Function normalizeToolCallInput

coderd/x/chatd/chatprompt/chatprompt.go:619–631

normalizeToolCallInput guarantees tool call input is a JSON object string. Anthropic drops assistant tool calls with malformed input, which can leave following tool results orphaned.

(input string)

// Anthropic drops assistant tool calls with malformed input, which can leave
// following tool results orphaned.
func normalizeToolCallInput(input string) string {
	input = strings.TrimSpace(input)
	if input == "" {
		return "{}"
	}

	var object map[string]any
	if err := json.Unmarshal([]byte(input), &object); err != nil || object == nil {
		return "{}"
	}

	return input
}

// ExtractToolCalls returns all tool call parts as content blocks.
func ExtractToolCalls(parts []fantasy.MessagePart) []fantasy.ToolCallContent {