SmartSnap: Proactive Evidence Seeking for Self-Verifying Agents

Fuente: arXiv
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Main Authors: Cai, Shaofei, Qin, Yulei, Lin, Haojia, Xu, Zihan, Li, Gang, Shi, Yuchen, Li, Zongyi, Mao, Yong, Cai, Siqi, Tan, Xiaoyu, Liang, Yitao, Li, Ke, Sun, Xing
Format: Preprint
Published: 2025
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author Cai, Shaofei
Qin, Yulei
Lin, Haojia
Xu, Zihan
Li, Gang
Shi, Yuchen
Li, Zongyi
Mao, Yong
Cai, Siqi
Tan, Xiaoyu
Liang, Yitao
Li, Ke
Sun, Xing
author_facet Cai, Shaofei
Qin, Yulei
Lin, Haojia
Xu, Zihan
Li, Gang
Shi, Yuchen
Li, Zongyi
Mao, Yong
Cai, Siqi
Tan, Xiaoyu
Liang, Yitao
Li, Ke
Sun, Xing
contents Agentic reinforcement learning (RL) holds great promise for the development of autonomous agents under complex GUI tasks, but its scalability remains severely hampered by the verification of task completion. Existing task verification is treated as a passive, post-hoc process: a verifier (i.e., rule-based scoring script, reward or critic model, and LLM-as-a-Judge) analyzes the agent's entire interaction trajectory to determine if the agent succeeds. Such processing of verbose context that contains irrelevant, noisy history poses challenges to the verification protocols and therefore leads to prohibitive cost and low reliability. To overcome this bottleneck, we propose SmartSnap, a paradigm shift from this passive, post-hoc verification to proactive, in-situ self-verification by the agent itself. We introduce the Self-Verifying Agent, a new type of agent designed with dual missions: to not only complete a task but also to prove its accomplishment with curated snapshot evidences. Guided by our proposed 3C Principles (Completeness, Conciseness, and Creativity), the agent leverages its accessibility to the online environment to perform self-verification on a minimal, decisive set of snapshots. Such evidences are provided as the sole materials for a general LLM-as-a-Judge verifier to determine their validity and relevance. Experiments on mobile tasks across model families and scales demonstrate that our SmartSnap paradigm allows training LLM-driven agents in a scalable manner, bringing performance gains up to 26.08% and 16.66% respectively to 8B and 30B models. The synergizing between solution finding and evidence seeking facilitates the cultivation of efficient, self-verifying agents with competitive performance against DeepSeek V3.1 and Qwen3-235B-A22B. Code is available at: https://github.com/TencentYoutuResearch/SmartSnap
format Preprint
id arxiv_https___arxiv_org_abs_2512_22322
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SmartSnap: Proactive Evidence Seeking for Self-Verifying Agents
Cai, Shaofei
Qin, Yulei
Lin, Haojia
Xu, Zihan
Li, Gang
Shi, Yuchen
Li, Zongyi
Mao, Yong
Cai, Siqi
Tan, Xiaoyu
Liang, Yitao
Li, Ke
Sun, Xing
Computation and Language
Artificial Intelligence
Computer Vision and Pattern Recognition
Machine Learning
Multiagent Systems
Agentic reinforcement learning (RL) holds great promise for the development of autonomous agents under complex GUI tasks, but its scalability remains severely hampered by the verification of task completion. Existing task verification is treated as a passive, post-hoc process: a verifier (i.e., rule-based scoring script, reward or critic model, and LLM-as-a-Judge) analyzes the agent's entire interaction trajectory to determine if the agent succeeds. Such processing of verbose context that contains irrelevant, noisy history poses challenges to the verification protocols and therefore leads to prohibitive cost and low reliability. To overcome this bottleneck, we propose SmartSnap, a paradigm shift from this passive, post-hoc verification to proactive, in-situ self-verification by the agent itself. We introduce the Self-Verifying Agent, a new type of agent designed with dual missions: to not only complete a task but also to prove its accomplishment with curated snapshot evidences. Guided by our proposed 3C Principles (Completeness, Conciseness, and Creativity), the agent leverages its accessibility to the online environment to perform self-verification on a minimal, decisive set of snapshots. Such evidences are provided as the sole materials for a general LLM-as-a-Judge verifier to determine their validity and relevance. Experiments on mobile tasks across model families and scales demonstrate that our SmartSnap paradigm allows training LLM-driven agents in a scalable manner, bringing performance gains up to 26.08% and 16.66% respectively to 8B and 30B models. The synergizing between solution finding and evidence seeking facilitates the cultivation of efficient, self-verifying agents with competitive performance against DeepSeek V3.1 and Qwen3-235B-A22B. Code is available at: https://github.com/TencentYoutuResearch/SmartSnap
title SmartSnap: Proactive Evidence Seeking for Self-Verifying Agents
topic Computation and Language
Artificial Intelligence
Computer Vision and Pattern Recognition
Machine Learning
Multiagent Systems
url https://arxiv.org/abs/2512.22322