};

        // Simulate typical flow
        callback.onPhaseStart(ChatPhaseCallback.PHASE_INTENT, "msg");
        callback.onPhaseStart(ChatPhaseCallback.PHASE_SEARCH, "msg");
        callback.onPhaseStart(ChatPhaseCallback.PHASE_EVALUATE, "msg");
        callback.onPhaseStart(ChatPhaseCallback.PHASE_FETCH, "msg");
        callback.onPhaseStart(ChatPhaseCallback.PHASE_ANSWER, "msg");

        assertEquals(5, phases.size());

     * @param keywords the search keywords (for search phase)
     */
    default void onPhaseStart(final String phase, final String message, final String keywords) {
        onPhaseStart(phase, message);
    }

    /**
     * Called when a processing phase completes.
     *
     * @param phase the phase name that completed
     */
    void onPhaseComplete(String phase);

                @Override
                public void onPhaseStart(final String phase, final String phaseMessage) {
                    onPhaseStart(phase, phaseMessage, null);
                }

                @Override
                public void onPhaseStart(final String phase, final String phaseMessage, final String keywords) {
                    try {

        long searchRequestedTime = 0L;

        try {
            // Phase 1: Intent Detection
            long phaseStartTime = System.currentTimeMillis();
            callback.onPhaseStart(ChatPhaseCallback.PHASE_INTENT, "Analyzing your question...");
            final IntentDetectionResult intentResult = llmClientManager.detectIntent(userMessage, history);