collaborators

7 papers

cs.CL2026

The Bitter Lesson of Tool Calling

Ishan Patel, Sahil Sen, Elias Lumer +1

Tool use transforms LLMs into agents that act beyond their training data, and for code-capable models, programmatic tool calling extends this further by replacing rigid JSON calls…

cs.CL2026

Recursive Agent Harnesses

Elias Lumer, Sahil Sen, Kevin Paul +1

Recursive language models (RLMs) showed that recursion over model calls is an effective strategy for long-context reasoning, and production coding agents have begun to write code t…

cs.CL2026

Is Grep All You Need? How Agent Harnesses Reshape Agentic Search

Sahil Sen, Akhil Kasturi, Elias Lumer +2

Recent advances in Large Language Model (LLM) agents have enabled complex agentic workflows where models autonomously retrieve information, call tools, and reason over large corpor…

cs.CL2026

Ask Early, Ask Late, Ask Right: When Does Clarification Timing Matter for Long-Horizon Agents?

Anmol Gulati, Hariom Gupta, Elias Lumer +2

Long-horizon AI agents execute complex workflows spanning hundreds of sequential actions, yet a single wrong assumption early on can cascade into irreversible errors. When instruct…

cs.CL2026

Chronos: Temporal-Aware Conversational Agents with Structured Event Retrieval for Long-Term Memory

Sahil Sen, Elias Lumer, Anmol Gulati +1

Recent advances in Large Language Models (LLMs) have enabled conversational AI agents to engage in extended multi-turn interactions spanning weeks or months. However, existing memo…

cs.CL2026

Beyond Rows to Reasoning: Agentic Retrieval for Multimodal Spreadsheet Understanding and Editing

Anmol Gulati, Sahil Sen, Waqar Sarguroh +1

Recent advances in multimodal Retrieval-Augmented Generation (RAG) enable Large Language Models (LLMs) to analyze enterprise spreadsheet workbooks containing millions of cells, cro…