The field of large language model (LLM) agents is rapidly advancing, with a focus on improving their capabilities in complex tasks and environments. Recent developments have centered around enhancing the planning and optimization abilities of LLM agents, enabling them to better adapt to new information and efficiently utilize past experiences. Techniques such as hierarchical search, predictive value models, and lookahead search have been proposed to address the challenges of optimizing LLM agents. Additionally, there is a growing interest in applying LLMs to various domains, including design structure matrix optimization, chip design, and self-regulated learning. These advancements have the potential to significantly improve the performance and efficiency of LLM agents in a wide range of applications. Noteworthy papers in this area include AgentSwift, which introduces a comprehensive framework for efficient LLM agent design, and Mirage-1, which proposes a hierarchical multimodal skills module for long-horizon task planning. OPT-BENCH is also a notable benchmark for evaluating LLM agents on large-scale search space optimization problems.