sequenceDiagram
    participant Copilot
    participant editWorkflow
    participant createValidatedEdge
    participant validateSourceHandleForBlock
    participant validateConditionHandle
    participant validateTargetHandle
    participant WorkflowState

    Copilot->>editWorkflow: Execute operations (add/edit blocks with connections)
    editWorkflow->>editWorkflow: applyOperationsToWorkflowState()
    
    Note over editWorkflow: Process operations in order: delete, extract, add, insert, edit
    
    alt Add/Edit operation with connections
        editWorkflow->>createValidatedEdge: Create edge with source/target handles
        
        createValidatedEdge->>WorkflowState: Check if target block exists
        alt Target block missing
            WorkflowState-->>createValidatedEdge: Block not found
            createValidatedEdge->>editWorkflow: Skip edge (log invalid_edge_target)
        end
        
        createValidatedEdge->>WorkflowState: Check if source block exists
        alt Source block missing
            WorkflowState-->>createValidatedEdge: Block not found
            createValidatedEdge->>editWorkflow: Skip edge (log invalid_edge_source)
        end
        
        createValidatedEdge->>validateSourceHandleForBlock: Validate source handle for block type
        
        alt Block type specific validation
            validateSourceHandleForBlock->>validateSourceHandleForBlock: Check block type (loop/parallel/condition/router/default)
            
            alt Condition block
                validateSourceHandleForBlock->>validateConditionHandle: Validate condition handle against conditions
                validateConditionHandle->>validateConditionHandle: Parse conditions array
                validateConditionHandle->>validateConditionHandle: Build valid handles set (condition-{id}, condition-{blockId}-if/else-if/else)
                validateConditionHandle-->>validateSourceHandleForBlock: Return validation result
            end
            
            validateSourceHandleForBlock-->>createValidatedEdge: Return validation result
        end
        
        alt Invalid source handle
            createValidatedEdge->>editWorkflow: Skip edge (log invalid_source_handle)
        end
        
        createValidatedEdge->>validateTargetHandle: Validate target handle
        validateTargetHandle-->>createValidatedEdge: Return validation result
        
        alt Invalid target handle
            createValidatedEdge->>editWorkflow: Skip edge (log invalid_target_handle)
        end
        
        createValidatedEdge->>WorkflowState: Add validated edge
        createValidatedEdge-->>editWorkflow: Return success
    end
    
    editWorkflow->>WorkflowState: Return modified workflow state with skipped items