feat(plugins): @own-created contentAccess marker for plugin-created tables

docs/features/content-storage.md

@@ -36,6 +36,7 @@ The schema for a collection. One row per collection.
 | `primary_field_id`| text      | Field id used as the row's display name in grids / pickers      |
 | `fields_json`     | jsonb     | `DataField[]` — the schema                                       |
 | `system`          | boolean   | `true` for seeded tables (`posts`, `pages`, `components`, `layouts`) |
+| `created_by_plugin_id` | text | Plugin that created the table via `cms.content.tables.create`; null for user/import-created tables. The plugin host's `@own-created` contentAccess marker resolves against it. |
 | `created_*`, `updated_*` | -  | Standard audit fields                                            |
 
 ### `data_rows`

docs/features/plugin-system.md

@@ -682,14 +682,17 @@ Plugins read and write CMS content (pages, posts, custom tables) through `api.cm
 | `cms.content.delete`          | High      | Soft-delete entries                                                          |
 | `cms.content.tables.manage`   | Dangerous | Create user-managed tables (never system tables)                            |
 
-The manifest's `contentAccess[]` lists every table whose entries the plugin can touch, with per-table modes. The host fails closed without both the permission and the allowlist entry for entry reads/writes/publishes/deletes. `content.tables.create(...)` is different: it requires `cms.content.tables.manage`, creates a new user-managed table, and does not require a pre-existing `contentAccess[]` row for that table.
+The manifest's `contentAccess[]` lists every table whose entries the plugin can touch, with per-table modes. The host fails closed without both the permission and a covering allowlist entry for entry reads/writes/publishes/deletes. `content.tables.create(...)` is different: it requires `cms.content.tables.manage`, creates a new user-managed table, and does not require a pre-existing `contentAccess[]` row for that table.
+
+An entry's `table` is a concrete slug, or the **`@own-created` marker** (`OWN_CREATED_TABLES_MARKER` in the SDK): it covers every table this plugin itself created through `content.tables.create(...)`. The create handler stamps the host-authenticated plugin id on the table row (`data_tables.created_by_plugin_id`), and the marker resolves against that stored creator — never against the slug — so it is durable across restarts and admin-side slug renames, and one plugin's marker never reaches another plugin's (or a user's) tables. This is the shape importer/migration plugins need: their table names are chosen by the operator at runtime and can't be pre-declared. Entries combine as a union — an operation is allowed when any matching entry declares the mode — and marker modes go through the same install-time modes↔permissions coherence check as slug entries.
 
 ```jsonc
 {
-  "permissions": ["cms.content.read", "cms.content.write"],
+  "permissions": ["cms.content.read", "cms.content.write", "cms.content.tables.manage"],
   "contentAccess": [
     { "table": "pages", "modes": ["read", "write"] },
-    { "table": "posts", "modes": ["read"] }
+    { "table": "posts", "modes": ["read"] },
+    { "table": "@own-created", "modes": ["read", "write"] }
   ]
 }
 ```
@@ -744,7 +747,7 @@ const snap = await api.cms.content.getPublishedSnapshot(entryId)
 const { count } = await api.cms.content.republishAll()
 ```
 
-`tables.create(input)` accepts the plugin-facing field projection, then maps it to the host's canonical `DataField` schema before storage. `richText` fields default to Markdown format, `select` / `multiSelect` option `value`s become stable option IDs, and `relation.targetTableSlug` must resolve to an existing table slug. `repeater` accepts a one-level `fields` schema made from ordinary authorable fields; nested relation slugs are resolved through the same gate, while recursive repeaters, `pageTree`, and `fieldSchema` item fields are rejected by the boundary schema.
+`tables.create(input)` accepts the plugin-facing field projection, then maps it to the host's canonical `DataField` schema before storage. The created table records the calling plugin as `createdByPluginId`, which the `@own-created` contentAccess marker resolves against for all subsequent entry access; the table slug is restricted to kebab-case (leading letter), reserving the `@` namespace for markers. `richText` fields default to Markdown format, `select` / `multiSelect` option `value`s become stable option IDs, and `relation.targetTableSlug` must resolve to an existing table slug. `repeater` accepts a one-level `fields` schema made from ordinary authorable fields; nested relation slugs are resolved through the same gate, while recursive repeaters, `pageTree`, and `fieldSchema` item fields are rejected by the boundary schema.
 
 `republishAll` fires the full publish pipeline (`publish.before` → `publish.html` → `publish.after`), so other plugins' filters and listeners participate.
 

docs/reference/architecture-tests.md

@@ -148,7 +148,7 @@ See [docs/features/spotlight.md](../features/spotlight.md).
 | `plugin-sandbox-invariants.test.ts`           | No `node:`, `bun:`, `require(`, `process.binding` in plugin bundles; network permission gate is centralized in `apiDispatch.ts` and driven by `TARGET_PERMISSIONS`. |
 | `plugin-boot-resilience.test.ts`              | One bad plugin doesn't bring the server down. Crashes are isolated.              |
 | `plugin-cms-content-surface.test.ts`          | All five `cms.content.*` permissions are wired across all sync-points (permission values, capability matrix, permission alias builder, SDK type surface, host-side dispatch). |
-| `plugin-content-access-enforced.test.ts`      | `cms.content.*` permission grant is enforced centrally in `apiDispatch.ts` (driven by `TARGET_PERMISSIONS`); per-table handlers additionally call `assertContentTableAccess` (manifest `contentAccess[]` allowlist). |
+| `plugin-content-access-enforced.test.ts`      | `cms.content.*` permission grant is enforced centrally in `apiDispatch.ts` (driven by `TARGET_PERMISSIONS`); per-table handlers additionally call `assertContentTableAccess` (manifest `contentAccess[]` allowlist — slug entries + the `@own-created` marker); `tables.create` records `createdByPluginId`, which the marker resolves against. |
 | `plugin-content-tree-via-engine.test.ts`      | Plugin content handlers reach page-tree mutations through `applyTreeOperation` from `@core/page-tree`, not by deep-importing `mutations.ts` directly. |
 | `plugin-host-import-boundaries.test.ts`       | Worker transport (`server/plugins/host/`) does not import `apiDispatch` — prevents circular dependency between the pool and the dispatch layer. |
 | `plugin-host-ui-runtime-parity.test.ts`       | Plugin host UI surfaces match the SDK's declared shape.                          |

server/db/migrations-pg.ts

@@ -1156,4 +1156,15 @@ export const pgMigrations: Migration[] = [
        where trim(lower(display_name)) = trim(lower(email));
     `,
   },
+  {
+    // Which plugin created this table via `cms.content.tables.create` (null
+    // for user/import-created tables). The plugin host's `@own-created`
+    // contentAccess marker resolves against this column, so a plugin keeps
+    // access to tables it created at runtime — durable across restarts and
+    // admin-side slug renames. Nullable, no default: purely additive.
+    id: '025_data_tables_created_by_plugin',
+    sql: `
+      alter table data_tables add column created_by_plugin_id text;
+    `,
+  },
 ]

server/db/migrations-sqlite.ts

@@ -1224,4 +1224,15 @@ export const sqliteMigrations: Migration[] = [
        where trim(lower(display_name)) = trim(lower(email));
     `,
   },
+  {
+    // Which plugin created this table via `cms.content.tables.create` (null
+    // for user/import-created tables). The plugin host's `@own-created`
+    // contentAccess marker resolves against this column, so a plugin keeps
+    // access to tables it created at runtime — durable across restarts and
+    // admin-side slug renames. Nullable, no default: purely additive.
+    id: '025_data_tables_created_by_plugin',
+    sql: `
+      alter table data_tables add column created_by_plugin_id text;
+    `,
+  },
 ]

server/handlers/cms/import.ts

@@ -216,7 +216,10 @@ export async function handleImportRoute(
           })
           tablesAffected++
         } else if (!SYSTEM_TABLE_IDS.has(table.id)) {
-          // Custom table — insert with original id
+          // Custom table — insert with original id. `createdByPluginId` is
+          // access-control state (the `@own-created` contentAccess marker
+          // resolves against it), so a restore keeps plugin-created tables
+          // owned by their plugin.
           await createDataTable(tx, {
             id: table.id,
             name: table.name,
@@ -227,6 +230,7 @@ export async function handleImportRoute(
             pluralLabel: table.pluralLabel,
             primaryFieldId: table.primaryFieldId,
             fields: table.fields,
+            createdByPluginId: table.createdByPluginId ?? null,
           })
           tablesAffected++
         }
@@ -293,6 +297,7 @@ export async function handleImportRoute(
           pluralLabel: table.pluralLabel,
           primaryFieldId: table.primaryFieldId,
           fields: table.fields,
+          createdByPluginId: table.createdByPluginId ?? null,
         })
         if (inserted) tablesAffected++
       }
@@ -343,6 +348,7 @@ export async function handleImportRoute(
           pluralLabel: table.pluralLabel,
           primaryFieldId: table.primaryFieldId,
           fields: table.fields,
+          createdByPluginId: table.createdByPluginId ?? null,
         })
         if (!inserted) {
           await updateDataTable(tx, table.id, {

server/plugins/host/handlers/content.test.ts

@@ -0,0 +1,207 @@
+/**
+ * End-to-end host-side coverage for the `@own-created` content-access flow:
+ * a plugin creates a table through `cms.content.tables.create` (which records
+ * `created_by_plugin_id`), then reaches its entries through the ordinary
+ * `cms.content.entries.*` handlers via the `@own-created` marker — while
+ * every other plugin stays locked out of that table.
+ *
+ * Handlers reply through `replyApiOk`, which silently drops when no worker
+ * is registered for the plugin id — so success is asserted via repository
+ * reads and denial via the thrown access error (exactly what the dispatcher
+ * turns into an error reply in production).
+ */
+import { describe, expect, it, beforeEach } from 'bun:test'
+import { createSqliteClient } from '../../../db/sqlite'
+import { sqliteMigrations } from '../../../db/migrations-sqlite'
+import { runMigrations } from '../../../db/runMigrations'
+import type { DbClient } from '../../../db/client'
+import { getDataTableBySlug, getDataRowBySlug } from '../../../repositories/data'
+import type { DataTable } from '@core/data/schemas'
+import { parsePluginManifest } from '@core/plugins/manifest'
+import { OWN_CREATED_TABLES_MARKER, type ContentAccessEntry } from '@core/plugin-sdk'
+import { assertContentTableAccess } from '../registry'
+import type { HostPluginRecord } from '../types'
+import {
+  handleContentEntriesCreate,
+  handleContentEntriesList,
+  handleContentTablesCreate,
+  handleContentTablesGet,
+} from './content'
+
+async function freshDb(): Promise<DbClient> {
+  const db = createSqliteClient(':memory:')
+  await runMigrations(db, sqliteMigrations)
+  return db
+}
+
+function pluginRecord(id: string, contentAccess: ContentAccessEntry[]): HostPluginRecord {
+  const manifest = parsePluginManifest({
+    id,
+    name: 'Importer fixture',
+    version: '1.0.0',
+    apiVersion: 1,
+    description: 'own-created table access fixture',
+    permissions: ['cms.content.read', 'cms.content.write', 'cms.content.tables.manage'],
+    contentAccess,
+  })
+  return {
+    manifest,
+    routes: new Map(),
+    hookListeners: [],
+    hookFilters: [],
+    loopSources: [],
+    mediaAdapters: [],
+    mediaUrlTransformers: [],
+    inflightFetches: new Map(),
+  }
+}
+
+const IMPORTER = 'acme.importer'
+
+async function mustGetTable(db: DbClient, slug: string): Promise<DataTable> {
+  const table = await getDataTableBySlug(db, slug)
+  if (!table) throw new Error(`fixture table "${slug}" missing`)
+  return table
+}
+
+/** Create `imported-products` as the importer plugin via the real handler. */
+async function createImportedProductsTable(db: DbClient, entry: HostPluginRecord): Promise<void> {
+  await handleContentTablesCreate(
+    {
+      kind: 'api-call',
+      correlationId: 'c-create-table',
+      pluginId: IMPORTER,
+      target: 'cms.content.tables.create',
+      args: [{
+        slug: 'imported-products',
+        name: 'Imported Products',
+        singularLabel: 'Imported product',
+        pluralLabel: 'Imported products',
+        fields: [
+          { id: 'title', label: 'Title', type: 'text', required: true },
+          { id: 'slug', label: 'Slug', type: 'text', required: false },
+        ],
+      }],
+    },
+    entry,
+    db,
+  )
+}
+
+describe('cms.content.tables.create → @own-created access', () => {
+  let db: DbClient
+  const importer = pluginRecord(IMPORTER, [
+    { table: OWN_CREATED_TABLES_MARKER, modes: ['read', 'write'] },
+  ])
+
+  beforeEach(async () => {
+    db = await freshDb()
+    await createImportedProductsTable(db, importer)
+  })
+
+  it('records the creating plugin on the table row', async () => {
+    const created = await mustGetTable(db, 'imported-products')
+    expect(created.createdByPluginId).toBe(IMPORTER)
+    expect(created.system).toBe(false)
+  })
+
+  it('lets the creator write and read entries via the marker', async () => {
+    await handleContentEntriesCreate(
+      {
+        kind: 'api-call',
+        correlationId: 'c-create-entry',
+        pluginId: IMPORTER,
+        target: 'cms.content.entries.create',
+        args: ['imported-products', { slug: 'widget-1', cells: { title: 'Widget', slug: 'widget-1' } }],
+      },
+      importer,
+      db,
+    )
+    const table = await mustGetTable(db, 'imported-products')
+    const row = await getDataRowBySlug(db, table.id, 'widget-1')
+    expect(row?.cells.title).toBe('Widget')
+
+    // Reads ride the same marker — the list handler resolves + asserts.
+    await expect(handleContentEntriesList(
+      {
+        kind: 'api-call',
+        correlationId: 'c-list',
+        pluginId: IMPORTER,
+        target: 'cms.content.entries.list',
+        args: ['imported-products', {}],
+      },
+      importer,
+      db,
+    )).resolves.toBeUndefined()
+
+    await expect(handleContentTablesGet(
+      {
+        kind: 'api-call',
+        correlationId: 'c-get-table',
+        pluginId: IMPORTER,
+        target: 'cms.content.tables.get',
+        args: ['imported-products'],
+      },
+      importer,
+      db,
+    )).resolves.toBeUndefined()
+  })
+
+  it('denies a different plugin carrying the same marker', async () => {
+    const other = pluginRecord('rival.importer', [
+      { table: OWN_CREATED_TABLES_MARKER, modes: ['read', 'write'] },
+    ])
+    await expect(handleContentEntriesCreate(
+      {
+        kind: 'api-call',
+        correlationId: 'c-rival',
+        pluginId: 'rival.importer',
+        target: 'cms.content.entries.create',
+        args: ['imported-products', { cells: { title: 'Hijack' } }],
+      },
+      other,
+      db,
+    )).rejects.toThrow('does not have contentAccess declared for table "imported-products"')
+  })
+
+  it('denies a plugin without the marker even for tables it could name', async () => {
+    // Declares the slug of ANOTHER plugin's created table statically — the
+    // slug entry matches, so this is allowed: static declarations are the
+    // operator-reviewed path for cross-plugin table access.
+    const staticDeclarer = pluginRecord('acme.reader', [
+      { table: 'imported-products', modes: ['read'] },
+    ])
+    await expect(handleContentEntriesList(
+      {
+        kind: 'api-call',
+        correlationId: 'c-static-read',
+        pluginId: 'acme.reader',
+        target: 'cms.content.entries.list',
+        args: ['imported-products', {}],
+      },
+      staticDeclarer,
+      db,
+    )).resolves.toBeUndefined()
+
+    // But its declared modes still bind: write was not declared.
+    await expect(handleContentEntriesCreate(
+      {
+        kind: 'api-call',
+        correlationId: 'c-static-write',
+        pluginId: 'acme.reader',
+        target: 'cms.content.entries.create',
+        args: ['imported-products', { cells: { title: 'Nope' } }],
+      },
+      staticDeclarer,
+      db,
+    )).rejects.toThrow('not for mode "write"')
+  })
+
+  it('still denies the creator a mode its marker entry does not declare', async () => {
+    // The importer declared read+write only — delete-capable handlers assert
+    // mode 'delete' and must fail even for own-created tables.
+    const table = await mustGetTable(db, 'imported-products')
+    expect(() => assertContentTableAccess(importer, table, 'delete'))
+      .toThrow('not for mode "delete"')
+  })
+})