feat(claude): remove coder_report_task tool call message

Author: 35C4n0r

lib/msgfmt/message_box.go

@@ -100,3 +100,26 @@ func removeAmpMessageBox(msg string) string {
 	}
 	return formattedMsg
 }
+
+func removeClaudeReportTaskToolCall(msg string) string {
+	// If we encounter a line starting with `● coder - coder_report_task (MCP)` -- to  {
+	lines := strings.Split(msg, "\n")
+	toolCallMarkerIdx := -1
+	toolCallStartIdx := -1
+	for i := len(lines) - 1; i >= 0; i-- {
+		line := strings.TrimSpace(lines[i])
+		if strings.HasPrefix(line, "● coder - coder_report_task (MCP)") {
+			toolCallMarkerIdx = i
+		}
+		if toolCallMarkerIdx != -1 && line == "{" {
+			toolCallStartIdx = i
+			break
+		}
+	}
+	// If we didn't find the marker, return the original message
+	if toolCallMarkerIdx == -1 {
+		return msg
+	}
+	// Remove from the opening brace to the marker line (inclusive)
+	return strings.Join(append(lines[:toolCallStartIdx], lines[toolCallMarkerIdx+1:]...), "\n")
+}

lib/msgfmt/msgfmt.go

@@ -254,6 +254,14 @@ func formatGenericMessage(message string, userInput string, agentType AgentType)
 	return message
 }
 
+func formatClaudeMessage(message string, userInput string) string {
+	message = RemoveUserInput(message, userInput, AgentTypeClaude)
+	message = removeMessageBox(message)
+	message = removeClaudeReportTaskToolCall(message)
+	message = trimEmptyLines(message)
+	return message
+}
+
 func formatCodexMessage(message string, userInput string) string {
 	message = RemoveUserInput(message, userInput, AgentTypeCodex)
 	message = removeCodexInputBox(message)
@@ -278,7 +286,7 @@ func formatAmpMessage(message string, userInput string) string {
 func FormatAgentMessage(agentType AgentType, message string, userInput string) string {
 	switch agentType {
 	case AgentTypeClaude:
-		return formatGenericMessage(message, userInput, agentType)
+		return formatClaudeMessage(message, userInput)
 	case AgentTypeGoose:
 		return formatGenericMessage(message, userInput, agentType)
 	case AgentTypeAider: