diff --git a/docs/external-plugin-guide.md b/docs/external-plugin-guide.md
index a43efa0..6537280 100644
--- a/docs/external-plugin-guide.md
+++ b/docs/external-plugin-guide.md
@@ -25,6 +25,7 @@
 | 布局持久化 | 原生栏的布局**只在内存**（刷新后回到折叠默认），插件自己的底部工作台仍然持久化 |
 | 跨会话打开 | 目标会话的右侧栏 store 未挂载时，打开会排队到该会话上屏后重放 |
 | 内置类型接管 | 插件的 `editor` 类型以 `extension` 优先级认领 `dsh-resource://file/**`（压过内置 `ui-sidebar-documentpreview` 的 `text` 预览——即 `fallback` 带），并接管内置 `files` 页面 kind（`openTab('files')` 打开插件的文件树）；插件卸载/禁用时内置实现自动复位 |
+| path 种子的去向（v0.19.2+） | `path` seed 的含义**跟随类型**：只有 `editor`（唯一认领 `dsh-resource://file/**` 的类型）把 path 转成资源地址打开（文件落在编辑器）；**其余类型保留页面型打开**，path 随导航 params 落到合成记录的 `tab.path` 供组件消费——组件型 tab 的 path seed 不会被改道到文件编辑器（v0.19.0/0.19.1 上一切 path seed 都被改道，组件从未挂载，#632） |
 | 终端上限 | 终端 tab 的数量上限只统计插件自己底部工作台里的终端；原生栏里的终端不计入 |
 | 底部工作台的开合 | 落到底部工作台的打开一律展开它（新建与聚焦都算），因此 `openTab` 的落点永远可见；开合按钮注册在 DSH 会话头的 utilities 槽（`conversation.session.header.utilities`），不在插件自己的宿主里 |
 | 新建标签页列表 | 每个 tab 类型在原生 guide 里占一行：标题取 `title` + 图标取 `icon`（缺图标时宿主补一个方块占位），说明取可选的 `description`——**宿主只在 guide 列出的条目 ≤ 4 条时渲染说明**（上游 `MAX_DESCRIBED_ENTRIES = 4`），更长的列表整列丢掉所有说明；未声明 `description` 的条目渲染成单行「图标 + 标题」（rc.1 起 `description` 回到宿主契约，但**宿主与插件都没有兜底句**，所以插件恢复字段而不恢复旧的通用句）；`hidden: true` 的类型不占行。插件的 `editor` 类型不再单独占行（它认领的文件资源由 `files` 接管页承载同一视图）。**注意默认组合看不到说明**：插件贡献 6 个 guide 条目（文件 / 文件变动 / 任务管理 / 侧边对话 / 终端 / 浏览器），已超过 4 条上限——要让说明出现，需在插件设置页关掉足够多的 tab 类型把 guide 压到 ≤ 4 条 |
@@ -619,7 +620,15 @@ interface BetterSidebarService {
   /**
    * 打开一个 tab（+ 菜单和外部触发都用它；走 descriptor.dedupeKey 去重）。
    * title 可选：给出时优先于 descriptor.title（editor 显示文件名）；
-   * 有 createTab 的 descriptor（terminal）会忽略 title/path/id。
+   * 有 createTab 的 descriptor 分落点：底部工作台（target: 'bottom'）由 createTab
+   * 整体铸造 tab，忽略 seed 的 title/path/id（url 种子仍预填新建 tab 的 path）；
+   * 原生右侧栏只忽略 id（原生 tab id 由宿主铸造，seed.id 仅影响 onOpen 收到的
+   * 合成 tab），createTab 铸造的 title/meta 作缺省、seed 字段优先（v0.19.2+ 起
+   * path 也随导航 params 下发，见下）。
+   * path 可选：含义跟随类型——editor（唯一认领 dsh-resource://file/** 的
+   * 类型）把 path 转成资源地址打开（文件落在编辑器）；其余类型 path 是
+   * 组件种子，随导航 params 落到 tab.path（v0.19.2+；0.19.0/0.19.1 把一切
+   * path seed 都改道文件资源打开，组件型 tab 的组件不会挂载，#632）。
    * url 可选：把**新建** tab 的 path 预填为 URL（侧边栏浏览器导航种子）；
    * 聚焦既有 tab 时 url 不会覆写其 path。
    * 被设置禁用的类型是 no-op（console.warn 提示）。注意：available 不拦截 openTab。
@@ -666,6 +675,7 @@ interface BetterSidebarService {
 interface OpenTabSeed {
   type: string
   title?: string
+  /** 文件路径：editor = 打开文件资源；其余类型 = 组件种子（落在 tab.path，v0.19.2+） */
   path?: string
   diff?: SidebarTab['diff']
   id?: string
diff --git a/src/client/service.ts b/src/client/service.ts
index e37402d..84dd909 100644
--- a/src/client/service.ts
+++ b/src/client/service.ts
@@ -396,7 +396,13 @@ export interface OpenTabSeed {
   type: string
   /** Overrides the descriptor's title when given (the editor tab shows the file name). */
   title?: string
-  /** A file path (the editor tab's content seed). */
+  /**
+   * A file path. Meaning follows the type: the `editor` kind (the only one
+   * claiming `dsh-resource://file/**`) opens its path seeds as file
+   * resources; every other kind treats the path as component state — it
+   * rides the navigation params onto the tab record's `path` (v0.19.2+; on
+   * v0.19.0/v0.19.1 every path seed was rerouted into a file open).
+   */
   path?: string
   /** A diff reference (the diff tab's content seed). */
   diff?: SidebarTab['diff']
@@ -422,7 +428,7 @@ export interface OpenTabSeed {
 export interface NativeTabParams {
   /** Overrides the descriptor's title for this instance. */
   title?: string
-  /** A file path (the editor window's content seed). */
+  /** A file path (the editor window's content seed; component kinds carry their own). */
   path?: string
   /** A URL the tab navigates to on mount (the browser tab's seed). */
   url?: string
@@ -885,10 +891,15 @@ export function createBetterSidebarService(store: SidebarStore): BetterSidebarSe
     const callbackScope: SessionScope = scope ?? { sessionId: targetSessionId }
     // ── Native right Sidebar ──────────────────────────────────────────────
     // With the native surface installed, every open except an explicit
-    // bottom-panel one lands there: a file path becomes a resource address
-    // (the native registry routes it to the plugin's file type), a path-less
-    // editor open becomes the `files` page kind, and everything else becomes
-    // a page open carrying the seed as navigation params.
+    // bottom-panel one lands there. The path seed's meaning depends on the
+    // type: `editor` is the only kind registered with
+    // `dsh-resource://file/**` patterns (src/client/native/index.ts), so its
+    // path seeds become resource addresses (the native registry routes the
+    // address back to the editor); a path-less editor open becomes the
+    // `files` page kind. Every OTHER type keeps the page open — its path is
+    // component state, not a file to open — and rides the seed (path
+    // included) as navigation params, which the tab adapter merges onto the
+    // synthetic record's `tab.path` for the registered component.
     if (surface !== undefined && seed.target !== 'bottom') {
       const state = store.getSnapshot().state
       // The descriptor's own factory mints what a view needs beyond the seed:
@@ -911,21 +922,27 @@ export function createBetterSidebarService(store: SidebarStore): BetterSidebarSe
         ...(seed.diff === undefined ? {} : { diff: seed.diff }),
         ...(seed.meta === undefined && minted?.tab.meta === undefined ? {} : { meta: seed.meta ?? minted?.tab.meta }),
       }
-      if (seed.path !== undefined) {
-        surface.openResource({
-          sessionId: targetSessionId,
-          address: surface.fileAddress(targetSessionId, scope?.cwd, seed.path),
-          revealIfOpened: true,
-        })
-      } else if (seed.type === 'editor') {
-        // The path-less editor window IS the file explorer.
-        surface.openTab({ sessionId: targetSessionId, kind: 'files', params: {}, revealIfOpened: true })
+      if (seed.type === 'editor') {
+        if (seed.path !== undefined) {
+          surface.openResource({
+            sessionId: targetSessionId,
+            address: surface.fileAddress(targetSessionId, scope?.cwd, seed.path),
+            revealIfOpened: true,
+          })
+        } else {
+          // The path-less editor window IS the file explorer.
+          surface.openTab({ sessionId: targetSessionId, kind: 'files', params: {}, revealIfOpened: true })
+        }
       } else {
+        // A component type's path seed stays on the page open (regression
+        // #632: rerouting every path seed into openResource sent the open to
+        // the editor, so the registered component never mounted).
         surface.openTab({
           sessionId: targetSessionId,
           kind: seed.type,
           params: {
             title,
+            ...(seed.path === undefined ? {} : { path: seed.path }),
             ...(seed.url === undefined ? {} : { url: seed.url }),
             ...(seed.diff === undefined ? {} : { diff: seed.diff }),
             ...(synthetic.meta === undefined ? {} : { meta: synthetic.meta }),
diff --git a/tests/native-surface.spec.ts b/tests/native-surface.spec.ts
index 468cb51..a82f874 100644
--- a/tests/native-surface.spec.ts
+++ b/tests/native-surface.spec.ts
@@ -11,7 +11,7 @@ import { act } from 'react-dom/test-utils'
 import { createNativeTabRecords, NativeTabBody, NativeTabTitle } from '../src/client/native/tab-adapter.tsx'
 import { registerNativeSurface } from '../src/client/native/index.ts'
 import { createBetterSidebarService, type SidebarSurface } from '../src/client/service.ts'
-import { createSidebarStore } from '../src/client/state.ts'
+import { createSidebarStore, type SidebarTab } from '../src/client/state.ts'
 
 const scope = { sessionId: 's1', cwd: '/work' }
 
@@ -119,6 +119,53 @@ describe('service routing into the native surface', () => {
     expect(calls).toEqual([{ op: 'openTab', sessionId: 's1', kind: 'files', params: {}, revealIfOpened: true }])
   })
 
+  it('keeps a component type path seed on the page open (no resource reroute)', () => {
+    // Regression #632: a path seed on a component type was rerouted into
+    // openResource, so the editor (the dsh-resource://file/** claimant)
+    // received the open and the registered component never mounted.
+    const { service, calls } = mount()
+    service.registerTab({ id: 'my-plugin:doc', title: 'Doc', component: () => null })
+    service.openTab({ type: 'my-plugin:doc', path: '/work/spec.md', title: 'Spec' }, scope)
+    expect(calls).toEqual([{
+      op: 'openTab',
+      sessionId: 's1',
+      kind: 'my-plugin:doc',
+      params: { title: 'Spec', path: '/work/spec.md' },
+      revealIfOpened: true,
+    }])
+  })
+
+  it('carries the path seed and meta on a multi-instance component open', () => {
+    const { service, calls } = mount()
+    service.registerTab({
+      id: 'my-plugin:console',
+      title: 'Console',
+      createTab: (state) => ({
+        tab: { id: `console:${state.nextTerminal}`, type: 'my-plugin:console', title: 'Console' },
+        patch: { nextTerminal: state.nextTerminal + 1 },
+      }),
+      component: () => null,
+    })
+    service.openTab({ type: 'my-plugin:console', path: '/work/x.md', meta: { k: 1 } }, scope)
+    expect(calls).toEqual([{
+      op: 'openTab',
+      sessionId: 's1',
+      kind: 'my-plugin:console',
+      params: { title: 'Console', path: '/work/x.md', meta: { k: 1 } },
+      // Multi-instance kinds mint a fresh tab per open: no forced reveal.
+      revealIfOpened: false,
+    }])
+  })
+
+  it('reports a component path seed to onOpen on the synthetic tab', () => {
+    const { service } = mount()
+    const seen: Array<SidebarTab | undefined> = []
+    service.registerTab({ id: 'my-plugin:doc', title: 'Doc', onOpen: (tab) => { seen.push(tab) }, component: () => null })
+    service.openTab({ type: 'my-plugin:doc', path: '/work/spec.md' }, scope)
+    expect(seen).toHaveLength(1)
+    expect(seen[0]).toMatchObject({ type: 'my-plugin:doc', path: '/work/spec.md' })
+  })
+
   it('keeps a bottom-targeted open in the plugin layout', () => {
     const { service, calls } = mount()
     service.openTab({ type: 'terminal', target: 'bottom' }, scope)