fix: keep Drizzle out of every published declaration (ADR 0053)

@ekklesia/contracts still emitted a type-only import of
drizzle-orm/node-postgres for the legacy ModuleDatabase facade, so a
standalone module type-checked only because skipLibCheck hid it.

- ModuleDatabase, LegacyModuleRuntimeServices and
  AnyModuleRuntimeServices move to core/src/modules/database.ts, beside
  the facade Core builds; the facade itself is unchanged.
- contracts' runtime, route, and services generics no longer name an
  ORM: the database type is a plain parameter defaulting to the ABI v1
  executor, and the legacy definition's database is opaque until Core
  specializes it. Core and apps/api name the legacy types from Core.
- contracts drops its drizzle-orm optional peer and devDependency;
  Drizzle stays public only through @ekklesia/module-database/drizzle.
- The facade's type-level test moves from contracts to Core.
- Regression proof: the standalone fixture type-checks with
  skipLibCheck: false against the packed tarballs, with no drizzle-orm
  installed (the smoke asserts both). Against the previous contracts
  tarball the same check fails with TS2307 on drizzle-orm/node-postgres.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/api/src/app.ts

@@ -1,6 +1,5 @@
 import {
   isAuthenticatedPrincipal,
-  type ModuleRuntimeServices,
   type ModuleSecretSource,
   type RegisteredModuleHttpRoute,
 } from "@ekklesia/contracts";
@@ -13,6 +12,7 @@ import type { DashboardStore } from "@ekklesia/core/dashboard";
 import type { DeviceStore } from "@ekklesia/core/devices";
 import { type EkklesiaIdentityRuntime, IdentityRuntimeError } from "@ekklesia/core/identity";
 import type {
+  AnyModuleRuntimeServices,
   DiscoveredModule,
   ModuleConfigurationLookup,
   ModuleConfigurationSettings,
@@ -66,7 +66,7 @@ export interface CreateApiAppOptions {
   /** The same per-module service lookup the caller's started module runtime used for every
    * module's `start`/`stop` hooks (`apps/api/src/server.ts`) — each handler receives its module's
    * reference-identical service object, never a fresh facade or executor built per request. */
-  readonly moduleServices: ModuleRuntimeServicesLookup | ModuleRuntimeServices;
+  readonly moduleServices: ModuleRuntimeServicesLookup | AnyModuleRuntimeServices;
   /** The platform's module UI publication policy — always the one Core builds from the exact
    * discovered inventory this runtime started (`createModuleUiPublicationRegistry`,
    * `apps/api/src/server.ts`). Required rather than defaulted, for the same reason `moduleRoutes`

apps/api/src/database.ts

@@ -1,4 +1,4 @@
-import type { ModuleDatabase, ModuleDatabaseExecutor, ModuleId } from "@ekklesia/contracts";
+import type { ModuleDatabaseExecutor, ModuleId } from "@ekklesia/contracts";
 import {
   type AuthorizationDrizzleDatabase,
   createAuthorizationDrizzleView,
@@ -16,6 +16,7 @@ import {
   createModuleDatabaseView,
   createModuleLifecycleView,
   type ModuleConfigurationDrizzleDatabase,
+  type ModuleDatabase,
   type ModuleLifecycleDrizzleDatabase,
 } from "@ekklesia/core/modules";
 

apps/api/src/module-http-routes.ts

@@ -1,15 +1,15 @@
 import {
   EMPTY_MODULE_CONFIGURATION,
   EMPTY_MODULE_STORAGE,
-  type ModuleDatabase,
   type ModuleDatabaseExecutor,
   type ModuleId,
   type ModuleRouteHandlerContext,
-  type ModuleRuntimeServices,
   type RegisteredModuleHttpRoute,
 } from "@ekklesia/contracts";
 import type {
+  AnyModuleRuntimeServices,
   ModuleConfigurationLookup,
+  ModuleDatabase,
   ModuleRealtimeRegistry,
   ModuleRuntimeServicesLookup,
   ModuleStorageLookup,
@@ -40,7 +40,7 @@ export interface ModuleHttpRoutesOptions extends AuthorizationMiddlewareOptions
    * received for this API runtime — never a fresh one built per request, and never touched for a
    * denied, trusted-origin-rejected, or `OPTIONS` request, since a handler is only ever invoked
    * after authorization succeeds. */
-  readonly services: ModuleRuntimeServicesLookup | ModuleRuntimeServices;
+  readonly services: ModuleRuntimeServicesLookup | AnyModuleRuntimeServices;
   /**
    * Per-module frozen configuration snapshots — the exact map the module runtime started from
    * (ADR 0029), so a handler and that module's `start`/`stop` hooks receive the identical object

apps/api/src/server.ts

@@ -1,11 +1,7 @@
 import type { Socket } from "node:net";
 import path from "node:path";
 import { pathToFileURL } from "node:url";
-import {
+import { EMPTY_MODULE_SECRET_SOURCE, type ModuleSecretSource } from "@ekklesia/contracts";
-  type AnyModuleRuntimeServices,
-  EMPTY_MODULE_SECRET_SOURCE,
-  type ModuleSecretSource,
-} from "@ekklesia/contracts";
 import {
   createAuthorizationEvaluator,
   createAuthorizationStore,
@@ -21,6 +17,7 @@ import {
 } from "@ekklesia/core/identity";
 import { createSmtpMailProvider, type MailProvider } from "@ekklesia/core/mail";
 import {
+  type AnyModuleRuntimeServices,
   createModuleConfigurationStore,
   createModuleLifecycleStore,
   createModuleUiPublicationRegistry,

apps/api/tests/app.test.ts

@@ -1,8 +1,6 @@
 import {
   ANONYMOUS_PRINCIPAL,
   createAuthenticatedPrincipal,
-  type ModuleDatabase,
-  type ModuleRuntimeServices,
   moduleIdSchema,
   parseEkklesiaUserId,
   parsePermissionId,
@@ -20,6 +18,8 @@ import { IdentityRuntimeError } from "@ekklesia/core/identity";
 import {
   createModuleUiPublicationRegistry,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
   type ModuleUiPublicationRegistry,
   StagedModuleRealtimeRegistry,
 } from "@ekklesia/core/modules";
@@ -48,9 +48,9 @@ function fakeRuntime(overrides: Partial<EkklesiaIdentityRuntime> = {}): Ekklesia
   };
 }
 
-/** A small typed fake `ModuleRuntimeServices` — these tests exercise `createApiApp`'s own wiring,
+/** A small typed fake `LegacyModuleRuntimeServices` — these tests exercise `createApiApp`'s own wiring,
  * never real database behavior, so no PostgreSQL is required. */
-function fakeModuleServices(): ModuleRuntimeServices {
+function fakeModuleServices(): LegacyModuleRuntimeServices {
   const database = Object.freeze({
     delete: vi.fn(),
     execute: vi.fn(),

apps/api/tests/dashboard-host-routes.test.ts

@@ -1,9 +1,7 @@
 import { createHash } from "node:crypto";
 import {
   ANONYMOUS_PRINCIPAL,
-  type ModuleDatabase,
   type ModuleRouteHandler,
-  type ModuleRuntimeServices,
   parsePermissionId,
   type RegisteredModuleHttpRoute,
 } from "@ekklesia/contracts";
@@ -16,6 +14,8 @@ import type { EkklesiaIdentityRuntime } from "@ekklesia/core/identity";
 import {
   createModuleUiPublicationRegistry,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
 } from "@ekklesia/core/modules";
 import { describe, expect, it, vi } from "vitest";
 
@@ -74,7 +74,7 @@ function fakeStore(): AuthorizationStore {
   };
 }
 
-function fakeModuleServices(): ModuleRuntimeServices {
+function fakeModuleServices(): LegacyModuleRuntimeServices {
   return Object.freeze({ database: Object.freeze({}) as unknown as ModuleDatabase });
 }
 

apps/api/tests/dashboard-routes.test.ts

@@ -5,8 +5,6 @@ import {
   ANONYMOUS_PRINCIPAL,
   createAuthenticatedPrincipal,
   type EkklesiaPrincipal,
-  type ModuleDatabase,
-  type ModuleRuntimeServices,
   parseEkklesiaUserId,
 } from "@ekklesia/contracts";
 import {
@@ -20,6 +18,8 @@ import {
   createModuleUiPublicationRegistry,
   discoverModules,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
 } from "@ekklesia/core/modules";
 import type { Hono } from "hono";
 import { afterEach, describe, expect, it, vi } from "vitest";
@@ -147,7 +147,7 @@ async function install(options: InstallOptions = {}): Promise<{ app: Hono }> {
     moduleRealtime: EMPTY_MODULE_REALTIME_REGISTRY,
     moduleServices: Object.freeze({
       database: Object.freeze({}) as unknown as ModuleDatabase,
-    }) as ModuleRuntimeServices,
+    }) as LegacyModuleRuntimeServices,
     moduleUi: createModuleUiPublicationRegistry(modules),
     moduleLifecycle: {
       snapshot: moduleLifecycleSnapshotFor(modules),

apps/api/tests/health-routes.test.ts

@@ -1,8 +1,6 @@
 import {
   ANONYMOUS_PRINCIPAL,
-  type ModuleDatabase,
   type ModuleRouteHandler,
-  type ModuleRuntimeServices,
   parsePermissionId,
   type RegisteredModuleHttpRoute,
 } from "@ekklesia/contracts";
@@ -15,6 +13,8 @@ import type { EkklesiaIdentityRuntime } from "@ekklesia/core/identity";
 import {
   createModuleUiPublicationRegistry,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
 } from "@ekklesia/core/modules";
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { createApiApp } from "../src/app.js";
@@ -56,7 +56,7 @@ function fakeStore(): AuthorizationStore {
   };
 }
 
-function fakeModuleServices(): ModuleRuntimeServices {
+function fakeModuleServices(): LegacyModuleRuntimeServices {
   return Object.freeze({ database: Object.freeze({}) as unknown as ModuleDatabase });
 }
 

apps/api/tests/module-configuration-routes.test.ts

@@ -6,8 +6,6 @@ import {
   createAuthenticatedPrincipal,
   type EkklesiaPrincipal,
   type ModuleConfigurationDeclarationInput,
-  type ModuleDatabase,
-  type ModuleRuntimeServices,
   parseEkklesiaUserId,
 } from "@ekklesia/contracts";
 import {
@@ -22,10 +20,12 @@ import {
   createModuleUiPublicationRegistry,
   type DiscoveredModule,
   discoverModules,
+  type LegacyModuleRuntimeServices,
   type ModuleConfigurationRecord,
   type ModuleConfigurationStore,
   ModuleConfigurationStoreError,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type ModuleDatabase,
   resolveModuleEligibility,
 } from "@ekklesia/core/modules";
 import type { Hono } from "hono";
@@ -213,7 +213,7 @@ async function install(options: InstallOptions = {}): Promise<Installation> {
     moduleRealtime: EMPTY_MODULE_REALTIME_REGISTRY,
     moduleServices: Object.freeze({
       database: Object.freeze({}) as unknown as ModuleDatabase,
-    }) as ModuleRuntimeServices,
+    }) as LegacyModuleRuntimeServices,
     moduleUi: createModuleUiPublicationRegistry(eligibility.eligibleModules),
     runtime,
     trustedOrigins: [trustedOrigin],

apps/api/tests/module-display-routes.test.ts

@@ -5,8 +5,6 @@ import {
   ANONYMOUS_PRINCIPAL,
   createAuthenticatedPrincipal,
   type EkklesiaPrincipal,
-  type ModuleDatabase,
-  type ModuleRuntimeServices,
   parseEkklesiaUserId,
 } from "@ekklesia/contracts";
 import {
@@ -21,6 +19,8 @@ import {
   type DiscoveredModule,
   discoverModules,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
 } from "@ekklesia/core/modules";
 import type { Hono } from "hono";
 import { afterEach, describe, expect, it, vi } from "vitest";
@@ -155,7 +155,7 @@ interface Installation {
   readonly modules: readonly DiscoveredModule[];
 }
 
-function fakeServices(): ModuleRuntimeServices {
+function fakeServices(): LegacyModuleRuntimeServices {
   return Object.freeze({ database: Object.freeze({}) as unknown as ModuleDatabase });
 }
 

apps/api/tests/module-http-routes.test.ts

@@ -1,10 +1,8 @@
 import {
   ANONYMOUS_PRINCIPAL,
   createAuthenticatedPrincipal,
-  type ModuleDatabase,
   type ModuleRouteHandler,
   type ModuleRouteHandlerContext,
-  type ModuleRuntimeServices,
   moduleRoutesOverlap,
   type PermissionId,
   parsePermissionId,
@@ -20,6 +18,8 @@ import type { EkklesiaIdentityRuntime } from "@ekklesia/core/identity";
 import {
   createModuleUiPublicationRegistry,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
   type ModuleRuntimeServicesLookup,
 } from "@ekklesia/core/modules";
 import { describe, expect, it, vi } from "vitest";
@@ -74,11 +74,11 @@ function moduleRoute(
   return Object.freeze({ bodyMode: "buffered", maxBodyBytes: 1024, ...fields });
 }
 
-/** A small typed fake `ModuleRuntimeServices` — these tests exercise route mounting,
+/** A small typed fake `LegacyModuleRuntimeServices` — these tests exercise route mounting,
  * authorization, and response sanitization, never real database behavior, so no PostgreSQL is
  * required. Each `database` method stays a distinct spy so a test can assert none of them were
  * ever called (denied, trusted-origin-rejected, and `OPTIONS` requests never reach a handler). */
-function fakeModuleServices(): ModuleRuntimeServices {
+function fakeModuleServices(): LegacyModuleRuntimeServices {
   const database = Object.freeze({
     delete: vi.fn(),
     execute: vi.fn(),
@@ -92,7 +92,7 @@ function fakeModuleServices(): ModuleRuntimeServices {
   return Object.freeze({ database });
 }
 
-function expectDatabaseFakeUntouched(services: ModuleRuntimeServices): void {
+function expectDatabaseFakeUntouched(services: LegacyModuleRuntimeServices): void {
   expect(vi.mocked(services.database.select)).not.toHaveBeenCalled();
   expect(vi.mocked(services.database.selectDistinct)).not.toHaveBeenCalled();
   expect(vi.mocked(services.database.selectDistinctOn)).not.toHaveBeenCalled();
@@ -108,7 +108,7 @@ function buildModuleApp(options: {
   readonly registry: PermissionRegistry;
   readonly routes: readonly RegisteredModuleHttpRoute[];
   readonly runtime?: EkklesiaIdentityRuntime;
-  readonly services?: ModuleRuntimeServices | ModuleRuntimeServicesLookup;
+  readonly services?: LegacyModuleRuntimeServices | ModuleRuntimeServicesLookup;
   readonly trustedOrigins?: readonly string[];
 }) {
   const evaluator = options.evaluator ?? {
@@ -539,7 +539,7 @@ describe("module route authorization", () => {
     expect(response.status).toBe(403);
     expect(await response.json()).toEqual({ code: "AUTHORIZATION_DENIED" });
     expect(handler).not.toHaveBeenCalled();
-    expectDatabaseFakeUntouched(services as ModuleRuntimeServices);
+    expectDatabaseFakeUntouched(services as LegacyModuleRuntimeServices);
   });
 
   it("does not invoke the handler when principal resolution fails", async () => {
@@ -668,7 +668,7 @@ describe("module route trusted-origin enforcement", () => {
     }
     expect(handler).not.toHaveBeenCalled();
     expect(evaluator.authorize).not.toHaveBeenCalled();
-    expectDatabaseFakeUntouched(services as ModuleRuntimeServices);
+    expectDatabaseFakeUntouched(services as LegacyModuleRuntimeServices);
   });
 
   it("allows a trusted-origin state-changing request through to the handler", async () => {
@@ -797,7 +797,7 @@ describe("module route CORS", () => {
 
     expect(handler).not.toHaveBeenCalled();
     expect(evaluator.authorize).not.toHaveBeenCalled();
-    expectDatabaseFakeUntouched(services as ModuleRuntimeServices);
+    expectDatabaseFakeUntouched(services as LegacyModuleRuntimeServices);
   });
 
   it("never reflects an untrusted origin for a module route", async () => {

apps/api/tests/module-lifecycle-routes.test.ts

@@ -5,8 +5,6 @@ import {
   ANONYMOUS_PRINCIPAL,
   createAuthenticatedPrincipal,
   type EkklesiaPrincipal,
-  type ModuleDatabase,
-  type ModuleRuntimeServices,
   parseEkklesiaUserId,
 } from "@ekklesia/contracts";
 import {
@@ -20,6 +18,8 @@ import {
   createModuleUiPublicationRegistry,
   type DiscoveredModule,
   discoverModules,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
   type ModuleLifecycleStore,
   ModuleLifecycleStoreError,
   EMPTY_MODULE_REALTIME_REGISTRY,
@@ -189,7 +189,7 @@ async function install(options: InstallOptions = {}): Promise<Installation> {
     moduleRealtime: EMPTY_MODULE_REALTIME_REGISTRY,
     moduleServices: Object.freeze({
       database: Object.freeze({}) as unknown as ModuleDatabase,
-    }) as ModuleRuntimeServices,
+    }) as LegacyModuleRuntimeServices,
     moduleUi: createModuleUiPublicationRegistry(eligibility.eligibleModules),
     runtime,
     trustedOrigins: [trustedOrigin],

apps/api/tests/module-realtime-live.test.ts

@@ -4,9 +4,7 @@ import path from "node:path";
 import {
   ANONYMOUS_PRINCIPAL,
   createAuthenticatedPrincipal,
-  type ModuleDatabase,
   type ModuleRealtimePublisher,
-  type ModuleRuntimeServices,
   parseEkklesiaUserId,
 } from "@ekklesia/contracts";
 import {
@@ -18,6 +16,8 @@ import type { EkklesiaIdentityRuntime } from "@ekklesia/core/identity";
 import {
   composePlatformPermissionRegistry,
   discoverModules,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
   type ModuleRealtimeRegistry,
   type ModuleRealtimeSubscription,
   startDiscoveredModuleRuntime,
@@ -226,7 +226,7 @@ async function createFixtureModule(control: FixtureControl): Promise<{
   return { directory, symbol };
 }
 
-function services(): ModuleRuntimeServices {
+function services(): LegacyModuleRuntimeServices {
   return Object.freeze({ database: Object.freeze({}) as ModuleDatabase });
 }
 

apps/api/tests/module-ui-host-e2e.test.ts

@@ -5,8 +5,6 @@ import {
   ANONYMOUS_PRINCIPAL,
   createAuthenticatedPrincipal,
   type EkklesiaPrincipal,
-  type ModuleDatabase,
-  type ModuleRuntimeServices,
   parseEkklesiaUserId,
 } from "@ekklesia/contracts";
 import {
@@ -18,6 +16,8 @@ import {
   composePlatformPermissionRegistry,
   createModuleUiPublicationRegistry,
   discoverModules,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
   startDiscoveredModuleRuntime,
 } from "@ekklesia/core/modules";
 import {
@@ -241,7 +241,7 @@ async function startHarness(options: HarnessOptions = {}): Promise<Harness> {
     modulesDirectory,
     platformVersion: "0.1.0",
   });
-  const services: ModuleRuntimeServices = Object.freeze({
+  const services: LegacyModuleRuntimeServices = Object.freeze({
     database: Object.freeze({}) as unknown as ModuleDatabase,
   });
   // The module's real runtime: its server entrypoint is imported, registered, and started, and the

apps/api/tests/module-ui-inventory.test.ts

@@ -5,8 +5,6 @@ import {
   ANONYMOUS_PRINCIPAL,
   createAuthenticatedPrincipal,
   type EkklesiaPrincipal,
-  type ModuleDatabase,
-  type ModuleRuntimeServices,
   parseEkklesiaUserId,
 } from "@ekklesia/contracts";
 import {
@@ -21,6 +19,8 @@ import {
   type DiscoveredModule,
   discoverModules,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
 } from "@ekklesia/core/modules";
 import type { Hono } from "hono";
 import { afterEach, describe, expect, it, vi } from "vitest";
@@ -192,7 +192,7 @@ async function install(options: InstallOptions): Promise<Installation> {
     revokeGrant: vi.fn(),
     revokePlatformOwner: vi.fn(),
   } as unknown as AuthorizationStore;
-  const services: ModuleRuntimeServices = Object.freeze({
+  const services: LegacyModuleRuntimeServices = Object.freeze({
     database: Object.freeze({}) as unknown as ModuleDatabase,
   });
   const permissionRegistry = composePlatformPermissionRegistry(modules);

apps/api/tests/module-ui-routes.test.ts

@@ -1,11 +1,7 @@
 import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import path from "node:path";
-import {
+import { ANONYMOUS_PRINCIPAL } from "@ekklesia/contracts";
-  ANONYMOUS_PRINCIPAL,
-  type ModuleDatabase,
-  type ModuleRuntimeServices,
-} from "@ekklesia/contracts";
 import type { AuthorizationEvaluator, AuthorizationStore } from "@ekklesia/core/authorization";
 import type { EkklesiaIdentityRuntime } from "@ekklesia/core/identity";
 import {
@@ -14,6 +10,8 @@ import {
   type DiscoveredModule,
   discoverModules,
   EMPTY_MODULE_REALTIME_REGISTRY,
+  type LegacyModuleRuntimeServices,
+  type ModuleDatabase,
 } from "@ekklesia/core/modules";
 import { loadModuleUi } from "@ekklesia/module-ui-host";
 import { MODULE_UI_ABI_VERSION, NO_MODULE_UI_CONTRIBUTIONS } from "@ekklesia/module-ui-sdk";
@@ -215,7 +213,7 @@ async function install(
       : modules.filter((module) => publicationModuleIds.includes(module.manifest.id));
 
   const database = Object.freeze({}) as unknown as ModuleDatabase;
-  const services: ModuleRuntimeServices = Object.freeze({ database });
+  const services: LegacyModuleRuntimeServices = Object.freeze({ database });
   const runtime: EkklesiaIdentityRuntime = {
     handleAuthRequest: vi.fn().mockResolvedValue(new Response(null, { status: 200 })),
     // Anonymous, and every authorization decision denied: whatever this route does, it does it

core/src/modules/database.ts

@@ -1,7 +1,54 @@
-import type { ModuleDatabase } from "@ekklesia/contracts";
+import type { ModuleDatabaseAbiRuntimeServices, ModuleRuntimeServices } from "@ekklesia/contracts";
-import { drizzle } from "drizzle-orm/node-postgres";
+import { drizzle, type NodePgDatabase } from "drizzle-orm/node-postgres";
 import type { Pool } from "pg";
 
+/**
+ * A trusted backend module's typed Drizzle query surface — the same query-building methods a
+ * platform-owned Drizzle instance exposes, restricted to exactly the operations a module needs to
+ * read and write its own tables. Derived with `Pick` from the real `drizzle-orm/node-postgres`
+ * database type rather than hand-declared, so every method keeps Drizzle's own table-aware
+ * argument and result inference exactly as-is — a module calling `database.select().from(table)`
+ * or `database.insert(table).values(...)` gets the identical typed builder a direct Drizzle caller
+ * would, with no `any`/`unknown` erasure anywhere in the chain.
+ *
+ * Deliberately excludes everything `NodePgDatabase` or the `drizzle(...)` factory otherwise
+ * exposes: `$client` (the raw `pg` client/pool), `_` (internal session/dialect/schema state),
+ * `query` (a relational-query builder tied to one schema, which would have to span every
+ * installed module's tables to exist here at all), `$cache`, `$count`, `$with`, `with`, and
+ * `refreshMaterializedView`. There is no connection string, pool, session, or dialect object
+ * reachable through this type. Carries no schema generic — a module brings its own Drizzle table
+ * objects to each call, so there is no global relational schema spanning every installed module for
+ * this type to leak.
+ *
+ * Core's own, private type (ADR 0053): it moved here from `@ekklesia/contracts` so no published
+ * package references Drizzle. New modules use the Module Database ABI v1 instead (ADR 0050), and
+ * the Module SDK never exposes this facade's type.
+ *
+ * This is an integration boundary, not a security sandbox: modules are trusted, compiled backend
+ * plugins that already run arbitrary code in this process, exactly like every other lifecycle hook
+ * and HTTP handler they define. `ModuleDatabase` exists to keep a module's code Drizzle-typed and
+ * decoupled from how the platform physically connects to PostgreSQL — not to defend against a
+ * malicious module, which this facade cannot do and does not attempt to do.
+ */
+export type ModuleDatabase = Pick<
+  NodePgDatabase,
+  | "select"
+  | "selectDistinct"
+  | "selectDistinctOn"
+  | "insert"
+  | "update"
+  | "delete"
+  | "execute"
+  | "transaction"
+>;
+
+/** The services a legacy module's hooks and handlers receive: the legacy facade. */
+export type LegacyModuleRuntimeServices = ModuleRuntimeServices<ModuleDatabase>;
+/** The services Core hands any started module: the legacy facade or the ABI v1 executor. */
+export type AnyModuleRuntimeServices =
+  | LegacyModuleRuntimeServices
+  | ModuleDatabaseAbiRuntimeServices;
+
 /**
  * A typed `ModuleDatabase` view over an externally owned pool — the module-facing counterpart to
  * `createIdentityDrizzleView` (`core/src/identity/database.ts`) and

core/src/modules/runtime.ts

@@ -1,6 +1,5 @@
 import { pathToFileURL } from "node:url";
 import {
-  type AnyModuleRuntimeServices,
   type CapabilityId,
   type CapabilityRegistrar,
   type CapabilityResolver,
@@ -8,7 +7,6 @@ import {
   EMPTY_MODULE_CONFIGURATION,
   EMPTY_MODULE_STORAGE,
   type ModuleConfiguration,
-  type ModuleDatabase,
   type ModuleDatabaseExecutor,
   type ModuleHttpRouteRegistrar,
   type ModuleId,
@@ -19,7 +17,6 @@ import {
   type ModuleRouteHandler,
   type ModuleRuntimeContext,
   type ModuleRuntimeDefinition,
-  type ModuleRuntimeServices,
   type ModuleStorage,
   moduleRouteShapeKey,
   moduleRoutesOverlap,
@@ -28,6 +25,7 @@ import {
   type RegisteredModuleHttpRoute,
   safeParseModuleRouteDefinition,
 } from "@ekklesia/contracts";
+import type { AnyModuleRuntimeServices, ModuleDatabase } from "./database.js";
 import {
   type DiscoveredModule,
   discoverModules,
@@ -137,7 +135,7 @@ export type ModuleStorageLookup = ReadonlyMap<string, ModuleStorage>;
 /** One frozen service object per module id. Legacy modules may point at objects wrapping the same
  * facade; ABI-v1 modules each point at their own attributed executor. */
 export type ModuleRuntimeServicesLookup = ReadonlyMap<string, AnyModuleRuntimeServices>;
-export type ModuleRuntimeServicesSource = ModuleRuntimeServicesLookup | ModuleRuntimeServices;
+export type ModuleRuntimeServicesSource = ModuleRuntimeServicesLookup | AnyModuleRuntimeServices;
 
 function servicesFor(
   services: ModuleRuntimeServicesSource,
@@ -347,11 +345,11 @@ class StagedCapabilityRegistry {
   createRuntimeContext(
     module: DiscoveredModule,
     phase: "rollback" | "start" | "stop",
-    services: ModuleRuntimeServices,
+    services: AnyModuleRuntimeServices,
     config: ModuleConfiguration,
     storage: ModuleStorage,
     realtime: ModuleRealtimePublisher,
-  ): ModuleRuntimeContext {
+  ): ModuleRuntimeContext<ModuleDatabase | ModuleDatabaseExecutor> {
     const capabilities: CapabilityResolver = Object.freeze({
       resolve: (capabilityId: CapabilityId): RegisteredCapability | undefined => {
         this.#assertAccess(module, capabilityId, phase);
@@ -754,7 +752,7 @@ async function stopModules(
             registry.createRuntimeContext(
               module.discovered,
               phase,
-              servicesFor(services, module.discovered) as ModuleRuntimeServices,
+              servicesFor(services, module.discovered),
               configurationFor(configurations, moduleId),
               storageFor(storages, moduleId),
               realtimeRegistry.publisherFor(moduleId),
@@ -814,7 +812,7 @@ async function startModules(
         registry.createRuntimeContext(
           module.discovered,
           "start",
-          servicesFor(services, module.discovered) as ModuleRuntimeServices,
+          servicesFor(services, module.discovered),
           configurationFor(configurations, module.discovered.manifest.id),
           storageFor(storages, module.discovered.manifest.id),
           realtimeRegistry.publisherFor(module.discovered.manifest.id),

core/tests/module-database-type.test.ts

@@ -1,8 +1,8 @@
 import { integer, pgTable, text } from "drizzle-orm/pg-core";
 import { describe, expect, it } from "vitest";
-import type { ModuleDatabase, ModuleRuntimeServices } from "../src/index.js";
+import type { LegacyModuleRuntimeServices, ModuleDatabase } from "../src/modules/database.js";
 
-const testTable = pgTable("contracts_module_database_test", {
+const testTable = pgTable("core_module_database_type_test", {
   id: integer("id").primaryKey(),
   name: text("name").notNull(),
 });
@@ -68,16 +68,17 @@ function typeOnlyExclusions(database: ModuleDatabase): void {
 }
 void typeOnlyExclusions;
 
-/** Never invoked — proves `ModuleRuntimeServices` has exactly one field, `database`, typed as
+/** Never invoked — proves a legacy module's `ModuleRuntimeServices` has exactly one field,
- * `ModuleDatabase`, with no storage/jobs/configuration/secrets/authorization field this phase. */
+ * `database`, typed as `ModuleDatabase`, with no storage/jobs/configuration/secrets/authorization
-function typeOnlyServicesShape(services: ModuleRuntimeServices): void {
+ * field this phase. */
+function typeOnlyServicesShape(services: LegacyModuleRuntimeServices): void {
   const database: ModuleDatabase = services.database;
   void database;
-  // @ts-expect-error `storage` does not exist on `ModuleRuntimeServices` yet.
+  // @ts-expect-error `storage` does not exist on the services yet.
   void services.storage;
-  // @ts-expect-error `jobs` does not exist on `ModuleRuntimeServices` yet.
+  // @ts-expect-error `jobs` does not exist on the services yet.
   void services.jobs;
-  // @ts-expect-error `authorization` does not exist on `ModuleRuntimeServices` yet.
+  // @ts-expect-error `authorization` does not exist on the services yet.
   void services.authorization;
 }
 void typeOnlyServicesShape;

core/tests/module-realtime-runtime.test.ts

@@ -1,11 +1,8 @@
 import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import path from "node:path";
-import type {
+import type { ModuleRealtimePublisher } from "@ekklesia/contracts";
-  ModuleDatabase,
+import type { LegacyModuleRuntimeServices, ModuleDatabase } from "../src/modules/database.js";
-  ModuleRealtimePublisher,
-  ModuleRuntimeServices,
-} from "@ekklesia/contracts";
 import { afterEach, describe, expect, it } from "vitest";
 import { ModuleRuntimeError, startModuleRuntime } from "../src/modules/runtime.js";
 
@@ -22,7 +19,7 @@ afterEach(async () => {
   );
 });
 
-function fakeServices(): ModuleRuntimeServices {
+function fakeServices(): LegacyModuleRuntimeServices {
   return Object.freeze({ database: Object.freeze({}) as ModuleDatabase });
 }
 

core/tests/module-runtime.test.ts

@@ -1,13 +1,12 @@
 import { mkdir, mkdtemp, rm, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import path from "node:path";
+import type { ModuleConfiguration, ModuleDatabaseExecutor } from "@ekklesia/contracts";
 import type {
   AnyModuleRuntimeServices,
-  ModuleConfiguration,
+  LegacyModuleRuntimeServices,
   ModuleDatabase,
-  ModuleDatabaseExecutor,
+} from "../src/modules/database.js";
-  ModuleRuntimeServices,
-} from "@ekklesia/contracts";
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { discoverModules } from "../src/modules/discovery.js";
 import {
@@ -151,7 +150,7 @@ function fakeModuleDatabase(): ModuleDatabase {
 }
 
 function fakeModuleRuntimeServices(): ModuleRuntimeServicesLookup {
-  const services = new Map<string, ModuleRuntimeServices>();
+  const services = new Map<string, LegacyModuleRuntimeServices>();
   const database = fakeModuleDatabase();
   return new Proxy(services, {
     get(target, property, receiver) {

docs/development/api.md

@@ -1403,7 +1403,8 @@ stays declarative and database-free. See
 contract; this section covers only how `apps/api` composes and wires it.
 
 - **`ModuleDatabase`.** A restricted, typed view over `NodePgDatabase`
-  (`packages/contracts/src/module-database.ts`), exposing exactly `select`, `selectDistinct`,
+  (`core/src/modules/database.ts`, Core's own type: no published package references Drizzle, per
+  ADR 0053), exposing exactly `select`, `selectDistinct`,
   `selectDistinctOn`, `insert`, `update`, `delete`, `execute`, and `transaction`, each preserving
   Drizzle's own table-aware argument and result inference. It exposes no `$client`, no internal
   session/dialect state, no schema-bound relational `query` builder, and no connection string,

packages/contracts/package.json

@@ -27,20 +27,11 @@
     "spdx-expression-parse": "5.0.0",
     "zod": "4.4.3"
   },
-  "peerDependencies": {
-    "drizzle-orm": ">=0.45.2 <0.46.0"
-  },
-  "peerDependenciesMeta": {
-    "drizzle-orm": {
-      "optional": true
-    }
-  },
   "devDependencies": {
     "@biomejs/biome": "2.5.3",
     "@types/node": "24.13.3",
     "@types/semver": "7.7.1",
     "@types/spdx-expression-parse": "4.0.0",
-    "drizzle-orm": "0.45.2",
     "typescript": "7.0.2",
     "vitest": "4.1.10"
   },

packages/contracts/src/module-database.ts

@@ -1,59 +1,19 @@
-import type { NodePgDatabase } from "drizzle-orm/node-postgres";
 import type { ModuleDatabaseExecutor } from "./module-database-abi.js";
 
-/**
- * A trusted backend module's typed Drizzle query surface — the same query-building methods a
- * platform-owned Drizzle instance exposes, restricted to exactly the operations a module needs to
- * read and write its own tables. Derived with `Pick` from the real `drizzle-orm/node-postgres`
- * database type rather than hand-declared, so every method keeps Drizzle's own table-aware
- * argument and result inference exactly as-is — a module calling `database.select().from(table)`
- * or `database.insert(table).values(...)` gets the identical typed builder a direct Drizzle caller
- * would, with no `any`/`unknown` erasure anywhere in the chain.
- *
- * Deliberately excludes everything `NodePgDatabase` or the `drizzle(...)` factory otherwise
- * exposes: `$client` (the raw `pg` client/pool), `_` (internal session/dialect/schema state),
- * `query` (a relational-query builder tied to one schema, which would have to span every
- * installed module's tables to exist here at all), `$cache`, `$count`, `$with`, `with`, and
- * `refreshMaterializedView`. There is no connection string, pool, session, or dialect object
- * reachable through this type. Carries no schema generic — a module brings its own Drizzle table
- * objects (`@ekklesia/module-sdk`'s `defineModuleSchema`) to each call, so there is no global
- * relational schema spanning every installed module for this type to leak.
- *
- * This is an integration boundary, not a security sandbox: modules are trusted, compiled backend
- * plugins that already run arbitrary code in this process, exactly like every other lifecycle hook
- * and HTTP handler they define. `ModuleDatabase` exists to keep a module's code Drizzle-typed and
- * decoupled from how the platform physically connects to PostgreSQL — not to defend against a
- * malicious module, which this facade cannot do and does not attempt to do.
- */
-export type ModuleDatabase = Pick<
-  NodePgDatabase,
-  | "select"
-  | "selectDistinct"
-  | "selectDistinctOn"
-  | "insert"
-  | "update"
-  | "delete"
-  | "execute"
-  | "transaction"
->;
-
 /**
  * The complete set of platform-provided services a trusted module's `start`/`stop` lifecycle hooks
- * and authorized HTTP route handlers receive — for this phase, exactly one: `database`. Frozen, and
+ * and authorized HTTP route handlers receive — for this phase, exactly one: `database`. For a
+ * module that declares `database: { abi: 1 }` it is the Module Database ABI v1 executor; for a
+ * legacy module it is Core's legacy facade, whose type Core alone owns, so this package never
+ * references an ORM (ADR 0053). Frozen, and
  * never handed to a module's `register` hook (`ModuleRegistrationContext` has no `services` field):
  * registration stays declarative and database-free, exactly as before this contract existed.
  * Deliberately has no storage, jobs, configuration, secrets, or authorization field yet — those
  * remain out of scope until a later phase explicitly adds them here, one at a time, the same way
  * `database` was added.
  */
-export interface ModuleRuntimeServices<
+export interface ModuleRuntimeServices<Database = ModuleDatabaseExecutor> {
-  Database extends ModuleDatabase | ModuleDatabaseExecutor = ModuleDatabase,
-> {
   readonly database: Database;
 }
 
-export type LegacyModuleRuntimeServices = ModuleRuntimeServices<ModuleDatabase>;
 export type ModuleDatabaseAbiRuntimeServices = ModuleRuntimeServices<ModuleDatabaseExecutor>;
-export type AnyModuleRuntimeServices =
-  | LegacyModuleRuntimeServices
-  | ModuleDatabaseAbiRuntimeServices;

packages/contracts/src/module-http.ts

@@ -2,7 +2,7 @@ import { z } from "zod";
 import { type ModuleId, type PermissionId, permissionIdSchema } from "./identifiers.js";
 import type { EkklesiaPrincipal } from "./identity.js";
 import type { ModuleConfiguration } from "./module-configuration.js";
-import type { ModuleDatabase, ModuleRuntimeServices } from "./module-database.js";
+import type { ModuleRuntimeServices } from "./module-database.js";
 import type { ModuleDatabaseExecutor } from "./module-database-abi.js";
 import type { ModuleRealtimePublisher } from "./module-realtime.js";
 import type { ModuleStorage } from "./module-storage.js";
@@ -272,9 +272,7 @@ export function moduleRoutesOverlap(
  * behavior, and uncaught-handler sanitization; permission enforcement always completes before a
  * handler — and therefore any parameter validation it performs — can run.
  */
-export interface ModuleRouteHandlerContext<
+export interface ModuleRouteHandlerContext<Database = ModuleDatabaseExecutor> {
-  Database extends ModuleDatabase | ModuleDatabaseExecutor = ModuleDatabase,
-> {
   readonly moduleId: ModuleId;
   readonly principal: EkklesiaPrincipal;
   readonly params: Readonly<Record<string, string>>;
@@ -296,9 +294,10 @@ export interface ModuleRouteHandlerContext<
 /** A framework-neutral Fetch handler: standard `Request` in, standard `Response` out. The full
  * query string remains available through `Request.url`; there is no competing query or body
  * abstraction. */
-export type ModuleRouteHandler<
+export type ModuleRouteHandler<Database = ModuleDatabaseExecutor> = (
-  Database extends ModuleDatabase | ModuleDatabaseExecutor = ModuleDatabase,
+  request: Request,
-> = (request: Request, context: ModuleRouteHandlerContext<Database>) => Awaitable<Response>;
+  context: ModuleRouteHandlerContext<Database>,
+) => Awaitable<Response>;
 
 /**
  * What a module passes to `http.route(...)` during `register`. `permission` is a plain string here
@@ -313,9 +312,7 @@ export type ModuleRouteHandler<
  * path, CORS/origin policy, authentication behavior, grant/platform-owner state, middleware, audit
  * metadata, another module's namespace, or an unprotected/no-permission route.
  */
-export interface ModuleRouteDefinitionInput<
+export interface ModuleRouteDefinitionInput<Database = ModuleDatabaseExecutor> {
-  Database extends ModuleDatabase | ModuleDatabaseExecutor = ModuleDatabase,
-> {
   readonly method: ModuleHttpMethod;
   readonly path: string;
   readonly permission: string;
@@ -331,9 +328,7 @@ export interface ModuleRouteDefinitionInput<
 
 /** The validated, canonical form of a `ModuleRouteDefinitionInput` — what `http.route` produces
  * only after every field passes its own grammar. */
-export interface ModuleRouteDefinition<
+export interface ModuleRouteDefinition<Database = ModuleDatabaseExecutor> {
-  Database extends ModuleDatabase | ModuleDatabaseExecutor = ModuleDatabase,
-> {
   readonly method: ModuleHttpMethod;
   readonly path: ModuleRoutePath;
   readonly permission: PermissionId;
@@ -346,9 +341,7 @@ export interface ModuleRouteDefinition<
 
 /** The Fetch-based registrar exposed as `context.http` during `register` only — never on
  * `ModuleRuntimeContext`, so `start`/`stop` cannot register a route after the fact. */
-export interface ModuleHttpRouteRegistrar<
+export interface ModuleHttpRouteRegistrar<Database = ModuleDatabaseExecutor> {
-  Database extends ModuleDatabase | ModuleDatabaseExecutor = ModuleDatabase,
-> {
   route(definition: ModuleRouteDefinitionInput<Database>): void;
 }
 

packages/contracts/src/module-runtime.ts

@@ -1,7 +1,7 @@
 import type { CapabilityId, ModuleId } from "./identifiers.js";
 import { moduleIdSchema } from "./identifiers.js";
 import type { ModuleConfiguration } from "./module-configuration.js";
-import type { ModuleDatabase, ModuleRuntimeServices } from "./module-database.js";
+import type { ModuleRuntimeServices } from "./module-database.js";
 import type { ModuleDatabaseExecutor } from "./module-database-abi.js";
 import type { ModuleHttpRouteRegistrar } from "./module-http.js";
 import type { ModuleRealtimeChannelRegistrar, ModuleRealtimePublisher } from "./module-realtime.js";
@@ -25,9 +25,7 @@ export interface CapabilityRegistrar extends CapabilityResolver {
   provide(capabilityId: CapabilityId, implementation: unknown): void;
 }
 
-export interface ModuleRegistrationContext<
+export interface ModuleRegistrationContext<Database = ModuleDatabaseExecutor> {
-  Database extends ModuleDatabase | ModuleDatabaseExecutor = ModuleDatabase,
-> {
   readonly capabilities: CapabilityRegistrar;
   /** Available only during `register` — never on `ModuleRuntimeContext` — so a route can only ever
    * be declared while Core is still building the immutable startup snapshot, never added or removed
@@ -52,9 +50,7 @@ export interface ModuleRegistrationContext<
  * same frozen `services` object identity as the other, for a given API runtime — never a fresh
  * `ModuleRuntimeServices` built per hook invocation. Unlike `ModuleRegistrationContext`, this never
  * carries `http`: a route can only ever be declared during `register`. */
-export interface ModuleRuntimeContext<
+export interface ModuleRuntimeContext<Database = ModuleDatabaseExecutor> {
-  Database extends ModuleDatabase | ModuleDatabaseExecutor = ModuleDatabase,
-> {
   readonly capabilities: CapabilityResolver;
   readonly moduleId: ModuleId;
   readonly services: ModuleRuntimeServices<Database>;
@@ -87,7 +83,7 @@ export interface ModuleRuntimeContext<
   readonly config: ModuleConfiguration;
 }
 
-interface ModuleRuntimeDefinitionBase<Database extends ModuleDatabase | ModuleDatabaseExecutor> {
+interface ModuleRuntimeDefinitionBase<Database> {
   readonly id: ModuleId;
   readonly register?: (context: ModuleRegistrationContext<Database>) => Awaitable<void>;
   readonly start?: (context: ModuleRuntimeContext<Database>) => Awaitable<void>;
@@ -95,7 +91,10 @@ interface ModuleRuntimeDefinitionBase<Database extends ModuleDatabase | ModuleDa
   readonly version: string;
 }
 
-export interface LegacyModuleRuntimeDefinition extends ModuleRuntimeDefinitionBase<ModuleDatabase> {
+/** A module on the legacy database facade (ADR 0016), until its deprecation window ends (ADR 0050).
+ * The facade's type is Core's own, so here its database is opaque: Core specializes `Database`. */
+export interface LegacyModuleRuntimeDefinition<Database = unknown>
+  extends ModuleRuntimeDefinitionBase<Database> {
   readonly database?: never;
 }
 

pnpm-lock.yaml

@@ -171,9 +171,6 @@ importers:
       '@types/spdx-expression-parse':
         specifier: 4.0.0
         version: 4.0.0
-      drizzle-orm:
-        specifier: 0.45.2
-        version: 0.45.2(@types/[email protected])([email protected])([email protected])
       typescript:
         specifier: 7.0.2
         version: 7.0.2

scripts/test-standalone-module.sh

@@ -79,7 +79,15 @@ if (failures.length > 0) {
 }
 EOF
 
-echo "==> Typechecking and building"
+# The published declarations must stand on their own: no package may name a module a consumer has
+# not installed (Drizzle above all), and the fixture checks every declaration it reaches.
+for project in tsconfig.json tsconfig.ui.json; do
+  (cd "$module" && ./node_modules/.bin/tsc --showConfig --project "$project") |
+    node -e 'const c = JSON.parse(require("fs").readFileSync(0, "utf8")); if (c.compilerOptions.skipLibCheck !== false) process.exit(1);' ||
+    fail "$project does not typecheck with skipLibCheck: false"
+done
+
+echo "==> Typechecking (skipLibCheck: false) and building"
 (cd "$module" && pnpm run typecheck && pnpm run build) >"$work/build.log" 2>&1 ||
   { tail -40 "$work/build.log" >&2; fail "typecheck or build"; }
 

tests/fixtures/standalone-module/tsconfig.json

@@ -1,7 +1,11 @@
 {
   "extends": "@ekklesia/typescript-config/node.json",
   "compilerOptions": {
-    "noEmit": true
+    "noEmit": true,
+    "skipLibCheck": false
   },
-  "include": ["src/server/**/*.ts", "src/schema/**/*.ts"]
+  "include": [
+    "src/server/**/*.ts",
+    "src/schema/**/*.ts"
+  ]
 }

tests/fixtures/standalone-module/tsconfig.ui.json

@@ -2,7 +2,10 @@
   "extends": "@ekklesia/typescript-config/browser-react.json",
   "compilerOptions": {
     "noEmit": true,
-    "types": []
+    "types": [],
+    "skipLibCheck": false
   },
-  "include": ["src/ui/**/*.tsx"]
+  "include": [
+    "src/ui/**/*.tsx"
+  ]
 }

tests/public-packages.test.ts

@@ -28,6 +28,7 @@ type Manifest = Record<string, unknown> & {
   peerDependencies?: Record<string, string>;
   peerDependenciesMeta?: Record<string, { optional?: boolean }>;
   optionalDependencies?: Record<string, string>;
+  devDependencies?: Record<string, string>;
   ekklesia?: Record<string, unknown>;
   files?: string[];
 };
@@ -163,14 +164,21 @@ describe("the curated Module SDK", () => {
     }
     const contractsSource = path.join(repositoryRoot, "packages/contracts/src");
     for (const file of await readdir(contractsSource)) {
-      // Only types: Core alone validates the legacy Drizzle schema definition, with its own Drizzle.
+      // Not even a type: the legacy facade's Drizzle type and schema validator are Core's own, so no
+      // declaration a consumer type-checks names Drizzle.
       const source = await readFile(path.join(contractsSource, file), "utf8");
-      for (const line of source.split("\n").filter((text) => /from\s+"drizzle-orm/u.test(text))) {
+      expect(source, file).not.toMatch(/from\s+"drizzle-orm|import\(\s*"drizzle-orm/u);
-        expect(line, file).toMatch(/^import type /u);
-      }
     }
     const contracts = await readJson("packages/contracts/package.json");
     expect(Object.keys(contracts.exports as object)).toEqual([".", "./module-package"]);
+    for (const field of [
+      "dependencies",
+      "peerDependencies",
+      "optionalDependencies",
+      "devDependencies",
+    ] as const) {
+      expect(contracts[field]?.["drizzle-orm"], field).toBeUndefined();
+    }
   });
 });
 
@@ -190,6 +198,16 @@ describe("module authors' dependencies", () => {
     expect(guide).toContain("`@ekklesia/contracts` is not a direct dependency.");
   });
 
+  it("type-check every published declaration in the standalone fixture", async () => {
+    // skipLibCheck would hide a declaration naming a package the module never installed.
+    for (const project of ["tsconfig.json", "tsconfig.ui.json"]) {
+      const config = await readJson<{ compilerOptions: { skipLibCheck?: boolean } }>(
+        `tests/fixtures/standalone-module/${project}`,
+      );
+      expect(config.compilerOptions.skipLibCheck, project).toBe(false);
+    }
+  });
+
   it("pin module-pack exactly and declare engines.node in the standalone fixture", async () => {
     const fixture = await readJson("tests/fixtures/standalone-module/package.json");
     const devDependencies = fixture.devDependencies as Record<string, string>;