Author

Yiran Li

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Preprint Aug 2026

ORCA: Observability-Grounded Program Repair for Microservice Incidents

Microservice failures are often diagnosed from operational telemetry. However, automated program repair systems usually start from issue reports, localized code context, or failing tests. This mismatch leaves a gap between telemetry-based diagnosis and patch generation. We present ORCA, an observability-grounded APR pi...

Yuanchen Gao, Yifang Tian, Yiran Li et al. · 0 citations

Preprint Aug 2026

When Agentic Executions Fail: Detecting and Localizing Runtime Faults from Telemetry

AGENTCHAOSBENCH is presented, a benchmark for detecting and localizing runtime faults in agentic systems from their execution telemetry, and its held-out labels and compact prediction format support reproducible comparison of LLM-based and non-LLM diagnosis methods.

Chenkai Zhang, Yiran Li, Yifang Tian et al. · 0 citations