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Bibliographic Details
Main Authors: Lin, Yi, Zhao, Lujin, Shi, Yijie
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2604.13100
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author Lin, Yi
Zhao, Lujin
Shi, Yijie
author_facet Lin, Yi
Zhao, Lujin
Shi, Yijie
contents The shift toward intent-driven software engineering (often termed "Vibe Coding") exposes a critical Context-Fidelity Trade-off: vague user intents overwhelm linear reasoning chains, leading to architectural collapse in complex repo-level generation. We propose Contract-Coding, a structured symbolic paradigm that bridges unstructured intent and executable code via Autonomous Symbolic Grounding. By projecting ambiguous intents into a formal Language Contract, our framework serves as a Single Source of Truth (SSOT) that enforces topological independence, effectively isolating inter-module implementation details, decreasing topological execution depth and unlocking Architectural Parallelism. Empirically, while state-of-the-art agents suffer from different hallucinations on the Greenfield-5 benchmark, Contract-Coding achieves 47\% functional success while maintaining near-perfect structural integrity. Our work marks a critical step towards repository-scale autonomous engineering: transitioning from strict "specification-following" to robust, intent-driven architecture synthesis. Our code is available at https://github.com/imliinyi/Contract-Coding.
format Preprint
id arxiv_https___arxiv_org_abs_2604_13100
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Contract-Coding: Towards Repo-Level Generation via Structured Symbolic Paradigm
Lin, Yi
Zhao, Lujin
Shi, Yijie
Software Engineering
Artificial Intelligence
The shift toward intent-driven software engineering (often termed "Vibe Coding") exposes a critical Context-Fidelity Trade-off: vague user intents overwhelm linear reasoning chains, leading to architectural collapse in complex repo-level generation. We propose Contract-Coding, a structured symbolic paradigm that bridges unstructured intent and executable code via Autonomous Symbolic Grounding. By projecting ambiguous intents into a formal Language Contract, our framework serves as a Single Source of Truth (SSOT) that enforces topological independence, effectively isolating inter-module implementation details, decreasing topological execution depth and unlocking Architectural Parallelism. Empirically, while state-of-the-art agents suffer from different hallucinations on the Greenfield-5 benchmark, Contract-Coding achieves 47\% functional success while maintaining near-perfect structural integrity. Our work marks a critical step towards repository-scale autonomous engineering: transitioning from strict "specification-following" to robust, intent-driven architecture synthesis. Our code is available at https://github.com/imliinyi/Contract-Coding.
title Contract-Coding: Towards Repo-Level Generation via Structured Symbolic Paradigm
topic Software Engineering
Artificial Intelligence
url https://arxiv.org/abs/2604.13100