CodeCRDT: Observation-Driven Coordination for Multi-Agent LLM Code Generation

Sergey Pugachev

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arXiv · 2510.18893

CodeCRDT: Observation-Driven Coordination for Multi-Agent LLM Code Generation

Sergey Pugachev

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Abstract

Multi-agent LLM systems fail to realize parallel speedups due to costly coordination. We present CodeCRDT, an observation-driven coordination pattern where agents coordinate by monitoring a shared state with observable updates and deterministic convergence, rather than explicit message passing. Using Conflict-Free Replicated Data Types (CRDTs), CodeCRDT enables lock-free, conflict-free concurrent code generation with strong eventual consistency. Evaluation across 600 trials (6 tasks, 50 runs per mode) shows both benefits and trade-offs: up to 21.1% speedup on some tasks, up to 39.4% slowdown on others, and 100% convergence with zero merge failures. The study formalizes observation-driven coordination for stochastic LLM agents, revealing semantic conflict rates (5-10%) and quality-performance tradeoffs, and provides empirical characterization of when parallel coordination succeeds versus fails based on task structure.

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BibTeX RIS

Sergey Pugachev. 2025-10-18. CodeCRDT: Observation-Driven Coordination for Multi-Agent LLM Code Generation. https://arxiv.org/abs/2510.18893

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