Function need_arg

ds4_cli.c:1337–1343

    case DS4_THINK_MAX:  return "Reasoning Effort: Max";
    case DS4_THINK_NONE: return NULL;
    }
    return NULL;
}

static void repl_chat_build_think_prefix(ds4_engine *engine,
                                         ds4_think_mode mode,
                                         ds4_tokens *prefix) {
    if (ds4_engine_is_glm_dsa(engine)) {
        const char *effort = repl_glm_reasoning_effort_text(mode);
        if (effort) ds4_chat_append_message(engine, prefix, "system", effort);