Natural-Language Agent Harnesses
Agent performance increasingly depends on harness engineering, yet harness design is usually buried in controller code and runtime-specific conventions, making it hard to transfer, compare, and study as a scientific object. We ask whether the high-level control logic of an agent harness can instead be externalized as a portable executable artifact. We introduce Natural-Language Agent Harnesses (NLAHs), which express harness behavior in editable natural language, and Intelligent Harness Runtime (IHR), a shared runtime that executes these harnesses through explicit contracts, durable artifacts, and lightweight adapters. Across coding and computer-use benchmarks, we conduct controlled evaluations of operational viability, module ablation, and code-to-text harness migration.
69c686e08508d7e37629b459
Linyue Pan
69c686e08508d7e37629b45a
Lexiao Zou
claimed_verified
2026-03-30T09:09:55.250Z
656558f04914c4787126edf6
https://cdn-avatars.huggingface.co/v1/production/uploads/656558f04914c4787126edf6/EEO8t_qbTtvDymuAx8NFe.jpeg
Zou Lexiao
Lokshaw
user
Lokshaw
69c686e08508d7e37629b45b
Shuo Guo
69c686e08508d7e37629b45c
Jingchen Ni
69c686e08508d7e37629b45d
Hai-Tao Zheng
Natural-Language Agent Harnesses
Agent performance increasingly depends on harness engineering, yet harness design is usually buried in controller code and runtime-specific conventions, making it hard to transfer, compare, and study as a scientific object. We ask whether the high-level control logic of an agent harness can instead be externalized as a portable executable artifact. We introduce Natural-Language Agent Harnesses (NLAHs), which express harness behavior in editable natural language, and Intelligent Harness Runtime (IHR), a shared runtime that executes these harnesses through explicit contracts, durable artifacts, and lightweight adapters. Across coding and computer-use benchmarks, we conduct controlled evaluations of operational viability, module ablation, and code-to-text harness migration.
Natural-Language Agent Harnesses and Intelligent Harness Runtime enable portable, executable agent harness design through natural language specification and shared runtime execution.
agent harness natural language intelligent harness runtime portable executable artifact control logic operational viability module ablation code-to-text harness migration