Notableagents robotics

AdvSim2Real : Training Web Agents Against Adaptive Prompt Injection in a Web World Model

Sarim Hashmi, Mukul Ranjan, Kshitij Mishra, Mikhail Kuznetsov, Praneeth Vepakomma, Nils Lukas

Published
Oct 6, 2026 — 17:56 UTC

{'Problem': 'The paper addresses the gap in agent robustness against adaptive prompt injection in web environments. This issue is critical as traditional agents often fail to generalize in the presence of adversarial prompts, which can significantly degrade their performance. The work is presented as a preprint and has not undergone peer review.', 'Method': "The authors propose a framework utilizing a frozen web world model as the architecture. The core of their method involves the co-evolution of a task curriculum, an injection adversary, and the agent itself. The loss function is designed such that the curriculum is rewarded for tasks solved approximately 50% of the time, while the adversary receives rewards based on successful flips of the agent's responses. The training data consists of 150 web tasks, although the specific training compute resources utilized are not disclosed.", 'Results': 'The proposed method achieves a 33.6% increase in completion rate when evaluated against an unseen adversary compared to the base agent, demonstrating significant improvements in robustness under adversarial conditions.', 'Limitations': 'The authors do not report any limitations in their work, and no obvious limitations are identified in the available text.', 'Why it matters': 'This research has implications for the development of more resilient AI agents capable of operating in dynamic and adversarial web environments, paving the way for improved performance in real-world applications where prompt injection attacks are a concern.'}

Summarised from the paper by the Turing Wire Research Desk. The full paper has the complete methods and results.

Source: arXiv cs.AI