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N. J. Lia

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#artificial intelligence Preprint Sep 2026

The Backdrop Exposes What the World Around an Agent Costs It

Agent benchmarks test agents in worlds that stay still. Deployed agents work in worlds that other people also change. Someone texts the agent to send the money elsewhere or an order confirmation asks it to reply with a door code. We present BACKDROP, which asks how much of an agent's capability in a clean world survive...

Nusrat Jahan Lia, Shubhashis Roy Dipta · 0 citations
Review Aug 2026

Register Shifts Break LLM Safety: A Bengali Benchmark with Culturally Grounded Harms

Bengali is the seventh-most-spoken language globally, yet LLM safety evaluation remains overwhelmingly English-centric. We introduce BanglaSafe, a benchmark of 879 Bengali prompts combining 309 natively authored prompts with 570 expert-reviewed prompts, spanning 17 culturally grounded harm categories and five prompting...

Naymul Islam, Nusrat Jahan Lia, Shubhashis Roy Dipta et al. · 1 citation
Jul 2026

AgentCheck: A Reproduce-Intervene-Mitigate Workbench for LLM Agents over MCP

AgentCheck is presented, an open-source web workbench that turns an MCP server into an intervention surface that makes tool-using LLM failure modes reproducible, comparable, and verifiable before deployment.

Aritra Mazumder, N. J. Lia · 2 citations · ⚡1

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