Taber v0.5.1

English

Changed

• Canonicalized model tool inputs so task targets, browser execution timeouts, and runtime-only fields remain host-owned; irrelevant placeholder fields are discarded before execution.
• Hardened Browser REPL lifecycle management with one total budget, cancellation propagation to in-flight page commands, remaining-budget caps for helpers, and explicit NO_EVIDENCE results.
• Navigation failures now return recoverable error contracts with retry guidance, while side-panel presentation distinguishes recoverable failures from task failures.

Diagnostics

• Added runtime.configured session diagnostics for non-secret provider/model metadata, reasoning effort, and tool schema version.

Documentation

• Documented canonical tool input boundaries and the limited Chrome offscreen runtime API.

中文

变更

• 规范化模型工具输入：目标标签页、浏览器执行超时和运行时字段由宿主持有，模型填入的无关占位字段会在执行前丢弃。
• 加固 Browser REPL 生命周期：统一总预算、取消传播到在途页面命令、按剩余预算限制 helper，并在没有证据时明确返回 NO_EVIDENCE。
• 导航失败改为带重试建议的可恢复错误契约；侧边栏区分可恢复工具失败与任务失败。

诊断

• 新增 runtime.configured 会话诊断事件，记录非秘密的 provider/model 元数据、推理强度和工具 Schema 版本。

文档

• 补充模型工具输入边界及 Chrome offscreen 受限 runtime API 说明。