用动态信号轨让终端对话代理状态可视可读
The Signal Rail: A Deterministic Motion Grammar for Communicating Conversational Agent State in Terminal Interfaces
- 设计单行动态信号轨，用位置和运动传递状态
- 45节规范确保状态变化确定且可验证
- 适合做本地语音助手交互设计的开发者
终端界面中的对话代理通常仅通过文字报告内部状态（如监听、思考、执行工具、等待输入、失败等），而其旁边的运动通道——即无需阅读即可感知的视觉区域——仅传递一个比特信息：是否活跃。本文提出信号轨（Signal Rail），一种单行终端状态指示器，赋予该通道以语义语法。其核心思想包括：空间语义（输入、处理、输出区划分，方向即含义）、运动语法（每种状态对应唯一运动规则，不依赖颜色）、确定性（帧由显式输入纯函数生成，可进行黄金帧测试）与诚实性（不虚构进度或活动）。我们贡献了一份45节的规范说明书，并在真实运行的全双工本地语音代理中实现参考版本。
原文摘要 · Abstract (English)
Terminal interfaces to conversational agents report rich internal state (listening, thinking, executing tools, awaiting input, failing) almost entirely through text, while the motion channel beside it, the one peripheral vision monitors without reading, carries a single bit: alive. We present the Signal Rail, a one-row terminal status instrument that gives that channel a grammar. Four ideas govern it: spatial semantics (input, processing, and output zones, with direction as meaning), a motion grammar (one kinetic rule per state, never color alone), determinism (frames as a pure function of explicit inputs, golden-frame testable), and honesty (no invented progress or activity). We contribute a 45-section normative specification and a reference implementation inside a working full-duplex local voice agent driven by real signals.
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