MMG2Skill: Can Agents Distill In-the-Wild Guides into Self-Evolving Skills?

Fuente: arXiv
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Main Authors: Che, Xinyu, Xiong, Junqi, Ge, Yunfei, Lei, Xinping, Li, Shihao, Yan, Hang, Li, Han, Zhang, Yuanxing, Bai, Zhiqi, Hao, Jinhua, Sun, Ming, Liu, Jiaheng
Format: Preprint
Published: 2026
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author Che, Xinyu
Xiong, Junqi
Ge, Yunfei
Lei, Xinping
Li, Shihao
Yan, Hang
Li, Han
Zhang, Yuanxing
Bai, Zhiqi
Hao, Jinhua
Sun, Ming
Li, Han
Liu, Jiaheng
author_facet Che, Xinyu
Xiong, Junqi
Ge, Yunfei
Lei, Xinping
Li, Shihao
Yan, Hang
Li, Han
Zhang, Yuanxing
Bai, Zhiqi
Hao, Jinhua
Sun, Ming
Li, Han
Liu, Jiaheng
contents Abundant procedural knowledge on the Web holds great potential for helping agents solve long-horizon tasks. However, such knowledge is often multimodal, heterogeneous, noisy, and implicitly assumes human executors, making it difficult to use directly as the skills required by agents. To bridge the gap between human-oriented guides and agent-executable skills, we formalize this problem as guide-to-skill learning: converting in-the-wild guides into executable skills and continuously improving them from trajectories observable to the agent. To evaluate the capability of existing agents on this task, we introduce MMG2Skill-Bench, the first benchmark designed for this problem. We further propose MMG2Skill, a closed-loop framework that compiles guides into editable skills, conditions a fixed vision-language model (VLM) agent on these skills during execution, and revises the skills from trajectory-level root-cause feedback without using benchmark scores. Across GUI control, open-ended gameplay, and strategic card play with six VLM backbones, MMG2Skill consistently outperforms vanilla baseline agents in every model-domain setting, achieving macro-average gains of +12.8 to +25.3 percentage points across backbones. Ablation studies show that directly prompting agents with raw guides can degrade performance, while both structured skill construction and trajectory-driven revision are necessary for the observed improvements. On success-inferable tasks, analyzer-based early stopping further prevents late-stage performance regressions and saves 25%-53% of attempts when the success signal is properly calibrated.
format Preprint
id arxiv_https___arxiv_org_abs_2606_01993
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle MMG2Skill: Can Agents Distill In-the-Wild Guides into Self-Evolving Skills?
Che, Xinyu
Xiong, Junqi
Ge, Yunfei
Lei, Xinping
Li, Shihao
Yan, Hang
Li, Han
Zhang, Yuanxing
Bai, Zhiqi
Hao, Jinhua
Sun, Ming
Li, Han
Liu, Jiaheng
Computation and Language
Artificial Intelligence
Machine Learning
Abundant procedural knowledge on the Web holds great potential for helping agents solve long-horizon tasks. However, such knowledge is often multimodal, heterogeneous, noisy, and implicitly assumes human executors, making it difficult to use directly as the skills required by agents. To bridge the gap between human-oriented guides and agent-executable skills, we formalize this problem as guide-to-skill learning: converting in-the-wild guides into executable skills and continuously improving them from trajectories observable to the agent. To evaluate the capability of existing agents on this task, we introduce MMG2Skill-Bench, the first benchmark designed for this problem. We further propose MMG2Skill, a closed-loop framework that compiles guides into editable skills, conditions a fixed vision-language model (VLM) agent on these skills during execution, and revises the skills from trajectory-level root-cause feedback without using benchmark scores. Across GUI control, open-ended gameplay, and strategic card play with six VLM backbones, MMG2Skill consistently outperforms vanilla baseline agents in every model-domain setting, achieving macro-average gains of +12.8 to +25.3 percentage points across backbones. Ablation studies show that directly prompting agents with raw guides can degrade performance, while both structured skill construction and trajectory-driven revision are necessary for the observed improvements. On success-inferable tasks, analyzer-based early stopping further prevents late-stage performance regressions and saves 25%-53% of attempts when the success signal is properly calibrated.
title MMG2Skill: Can Agents Distill In-the-Wild Guides into Self-Evolving Skills?
topic Computation and Language
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2606.01993