diff --git a/package.json b/package.json
index 8c39dc6..683ac69 100644
--- a/package.json
+++ b/package.json
@@ -9,12 +9,12 @@
   "scripts": {
     "demo": "tsx scripts/demo.ts",
     "dev": "pnpm --parallel --filter @keyring/server --filter @keyring/web dev",
-    "build": "pnpm -r run build",
+    "build": "tsc -b --pretty false && pnpm --filter @keyring/web run build",
     "test": "vitest run",
     "test:watch": "vitest",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
-    "typecheck": "pnpm -r run typecheck",
+    "typecheck": "tsc -b --pretty false && pnpm --filter @keyring/web exec tsc -p tsconfig.json --noEmit",
     "format": "prettier --write .",
     "format:check": "prettier --check .",
     "db:migrate": "pnpm --filter @keyring/server db:migrate",
diff --git a/packages/connectors/package.json b/packages/connectors/package.json
index 7d5cf6f..dddbd57 100644
--- a/packages/connectors/package.json
+++ b/packages/connectors/package.json
@@ -13,8 +13,8 @@
   "types": "./dist/index.d.ts",
   "files": ["dist", "fixtures"],
   "scripts": {
-    "build": "tsc -p tsconfig.json",
-    "typecheck": "tsc -p tsconfig.json --noEmit"
+    "build": "tsc -b tsconfig.json --pretty false",
+    "typecheck": "tsc -b tsconfig.json --pretty false"
   },
   "dependencies": {
     "@keyring/core": "workspace:*"
diff --git a/packages/connectors/src/github/connector.ts b/packages/connectors/src/github/connector.ts
index be71181..93a8777 100644
--- a/packages/connectors/src/github/connector.ts
+++ b/packages/connectors/src/github/connector.ts
@@ -432,12 +432,14 @@ export function createGitHubConnector(options: GitHubConnectorOptions): Connecto
         return { ok: false, error: "not a github grant" };
       }
 
-      const login = grant.principal.identifiers.find((i) => i.kind === "username")?.value;
+      const login = grant.principal.identifiers.find(
+        (i: Identifier) => i.kind === "username",
+      )?.value;
       const resourceId = String(grant.resource.id);
       const teamMatch = resourceId.match(/^([^/]+)\/team:(.+)$/);
       const patMatch = resourceId.match(/^([^/]+)\/pat:(.+)$/);
       const deployKeyId = grant.principal.identifiers.find(
-        (i) => i.kind === "key_id" && i.source === "github_deploy_keys",
+        (i: Identifier) => i.kind === "key_id" && i.source === "github_deploy_keys",
       )?.value;
 
       // --- Team membership ---
diff --git a/packages/connectors/src/google-workspace/connector.ts b/packages/connectors/src/google-workspace/connector.ts
index ec795c9..8fbe02e 100644
--- a/packages/connectors/src/google-workspace/connector.ts
+++ b/packages/connectors/src/google-workspace/connector.ts
@@ -1,4 +1,4 @@
-import { createGrant, type Grant } from "@keyring/core";
+import { createGrant, type Grant, type Identifier } from "@keyring/core";
 
 import { asArray, asObject, callJson, paginateTokens } from "../mcp/paginate.js";
 import { McpToolError, type McpToolCaller } from "../mcp/types.js";
@@ -374,7 +374,8 @@ export function createGoogleWorkspaceConnector(
         return { ok: false, error: "not a google_workspace grant" };
       }
       const email = grant.principal.identifiers.find(
-        (i) => i.kind === "work_email" || i.kind === "personal_email",
+        (i: Identifier) =>
+          i.kind === "work_email" || i.kind === "personal_email",
       )?.value;
       if (!email) return { ok: false, error: "missing email identifier" };
 
diff --git a/packages/connectors/tsconfig.json b/packages/connectors/tsconfig.json
index 7b02c75..4cf982e 100644
--- a/packages/connectors/tsconfig.json
+++ b/packages/connectors/tsconfig.json
@@ -1,9 +1,11 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "composite": true,
     "outDir": "dist",
     "rootDir": "src"
   },
   "include": ["src/**/*"],
-  "exclude": ["src/**/*.test.ts"]
+  "exclude": ["src/**/*.test.ts"],
+  "references": [{ "path": "../core" }]
 }
diff --git a/packages/core/package.json b/packages/core/package.json
index 5e275cd..244dde7 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -13,8 +13,8 @@
   "types": "./dist/index.d.ts",
   "files": ["dist"],
   "scripts": {
-    "build": "tsc -p tsconfig.json",
-    "typecheck": "tsc -p tsconfig.json --noEmit",
+    "build": "tsc -b tsconfig.json --pretty false",
+    "typecheck": "tsc -b tsconfig.json --pretty false",
     "reconcile": "node dist/identity/cli.js"
   },
   "bin": {
diff --git a/packages/core/tsconfig.json b/packages/core/tsconfig.json
index 7b02c75..9889060 100644
--- a/packages/core/tsconfig.json
+++ b/packages/core/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "composite": true,
     "outDir": "dist",
     "rootDir": "src"
   },
diff --git a/packages/server/package.json b/packages/server/package.json
index 8e01843..6a992a1 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -21,8 +21,8 @@
   ],
   "scripts": {
     "dev": "tsx watch src/index.ts",
-    "build": "tsc -p tsconfig.json",
-    "typecheck": "tsc -p tsconfig.json --noEmit",
+    "build": "tsc -b tsconfig.json --pretty false",
+    "typecheck": "tsc -b tsconfig.json --pretty false",
     "start": "node dist/index.js",
     "db:generate": "drizzle-kit generate",
     "db:migrate": "tsx src/db/migrate-cli.ts"
diff --git a/packages/server/src/db/audit-append-only.test.ts b/packages/server/src/db/audit-append-only.test.ts
index b0019a4..cc6dcc7 100644
--- a/packages/server/src/db/audit-append-only.test.ts
+++ b/packages/server/src/db/audit-append-only.test.ts
@@ -2,7 +2,7 @@ import {
   appendAuditRecord,
   asApprovalCardId,
 } from "@keyring/core";
-import { sql } from "drizzle-orm";
+import { inArray, sql } from "drizzle-orm";
 import { afterAll, beforeAll, describe, expect, it } from "vitest";
 
 import type { AppDb } from "./client.js";
@@ -110,4 +110,58 @@ describe("audit_records append-only", () => {
     expect(after.ok).toBe(true);
     expect(after.count).toBe(before.count + 10);
   });
+
+  it("restores the timestamp default after concurrent identical-time appends", async () => {
+    const recordedAt = "2026-08-29T23:00:00.000Z";
+
+    try {
+      await db.execute(
+        sql`ALTER TABLE audit_records ALTER COLUMN recorded_at SET DEFAULT '2026-08-29T23:00:00.000Z'::timestamptz`,
+      );
+
+      const appended = await Promise.all(
+        Array.from({ length: 20 }, (_, i) =>
+          appendChainedAudit(db, {
+            cardId: asApprovalCardId(
+              `card-identical-recorded-at-${i}-${crypto.randomUUID()}`,
+            ),
+            action: "approve",
+            approvedBy: "judge@acme.com",
+            approvedAt: new Date(recordedAt),
+            executedAt: new Date(recordedAt),
+            result: "success",
+            evidenceSnapshot: evidence,
+          }),
+        ),
+      );
+
+      const appendedRows = await db
+        .select({
+          id: auditRecords.id,
+          recordedAt: auditRecords.recordedAt,
+        })
+        .from(auditRecords)
+        .where(
+          inArray(
+            auditRecords.id,
+            appended.map((record) => record.id),
+          ),
+        );
+      expect(appendedRows).toHaveLength(20);
+      expect(
+        new Set(appendedRows.map((row) => row.recordedAt.toISOString())),
+      ).toEqual(new Set([recordedAt]));
+
+      const allRows = await db
+        .select({ prevHash: auditRecords.prevHash })
+        .from(auditRecords);
+      const prevHashes = allRows.map((row) => row.prevHash);
+      expect(new Set(prevHashes).size).toBe(prevHashes.length);
+      expect((await verifyStoredAuditChain(db)).ok).toBe(true);
+    } finally {
+      await db.execute(
+        sql`ALTER TABLE audit_records ALTER COLUMN recorded_at SET DEFAULT now()`,
+      );
+    }
+  });
 });
diff --git a/packages/server/tsconfig.json b/packages/server/tsconfig.json
index 7b02c75..4f1515e 100644
--- a/packages/server/tsconfig.json
+++ b/packages/server/tsconfig.json
@@ -1,9 +1,11 @@
 {
   "extends": "../../tsconfig.base.json",
   "compilerOptions": {
+    "composite": true,
     "outDir": "dist",
     "rootDir": "src"
   },
   "include": ["src/**/*"],
-  "exclude": ["src/**/*.test.ts"]
+  "exclude": ["src/**/*.test.ts"],
+  "references": [{ "path": "../core" }, { "path": "../connectors" }]
 }
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..2b884fa
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,8 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./packages/core" },
+    { "path": "./packages/connectors" },
+    { "path": "./packages/server" }
+  ]
+}