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Sijia Liu

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Preprint Aug 2026

HarnessRisk: A Lifecycle-Oriented Benchmark for Agent Harness Safety

HarnessRisk, a lifecycle oriented benchmark that organizes agent harness safety into six operational phases including Harness Configuration, Capability Extension, Runtime Operation, State Persistence, Action Control, and Incident Recovery, finds that explicit risk recognition does not reliably lead to safe action as so...

Ya Bai, Jinhao Duan, Jie Peng et al. · 1 citation
Preprint Aug 2026

Who Built This Model? Tracing LLM Lineage via Spectral Fingerprints in Weight Space

This work investigates the notion of LLM"biometrics" to ask whether LLMs exhibit intrinsic fingerprints in weight space alone, without access to input data, that reveal their origin and lineage, and proposes a unified geometric fingerprinting framework that analyzes weight matrices from two complementary perspectives.

Yiwei Chen, Bing-Qi Shang, Sijia Liu · 0 citations

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