Decision-Aware Memory Cards: Counterfactual-Inspired Context Selection and Compression for Tool-Using LLM Agents
2026-09-07 12:00Science🔥 42.2 heat score
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The researchers proposed a method called “Decision-Sensing Memory Cards” aimed at addressing the issue where large language model agents rely solely on long contexts and lack relevant decision-making evidence. This method uses counterfactual heuristics to construct an instance context graph, sorts candidates based on the expected utility of their next actions rather than semantic similarity, and compresses selected evidence into typed memory cards. Experiments were conducted on 50 SWE-bench Verified document retrieval instances, and results showed that using the Qwen3.6-Plus model along with this method to re-rank the top 50 candidates for BM25 improved the hit@1 metric from 0.58 to 0.78, and MRR@10 from 0.634 to 0.790. This solution supports托管 LLM judges, local agents, or lightweight rankers, achieving auditable cross-model interoperability. Controlled diagnostic tests demonstrated that this method can effectively identify key evidence for action.