Yeqiao Fu
Student, University of Hong Kong
u3597466@connect.hku.hk
Automated Oncall Assistant for SRE Teams
Agent Systems Intern – primary prototype developer, Volcano Engine Ark Group
Time. Summer 2025
Affiliation. ByteDance Volcengine Ark Group – SRE Intelligence
Role. Primary prototype developer & system architect
Tagline. LLM-powered oncall copilot that fuses triggers, observability context, RAG, and human feedback loops.
Summary. Built a production-facing prototype that ingests noisy incident streams, augments them with dashboards and SOPs, and replies to engineers with context-aware guidance.
Highlights.
- Designed ingestion and governance pipelines that clean alerts, deduplicate signals, and mine 1K+ historical incidents to auto-surface relevant Grafana dashboards and visuals.
- Implemented multi-layer triggers with severity-aware “politeness windows” so the agent only intervenes when helpful, avoiding alert fatigue.
- Built a Viking-based two-tier RAG stack (hot SOP snippets + cold KB) plus ToS-compliant screenshot handling to attach visual context safely.
- Added Lark-card feedback for Answer Adoption, Time-to-Helpful, and qualitative labels, enabling human-in-the-loop evaluation and future fine-tuning.
- Managed storage migration and capacity scaling during live pilots with SRE teams.
Keywords. LLM agents, SRE, oncall, RAG, observability, human-in-the-loop, production systems.
Links. Internal production prototype (no public repository).