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@deepseek-ai/dsh-tool-pwsh-persistent

English | 中文

模型侧 pwsh(command),由一个 owner 作用域的 ctx.terminals shell 支撑。本包拥有工具契约与 shell 复用;部署方选择 terminal backend(配置 shellDialect: pwshterminal-bash 实例)与沙箱策略。它是 tool-bash-persistent 的 Windows 对应物:相同的持久状态契约,PowerShell 方言。

配置

默认值 含义
backendType shell 每个 Agent shell 使用的已注册 terminal backend。
timeoutMs 300000 单条命令的墙钟上限;超时关闭 shell。
maxOutputChars 16000 保留的命令输出字符上限;固定诊断文本在其后追加。
description 持久 shell 描述 模型可见的环境契约。

模型体验

工具 schema

模型看到什么

生成的 pwsh schema,含配置的 description。本插件不贡献独立的 system-prompt 段落;persona 与环境指引由部署方负责。

Token 影响

pwsh 可见期间每个请求有固定的 schema 成本。

KV Cache 影响

配置的 description 与 schema 不变时前缀稳定。

工具结果

模型看到什么

命令共享每个 Agent 的一个 shell,因此 cwd、$env: 变量、函数和后台任务跨调用保留。结果排除私有完成标记、shell 提示符与回显的输入行(PSReadLine 会把提交的输入渲染回输出流;marker 锚定提取与包装器原文剥离将其移除)。非零包装命令追加 [exit code: N] —— 命令运行原生程序时是精确的原生退出码,PowerShell 终止性错误为 1。shell 在报告状态前退出的,改为追加 [shell exited: code N][shell killed by signal: SIG][shell exited]backend 两者都没有时;Windows 强杀按无 signal 的 exit 1 报告),然后重置并告知模型下一次调用从全新 shell 开始。长输出保留最早的前缀并附裁剪提示;若 PTY 已丢弃该前缀,结果会明确说明。超时返回有界的部分输出、关闭不确定的 shell 并报告重置。

Token 影响

数据相关。maxOutputChars 限制保留的命令输出;固定裁剪、前缀丢失、状态、超时与重置诊断可能扩展结果。

KV Cache 影响

追加式工具结果跟随可复用的请求前缀。

已知限制与延后工作

  • 工具需要拥有 Agent 与一个真实支持 pwsh 方言的 terminal backendWindows ConPTY 或 POSIX 上的 pwsh)。
  • 输入回显不可避免PowerShell 的 PSReadLine 会把提交的输入渲染回终端流,且没有 stty -echo 的对应物。完整结果中 marker 锚定提取排除回显;包装器原文剥离覆盖回退路径,但跨越终端宽度的包装器折行可能在部分输出结果中残留片段回显,受 maxOutputChars 约束。
  • 模型命令中的裸 ESC 字符不受支持:PSReadLine 会在执行前吞掉它们。包装器转义它需要的控制字节([char]27 构造的 OSC 标记、body 的反引号转义)。
  • 模型重定义 prompt 函数会移除就绪标记;shell 随后退化为静默档而非 marker 快路径。
  • 命令执行期间没有交互 stdin:读取输入的前台命令会阻塞到就绪超时,随后重置 shell。
  • SIGTSTP/SIGHUP 在 Windows 不可用(backend 拒绝);SIGINT 以控制台级 Ctrl-C 输入写入投递,在提示符处取消当前行而非向进程发信号。
  • 在 Windows ACL 沙箱的只读模式下,pwsh 以 ConstrainedLanguage 启动,可能拒绝引导代码通过 [Console]:: 固定编码并写入 prompt marker。命令仍可通过可打印提示符和静默档结算,但非 ASCII 输出可能沿用宿主代码页。
  • BEL 终结的 OSC 标记仍只是就绪信号;面向模型的 BEL 事件通道保持延后,与当前实现对齐。