Beyond Textual Repository Exploration: Dual-Modal Structural Reasoning for Agentic Issue Resolution

• URL: http://arxiv.org/abs/2607.01929v1
• Date: Thu, 02 Jul 2026 09:23:48 GMT
• Title: Beyond Textual Repository Exploration: Dual-Modal Structural Reasoning for Agentic Issue Resolution
• Abstract summary: CouplingVIEW brings visual reasoning into repository exploration for issue-resolution agents.<n>VIEW consistently improves issue-resolution performance across different agent architectures and model families.
• Score: 24.103118645295655
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advances in agentic program repair have significantly improved issue resolution by enabling iterative repository exploration. However, existing approaches predominantly rely on sequential, text-based code navigation, which fundamentally limits their ability to reason over large-scale long-horizon repositories with complex and long-range dependencies. As issue-resolution agents traverse repositories through fragmented textual observations, structural information such as module organization, call relationships, and dependency chains must be repeatedly reconstructed across interaction steps, often leading to exploration drift and incomplete localization. We present DUALVIEW, a dual-modal structural scaffolding framework that brings visual reasoning into repository exploration for issue-resolution agents. DUALVIEW represents repository structure through four complementary graph views: Module Coupling Graph (MCG), Function Call Graph (FCG), Class Hierarchy Graph (CHG), and Program Dependence Graph (PDG), and exposes them through a queryable interface with visual and textual responses. Rather than reconstructing repository structure from a sequence of textual observations, agents can directly reason over persistent visual representations of code dependencies, enabling more effective exploration and understanding of long-horizon codebases. We evaluate DUALVIEW on SWE-bench Pro and Verified. Results show that DUALVIEW consistently improves issue-resolution performance across different agent architectures and model families. Further ablation studies demonstrate that the gains arise not only from textual structural information but also from visual externalization of repository dependencies, which better supports long-horizon repository exploration.

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