Repogent: An Autonomous Multi-Agent System for End-To-End Repository Maintenance

Abstract

Maintaining open-source repositories demands continuous attention to issue triage, code review, build monitoring, and community support—tasks that overwhelm individual maintainers when existing automation tools operate in isolation without shared context. Static analyzers check code quality, CI/CD systems run automated tests, and simple bots handle basic labeling, yet none of these tools share information with each other, leaving maintainers as the sole integration point between disconnected systems. We present Repogent, a multi-agent system where four specialized AI agents—Issue Manager, Pull Request Reviewer, CI/CD Maintainer, and Community Assistant—collaborate through event-driven coordination and persistent cross-task memory. Our GitHub webhook-driven architecture processes events through a priority queue, routes them to specialized agents via intelligent orchestration, and stores decisions in a persistent context layer that enables cross-task reasoning. Events are assigned CRITICAL, HIGH, or NORMAL priority, while a semantic memory module based on sentence-transformer embeddings supports code-level search, and all agents share a common LLM service using Qwen 3 32B accessed through the Groq API. Evaluation on a dataset of 150 issues, 100 pull requests, 80 CI/CD workflow executions, and 120 community queries collected from five active open-source Python repositories demonstrates that Repogent achieves 93.3% accuracy in issue classification, 69.0% combined review coverage for pull requests, 86.7% accuracy in CI/CD failure categorization with a macro F1-score of 0.884, and an average quality score of 3.96 out of 5 for community responses. These results establish a foundation for sustainable open-source maintenance through context-aware, multi-agent workflow automation. Furthermore, the proposed framework demonstrates that multi-agent orchestration with persistent shared memory can serve as an effective and scalable solution for automating repository maintenance activities, improving coordination across heterogeneous development workflows, reducing maintainer overhead, and enabling more consistent decision-making across repository events.