "S1"} Example: Add bounds to property value: Height must be between 2.4 and 3.0 meters """ try: ids_obj = await get_or_create_session(ctx) spec = _find_specification(ids_obj, spec_id) await ctx.info(f"Adding bounds restriction to {spec_id}, facet {facet_index}") # Get the facet facet = _get_facet_from_spec(spec, location, facet_index) # Build bounds parameters bounds_params = {} if min_inclusive is not None: bounds_params["minInclusive"] = min_inclusive if max_inclusive is not None: bounds_params["maxInclusive"] = max_inclusive if min_exclusive is not None: bounds_params["minExclusive"] = min_exclusive if max_exclusive is not None: bounds_params["maxExclusive"] = max_exclusive # Create bounds restriction using IfcTester # Normalize base type (remove 'xs:' prefix if present) normalized_base = _normalize_base_type(base_type) restriction = ids.Restriction( base=normalized_base, options=bounds_params ) # Apply restriction to the parameter _apply_restriction_to_facet(facet, parameter_name, restriction) await ctx.info(f"Bounds restriction added: {bounds_params}") return { "status": "added", "restriction_type": "bounds", "spec_id": spec_id, "facet_index": facet_index, "parameter": parameter_name, "bounds": bounds_params } except ToolError: raise except Exception as e: await ctx.error(f"Failed to add bounds restriction: {str(e)}") raise ToolError(f"Failed to add bounds restriction: {str(e)}")
- src/ids_mcp_server/server.py:47-47 (registration)Registers the add_bounds_restriction tool function with the FastMCP server instance.mcp_server.tool(restrictions.add_bounds_restriction)
- Helper function that applies a Restriction object to a specific parameter on a facet object, used by add_bounds_restriction and other restriction tools.def _apply_restriction_to_facet( facet: Any, parameter_name: str, restriction: ids.Restriction ) -> None: """ Apply restriction to a facet parameter. Args: facet: Facet object (Entity, Property, Attribute, etc.) parameter_name: Parameter to restrict (e.g., "value", "propertySet", "baseName") restriction: Restriction object to apply Raises: ToolError: If parameter doesn't exist on facet """ # Check if parameter exists if not hasattr(facet, parameter_name): raise ToolError( f"Parameter '{parameter_name}' not found on facet type {type(facet).__name__}" ) # Set the restriction on the parameter setattr(facet, parameter_name, restriction)
- Helper function to retrieve a specific facet from an IDS specification by location ('applicability' or 'requirements') and index, used by all restriction tools.def _get_facet_from_spec( spec: ids.Specification, location: str, facet_index: int ) -> Any: """ Get facet from specification by location and index. Args: spec: Specification object location: "applicability" or "requirements" facet_index: Index of facet in location (0-based) Returns: Facet object Raises: ToolError: If location invalid or index out of range """ if location == "applicability": facets = spec.applicability elif location == "requirements": facets = spec.requirements else: raise ToolError(f"Invalid location: {location}. Must be 'applicability' or 'requirements'") if facet_index < 0 or facet_index >= len(facets): raise ToolError( f"Facet index {facet_index} out of range. " f"Location '{location}' has {len(facets)} facet(s)" ) return facets[facet_index]
- Helper function to normalize XSD base types by removing 'xs:' prefix, used when creating Restriction objects.def _normalize_base_type(base_type: str) -> str: """ Normalize XML Schema base type for IfcTester. IfcTester adds 'xs:' prefix automatically, so we need to remove it if present. Args: base_type: Base type (e.g., "xs:string" or "string") Returns: Normalized base type without 'xs:' prefix (e.g., "string") """ if base_type.startswith("xs:"): return base_type[3:] # Remove 'xs:' prefix return base_type