diff --git a/AGENTS.md b/AGENTS.md
index bad5345..b3fd1d5 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -364,6 +364,7 @@ For a normal code change run the relevant focused tests plus:
 - `npm test`
 - `npm run build:api`
 - `npm run build:web`
+- `npm run typecheck:scripts`
 - `npx tsc --noEmit -p tsconfig.next.json`
 
 Use a concise imperative commit message for each completed, verified work package.
diff --git a/docs/current-architecture.md b/docs/current-architecture.md
index a8d4be5..6c1bff3 100644
--- a/docs/current-architecture.md
+++ b/docs/current-architecture.md
@@ -252,6 +252,8 @@ Kopieren in ein Projekt erzeugt ein eigenständiges Projektgerät.
 - `npm run db:migrate` wendet Drizzle-Migrationen an.
 - `npm run db:verify:circuit-schema` prüft erforderliche und entfernte Spalten.
 - `npm run db:backup` erzeugt ein konsistentes und verifiziertes Online-Backup.
+- `npm run typecheck:scripts` prüft alle TypeScript-Wartungs- und
+  Upgrade-Skripte mit ihren Anwendungspfaden, ohne Code zu erzeugen.
 - Angewendete Migrationen werden niemals nachträglich verändert.
 - `db:migrate:legacy-consumers` ist Upgrade-Werkzeug, kein Anwendungspfad.
   Der fachliche Migrationsdienst kennt nur schmale Reader-/Store-Ports unter
diff --git a/docs/development-workflow.md b/docs/development-workflow.md
index 5728a14..175891c 100644
--- a/docs/development-workflow.md
+++ b/docs/development-workflow.md
@@ -70,6 +70,7 @@ Beispiel `Preserve circuit blocks during filtering`.
 npm test
 npm run build:api
 npm run build:web
+npm run typecheck:scripts
 npx tsc --noEmit -p tsconfig.next.json
 git diff --check
 ```
diff --git a/docs/spec/07-implementation-phases-todo.md b/docs/spec/07-implementation-phases-todo.md
index 96fea8d..6bce04b 100644
--- a/docs/spec/07-implementation-phases-todo.md
+++ b/docs/spec/07-implementation-phases-todo.md
@@ -303,6 +303,8 @@ Acceptance criteria:
 
 ## Phase 11: Persistence and Transaction Foundation
 
+Status: Complete.
+
 Goal:
 
 Prepare the current SQLite implementation for persistent history and a later PostgreSQL adapter without changing user-facing behavior.
@@ -358,6 +360,8 @@ Implemented foundation:
 - all general application repositories require an explicit database context;
   server composition owns their runtime instances and controllers contain no
   direct global SQLite access
+- TypeScript maintenance and upgrade scripts have a dedicated no-emit
+  typecheck, including all referenced application modules
 - the legacy consumer UI and application read/write endpoints are removed after verified data cutover
 - retained legacy rows are accessible only through explicit database upgrade tooling
 - project devices no longer persist duplicate legacy power, phase, cosPhi or remark fields
diff --git a/package.json b/package.json
index 9b0851f..8583e15 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "build": "npm run build:api",
     "build:api": "tsc -p tsconfig.json",
     "build:web": "next build",
+    "typecheck:scripts": "tsc --noEmit -p tsconfig.scripts.json",
     "start": "node dist/server/index.js",
     "test": "tsx --test tests/project-device-schema.test.ts tests/project-device-schema-migration.test.ts tests/project-device-placement.service.test.ts tests/project-device-sync.service.test.ts tests/legacy-consumer-migration-planner.test.ts tests/legacy-consumer-migration.service.test.ts tests/legacy-consumer-migration.repository.test.ts tests/circuit-numbering.service.test.ts tests/circuit-power-calculation.test.ts tests/circuit-tree.controller.test.ts tests/circuit-editor-history.test.ts tests/circuit-grid-insertion.test.ts tests/circuit-grid-safety.test.ts tests/circuit-grid-model.test.ts tests/circuit-structure-command.test.ts tests/circuit-device-row-move-command.test.ts tests/circuit-section-reorder-command.test.ts tests/circuit-section-renumber-command.test.ts tests/circuit-grid-projection.test.ts tests/distribution-board-structure-project-command.repository.test.ts tests/project-location-structure-project-command.repository.test.ts tests/project-device-project-command.repository.test.ts tests/project-device-structure-project-command.repository.test.ts tests/project-device-row-sync-project-command.repository.test.ts tests/circuit-section-reorder-project-command.repository.test.ts tests/circuit-section-renumber-project-command.repository.test.ts tests/project-command.model.test.ts tests/project-revision.persistence.test.ts tests/circuit-project-command.repository.test.ts tests/circuit-structure-project-command.repository.test.ts tests/circuit-device-row-project-command.repository.test.ts tests/circuit-device-row-structure-project-command.repository.test.ts tests/circuit-device-row-move-project-command.repository.test.ts tests/project-history.repository.test.ts tests/project-history-timeline.test.ts tests/project-version-history.test.ts tests/project-settings-project-command.repository.test.ts tests/project-state-snapshot.test.ts tests/project-snapshot-policy.test.ts tests/project-snapshot.repository.test.ts tests/project-state-restore-command.repository.test.ts tests/project-command.service.test.ts tests/database-backup.test.ts",
     "test:watch": "tsx --watch --test tests/project-device-schema.test.ts tests/project-device-schema-migration.test.ts tests/project-device-placement.service.test.ts tests/project-device-sync.service.test.ts tests/legacy-consumer-migration-planner.test.ts tests/legacy-consumer-migration.service.test.ts tests/legacy-consumer-migration.repository.test.ts tests/circuit-numbering.service.test.ts tests/circuit-power-calculation.test.ts tests/circuit-tree.controller.test.ts tests/circuit-editor-history.test.ts tests/circuit-grid-insertion.test.ts tests/circuit-grid-safety.test.ts tests/circuit-grid-model.test.ts tests/circuit-structure-command.test.ts tests/circuit-device-row-move-command.test.ts tests/circuit-section-reorder-command.test.ts tests/circuit-section-renumber-command.test.ts tests/circuit-grid-projection.test.ts tests/distribution-board-structure-project-command.repository.test.ts tests/project-location-structure-project-command.repository.test.ts tests/project-device-project-command.repository.test.ts tests/project-device-structure-project-command.repository.test.ts tests/project-device-row-sync-project-command.repository.test.ts tests/circuit-section-reorder-project-command.repository.test.ts tests/circuit-section-renumber-project-command.repository.test.ts tests/project-command.model.test.ts tests/project-revision.persistence.test.ts tests/circuit-project-command.repository.test.ts tests/circuit-structure-project-command.repository.test.ts tests/circuit-device-row-project-command.repository.test.ts tests/circuit-device-row-structure-project-command.repository.test.ts tests/circuit-device-row-move-project-command.repository.test.ts tests/project-history.repository.test.ts tests/project-history-timeline.test.ts tests/project-version-history.test.ts tests/project-settings-project-command.repository.test.ts tests/project-state-snapshot.test.ts tests/project-snapshot-policy.test.ts tests/project-snapshot.repository.test.ts tests/project-state-restore-command.repository.test.ts tests/project-command.service.test.ts tests/database-backup.test.ts",
diff --git a/tsconfig.scripts.json b/tsconfig.scripts.json
new file mode 100644
index 0000000..ea4c56f
--- /dev/null
+++ b/tsconfig.scripts.json
@@ -0,0 +1,9 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "noEmit": true,
+    "rootDir": "."
+  },
+  "include": ["scripts/**/*.ts", "src/**/*.ts"],
+  "exclude": ["node_modules", "dist"]
+}