preprint · arXiv (Cornell University) · 16 Sept 2026

Cognitive Extensions for Dual-Process Language Agents: Memory and Self-Reflection in Interactive Environments

João Meneses dos Santos, Arlindo L. Oliveira · 0 citations

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Summary AI-generated

TL;DR
Language agents remain brittle in interactive environments, where success requires long-horizon state tracking, valid action execution, and recovery from failed steps.
Problem
The results suggest that execution-time control is the dominant bottleneck in this setting, while episodic memory becomes most useful once the runtime loop is stabilized.
Method
Not specified in the abstract.
Results
Across four configurations---baseline, baseline+AMM, baseline+SRM, and the full system---the full system achieves the best mean final score (64.62), success rate (43.17%), and successful-step efficiency (19.33 steps), while SRM is the strongest standalone contributor.
Contributions
Not specified in the abstract.
Limitations
Not specified in the abstract.
Takeaways
The results suggest that execution-time control is the dominant bottleneck in this setting, while episodic memory becomes most useful once the runtime loop is stabilized.
Applications
Not specified in the abstract.
Topics
arXiv (Cornell University); Cognitive Extensions; Process Language Agents
For industry
Potentially relevant to search and information retrieval.
Why it matters
Advances methods that could benefit search and information retrieval.

Abstract

Language agents remain brittle in interactive environments, where success requires long-horizon state tracking, valid action execution, and recovery from failed steps. We extend SwiftSage, a dual-process agent that combines a fast action proposer with a slower planner, using two modular cognitive extensions: an Adaptive Memory Module (AMM) for salience-gated episodic storage and trigger-driven retrieval, and a Self-Reflection Module (SRM) for bounded execution-time validation and corrective intervention. Both modules are implemented as feature-flagged extensions over the same execution substrate, enabling controlled ablations on ScienceWorld. Across four configurations---baseline, baseline+AMM, baseline+SRM, and the full system---the full system achieves the best mean final score (64.62), success rate (43.17%), and successful-step efficiency (19.33 steps), while SRM is the strongest standalone contributor. The results suggest that execution-time control is the dominant bottleneck in this setting, while episodic memory becomes most useful once the runtime loop is stabilized.

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