return 800;
    }

    /**
     * Gets the maximum characters for assistant summary in history.
     *
     * @return the maximum characters
     */
    default int getHistoryAssistantSummaryMaxChars() {
        return 800;
    }

     * The default returns 800. Override in subclasses for provider-specific tuning.
     *
     * @return the maximum characters
     */
    @Override
    public int getHistoryAssistantSummaryMaxChars() {
        return 800;
    }

    // --- Concurrency control ---

    /**
     * Gets the maximum number of concurrent requests to the LLM provider.

        }

        @Override
        public int getHistoryAssistantMaxChars() {
            return testHistoryAssistantMaxChars;
        }

        @Override
        public int getHistoryAssistantSummaryMaxChars() {
            return testHistoryAssistantSummaryMaxChars;
        }

        @Override
        protected void applyPromptTypeParams(final LlmChatRequest request, final String promptType) {

        final LlmClient client = llmClientManager.getClient();
        final int assistantMaxChars = client != null ? client.getHistoryAssistantMaxChars() : 800;
        final int summaryMaxChars = client != null ? client.getHistoryAssistantSummaryMaxChars() : 800;

        final List<LlmMessage> history = new ArrayList<>();
        for (final ChatMessage msg : session.getMessages()) {
            if (msg.isUser()) {