Remember Your Trace: Memory-Guided Long-Horizon Agentic Framework for Consistent and Hierarchical Repository-Level Code Documentation
MemDocAgent tackles a real pain point in AI-assisted software engineering: repository-scale code documentation that maintains consistency and hierarchy. Rather than treating each file in isolation, the framework uses dependency-aware traversal and persistent memory to generate docs within a unified context, reducing redundancy and conflicting descriptions across large codebases. This matters because coding agents and developers both struggle with fragmented documentation in complex repos, and a working solution here could reshape how LLMs handle long-horizon tasks requiring global state awareness and structured output.
Modelwire context
ExplainerThe paper's core contribution is dependency-aware traversal with persistent memory across a codebase, not just better prompting. This means the agent builds a unified context model that tracks which files depend on which, avoiding the redundancy and contradiction that plague naive file-by-file documentation generation.
This directly parallels the test refactoring work from May 14 (Mining Subscenario Refactoring) in one key way: both treat large codebases as structured graphs rather than flat collections. Where that paper identified duplicate patterns across test suites to guide consolidation, MemDocAgent uses dependency graphs to guide consistent documentation. Both recognize that scale in software engineering requires structural awareness, not just statistical pattern matching. The EndPrompt paper from the same day also touches on this indirectly (long-context scaling), but MemDocAgent solves a different problem: not fitting more tokens into context, but organizing what's already there so agents can reason hierarchically.
If MemDocAgent's output maintains consistency when tested on real multi-package monorepos (e.g., Kubernetes or TensorFlow), where cross-package dependencies are dense and documentation conflicts are common, that confirms the memory mechanism actually prevents contradiction. If the generated docs require heavy manual editing at the package boundary level, the hierarchy claim is overstated.
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MentionsMemDocAgent · RepoMemory
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