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pi-gateway-plugin-dev

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为 pi-gateway 开发 Gateway 插件的实战技能。当需求涉及通过 pi SDK/RPC 扩展网关能力(如模型列表、模型切换、WS 方法、命令、Hook、后台服务)且要求“每个插件独立目录 + plugin.json + src 多文件结构”时使用。

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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/development/pi-gateway-plugin-dev/SKILL.md

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Pi Gateway Plugin Dev 技能

用于在 gateway 模式 开发插件,不是 pi extension。

适用边界

  • 目标是扩展 pi-gateway 的连接层能力(消息通道、HTTP/WS、命令、服务)
  • 插件加载位置是 ~/.pi/gateway/plugins/ 或 plugins.dirs[] 指定目录
  • 插件必须有 plugin.json,并通过 main 指向入口文件

以下场景不要用本技能:

  • 修改 Agent 思维、提示词、工具执行行为(那是 ~/.pi/agent/extensions 的职责)
  • 仅在 CLI/TUI 中运行、不经过 gateway 的功能

强制规范

  1. 每个插件一个独立目录(<plugins-root>/<plugin-id>/)。
  2. 禁止单文件模式:不能只放一个 index.ts 就结束。
  3. 入口文件只做组装,不写核心业务逻辑。
  4. 业务按职责拆分到 src/commands.ts、src/rpc-methods.ts、src/hooks.ts、src/services.ts、src/types.ts。
  5. 插件只在 gateway 插件机制里加载,不放到 ~/.pi/agent/extensions/。

标准目录

<plugins-root>/<plugin-id>/
  plugin.json
  src/
    index.ts
    types.ts
    commands.ts
    rpc-methods.ts
    hooks.ts
    services.ts

工作流

  1. 先判定是 Gateway 插件需求(不是 pi extension)。
  2. 阅读目录规范:references/plugin-directory-architecture.md
  3. 阅读 SDK 接口:references/sdk-capabilities.md
  4. 阅读 RPC 能力映射:references/rpc-capabilities.md
  5. 如涉及模型能力,读取:references/model-control-pattern.md
  6. 用脚手架生成插件目录,再填业务逻辑。
  7. 在 pi-gateway.json 里配置 plugins.dirs[] 并启动验证。

脚手架命令

bash skills/pi-gateway-plugin-dev/scripts/new-plugin.sh ~/.pi/gateway/plugins model-control "Model Control"

生成后会得到完整多文件插件目录,不会退化为单 index.ts。

模型能力实现策略

  • 切模型:用 GatewayPluginApi.setModel(sessionKey, provider, modelId)。
  • 调思考强度:用 GatewayPluginApi.setThinkingLevel(sessionKey, level)。
  • 列模型:当前 GatewayPluginApi 不直接暴露 getAvailableModels,推荐复用网关内置 models.list / /api/models。
  • 若必须插件内部直连 RPC:先扩展 GatewayPluginApi + createPluginApi + RpcClient 映射,见 references/rpc-capabilities.md 的“扩展路径”。

交付要求

  • 输出插件目录树
  • 输出 plugin.json 和关键源文件
  • 说明如何在 gateway 模式加载(plugins.dirs[])
  • 给出最小验证命令(至少覆盖“列模型/切模型”或对应能力)