As coding agents are increasingly deployed in large codebases, the need to automatically design challenging, codebase-level evaluation is central. We propose Gistify, a task where a coding LLM must create a single, minimal, self-contained file that can reproduce a specific functionality of a codebase. The coding LLM is given full access to a codebase along with a specific entrypoint (e.g., a python command), and the generated file must replicate the output of the same command ran under the full codebase, while containing only the essential components necessary to execute the provided command. Success on Gistify requires both structural understanding of the codebase, accurate modeling of its execution flow as well as the ability to produce potentially large code patches. Our findings show that current state-of-the-art models struggle to reliably solve Gistify tasks, especially ones with long executions traces.
Gistify! Codebase-Level Understanding via Runtime Execution
Hyunji Lee,Minseon Kim,Chinmay Singh,Matheus Pereira,Atharv Sonwane,Isadora White,Elias Stengel-Eskin,Mohit Bansal,Zhengyan Shi,Alessandro Sordoni,Marc-Alexandre Cot'e,Xingdi Yuan,Lucas Caccia
Published 2025 in arXiv.org
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2025
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arXiv.org
- Publication date
2025-10-30
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Computer Science
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