diff --git a/graphql/server/src/middleware/graphile.ts b/graphql/server/src/middleware/graphile.ts
index 477e61288..21aa35e5c 100644
--- a/graphql/server/src/middleware/graphile.ts
+++ b/graphql/server/src/middleware/graphile.ts
@@ -249,6 +249,12 @@ const buildPreset = (
           context['jwt.claims.device_token'] = req.deviceToken;
         }
 
+        // Export category exclusion — set 'platform_mirror' as default so
+        // platform-integrated mirror triggers are always excluded from
+        // db_migrate.sql_actions queries via the export_category_filter RLS
+        // policy. The X-Exclude-Categories header can override if needed.
+        context['export.exclude_categories'] = req.get('X-Exclude-Categories') || 'platform_mirror';
+
         if (req.token?.user_id) {
           const pgSettings: Record<string, string> = {
             role: roleName,
diff --git a/pgpm/export/src/export-graphql.ts b/pgpm/export/src/export-graphql.ts
index 5f5853ec0..7591e1898 100644
--- a/pgpm/export/src/export-graphql.ts
+++ b/pgpm/export/src/export-graphql.ts
@@ -25,7 +25,8 @@ import {
   installMissingModules,
   makeReplacer,
   preparePackage,
-  normalizeOutdir
+  normalizeOutdir,
+  filterPlatformLeakage
 } from './export-utils';
 
 // =============================================================================
@@ -204,8 +205,9 @@ export const exportGraphQL = async ({
       await installMissingModules(dbModuleDir, dbMissingResult.missingModules);
     }
 
-    writePgpmPlan(sqlActionRows as unknown as PgpmRow[], opts);
-    writePgpmFiles(sqlActionRows as unknown as PgpmRow[], opts);
+    const filteredRows = filterPlatformLeakage(sqlActionRows as unknown as any[], schema_names);
+    writePgpmPlan(filteredRows as unknown as PgpmRow[], opts);
+    writePgpmFiles(filteredRows as unknown as PgpmRow[], opts);
   } else {
     console.log('No sql_actions found. Skipping database module export.');
   }
diff --git a/pgpm/export/src/export-migrations.ts b/pgpm/export/src/export-migrations.ts
index 9edf0fc62..645459e37 100644
--- a/pgpm/export/src/export-migrations.ts
+++ b/pgpm/export/src/export-migrations.ts
@@ -14,7 +14,8 @@ import {
   installMissingModules,
   makeReplacer,
   preparePackage,
-  normalizeOutdir
+  normalizeOutdir,
+  filterPlatformLeakage
 } from './export-utils';
 
 interface ExportMigrationsToDiskOptions {
@@ -148,6 +149,14 @@ const exportMigrationsToDisk = async ({
     [databaseId]
   );
 
+  // =========================================================================
+  // Platform leakage filter — strip platform-integrated actions and
+  // cross-package requires from the exported package. See
+  // filterPlatformLeakage() in export-utils.ts for details.
+  // =========================================================================
+  const filteredRows = filterPlatformLeakage(results?.rows ?? [], schema_names);
+
+
   const opts: SqlWriteOptions = {
     name,
     replacer,
@@ -158,7 +167,7 @@ const exportMigrationsToDisk = async ({
   // Build description for the database extension package
   const dbExtensionDesc = extensionDesc || `${name} database schema for ${databaseName}`;
 
-  if (results?.rows?.length > 0) {
+  if (filteredRows.length > 0) {
     // Detect missing modules at workspace level and prompt user
     const dbMissingResult = await detectMissingModules(project, [...DB_REQUIRED_EXTENSIONS], prompter, argv);
 
@@ -180,8 +189,8 @@ const exportMigrationsToDisk = async ({
       await installMissingModules(dbModuleDir, dbMissingResult.missingModules);
     }
 
-    writePgpmPlan(results.rows, opts);
-    writePgpmFiles(results.rows, opts);
+    writePgpmPlan(filteredRows, opts);
+    writePgpmFiles(filteredRows, opts);
   } else {
     console.log('No sql_actions found — skipping database module. Meta/service module will still be exported.');
   }
diff --git a/pgpm/export/src/export-utils.ts b/pgpm/export/src/export-utils.ts
index 847a1421a..ba2fdc38e 100644
--- a/pgpm/export/src/export-utils.ts
+++ b/pgpm/export/src/export-utils.ts
@@ -866,3 +866,34 @@ export const preparePackage = async ({
 export const normalizeOutdir = (outdir: string): string => {
   return outdir.endsWith(path.sep) ? outdir : outdir + path.sep;
 };
+
+// =============================================================================
+// Platform leakage filter
+// =============================================================================
+
+/**
+ * Filters cross-package deps from sql_actions rows before writing them
+ * as a per-tenant package. Strips deps that reference schemas not owned
+ * by this database so requires directives only reference tenant-owned
+ * schemas.
+ *
+ * Mirror trigger exclusion is handled upstream via the category mechanism:
+ * create_trigger_function(v_category := 'platform_mirror') → insert_action
+ * → depase_ast trigger → db_migrate.sql_actions.category = 'platform_mirror'.
+ * The server sets export.exclude_categories = 'platform_mirror' (via the
+ * X-Exclude-Categories header → pgSettings GUC) which activates the
+ * export_category_filter RLS policy, making those rows invisible at the
+ * SQL layer before the export code sees them.
+ */
+export const filterPlatformLeakage = (rows: any[], schema_names: string[]): any[] => {
+  const ownedPrefixes = schema_names.map(s => `schemas/${s}/`);
+
+  return rows.map((row: any) => {
+    if (Array.isArray(row.deps)) {
+      row.deps = row.deps.filter((dep: string) =>
+        ownedPrefixes.some(p => dep.includes(p))
+      );
+    }
+    return row;
+  });
+};
diff --git a/pgpm/export/src/index.ts b/pgpm/export/src/index.ts
index b357a3d2a..d70395972 100644
--- a/pgpm/export/src/index.ts
+++ b/pgpm/export/src/index.ts
@@ -16,7 +16,8 @@ export {
   preparePackage,
   normalizeOutdir,
   detectMissingModules,
-  installMissingModules
+  installMissingModules,
+  filterPlatformLeakage
 } from './export-utils';
 export type {
   FieldType,