GIS MCP Server

Instructions

Implementation Reference

• src/gis_mcp/shapely_functions.py:452-467 (handler)

  The handler function decorated with @gis_mcp.tool() that implements the 'make_valid' tool. It parses WKT geometry, applies Shapely's make_valid to fix invalid geometries, and returns the result as WKT.
  @gis_mcp.tool() def make_valid(geometry: str) -> Dict[str, Any]: """Make a geometry valid.""" try: from shapely import wkt, make_valid geom = wkt.loads(geometry) result = make_valid(geom) return { "status": "success", "geometry": result.wkt, "message": "Geometry made valid successfully" } except Exception as e: logger.error(f"Error making geometry valid: {str(e)}") raise ValueError(f"Failed to make geometry valid: {str(e)}")
• src/gis_mcp/shapely_functions.py:71-80 (registration)

  Resource listing that includes 'make_valid' among available validation operations, indicating its registration in the MCP toolset.
  @gis_mcp.resource("gis://operations/validation") def get_validation_operations() -> Dict[str, List[str]]: """List available validation operations.""" return { "operations": [ "is_valid", "make_valid", "simplify" ] }