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[log] Add debug logging to mcp/tool_result.go #2061

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[log] Add debug logging to mcp/tool_result.go #2061

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Copilot Mar 17, 2026
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[log] Add debug logging to mcp/tool_result.go
Copilot Mar 17, 2026
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4 changes: 4 additions & 0 deletions internal/mcp/tool_result.go
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ var logToolResult = logger.New("mcp:tool_result")
// ConvertToCallToolResult converts backend result data to SDK CallToolResult format.
// The backend returns a JSON object with a "content" field containing an array of content items.
func ConvertToCallToolResult(data interface{}) (*sdk.CallToolResult, error) {
logToolResult.Print("Converting backend result to CallToolResult")
// Try to marshal and unmarshal to get the structure
dataBytes, err := json.Marshal(data)
if err != nil {
Expand Down Expand Up @@ -97,6 +98,7 @@ func ConvertToCallToolResult(data interface{}) (*sdk.CallToolResult, error) {
}
}

logToolResult.Printf("Converted result: content_items=%d, is_error=%v", len(content), backendResult.IsError)
return &sdk.CallToolResult{
Content: content,
IsError: backendResult.IsError,
Expand All @@ -106,6 +108,7 @@ func ConvertToCallToolResult(data interface{}) (*sdk.CallToolResult, error) {
// ParseToolArguments extracts and unmarshals tool arguments from a CallToolRequest.
// Returns the parsed arguments as a map, or an error if parsing fails.
func ParseToolArguments(req *sdk.CallToolRequest) (map[string]interface{}, error) {
logToolResult.Printf("Parsing arguments for tool: %s", req.Params.Name)
var toolArgs map[string]interface{}
if req.Params.Arguments != nil {
if err := json.Unmarshal(req.Params.Arguments, &toolArgs); err != nil {
Expand All @@ -115,5 +118,6 @@ func ParseToolArguments(req *sdk.CallToolRequest) (map[string]interface{}, error
// No arguments provided, use empty map
toolArgs = make(map[string]interface{})
}
logToolResult.Printf("Parsed %d arguments for tool: %s", len(toolArgs), req.Params.Name)
return toolArgs, nil
}
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