MetaCaster能从少量数据中训练出高效的轻量级时间序列预测器，对于资源有限的环境来说是个不错的选择，特别是与现有的轻量级预测器相比。
针对资源受限场景，提出MetaCaster，一种元 harness 优化的多智能体框架，通过智能体数据生成自动训练轻量级预测器，仅需少量示例和文本上下文。在18个数据集上实验表明，MetaCaster在保持高质量时间序列预测性能的同时，实现了数据效率和计算效率。
MetaCaster: Meta-Harness-Optimized Agent for End-to-End Few-Shot Learning of Lightweight Time Series Forecasters
Time series forecasting (TSF) is evolving toward multimodal and agentic settings, yet using foundation models remains uneconomical in resource-constrained scenarios, where compact, specialized forecasters are more desirable. However, lightweight forecasters typically require substantial training data, limiting their use in domains with scarce, slowly accumulated, or privacy-sensitive time series. To address this dilemma, we investigate the challenging problem of few-shot learning for lightweight forecasters. We propose MetaCaster, a meta-harness-optimized multi-agent framework that uses agentic data generation to automatically train specialized lightweight forecasters from only a few examples and textual contexts. Our work highlights a new TSF paradigm in which agents act not as forecasters but as intermediary engineers that prepare efficient, task-specific forecasters for deployment. Experiments on 18 datasets, 23 state-of-the-art lightweight forecasters, and 14 baselines demonstrate that MetaCaster achieves both data efficiency and computational efficiency while maintaining high-quality TSF performance.