Initial commit: CarrotAssistant backend (Go + Gin + SQLite, OpenAI-compatible agent runtime)

internal/llm/util.go

@@ -0,0 +1,36 @@
+package llm
+
+import (
+	"encoding/json"
+)
+
+// parseArguments decodes a tool-call arguments JSON string into a map. An
+// empty or malformed string yields an empty map rather than an error, so a
+// misbehaving model never crashes the loop — the executor will simply receive
+// no arguments and the audit log will show what the model actually produced.
+func parseArguments(raw string) (map[string]any, error) {
+	if raw == "" {
+		return map[string]any{}, nil
+	}
+	var out map[string]any
+	if err := json.Unmarshal([]byte(raw), &out); err != nil {
+		return map[string]any{}, err
+	}
+	if out == nil {
+		out = map[string]any{}
+	}
+	return out, nil
+}
+
+// marshalArguments serialises a map back to a JSON string for the assistant
+// echo message. A nil map yields "{}".
+func marshalArguments(args map[string]any) string {
+	if args == nil {
+		return "{}"
+	}
+	b, err := json.Marshal(args)
+	if err != nil {
+		return "{}"
+	}
+	return string(b)
+}