3 files changed, 53 insertions, 0 deletions
diff --git a/web/core/package.json b/web/core/package.json
new file mode 100644
index 0000000..ca4db41
--- /dev/null
+++ b/web/core/package.json
@@ -0,0 +1,28 @@
+{
+  "name": "@tidyindex/core",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "exports": {
+    ".": "./src/index.ts",
+    "./db": "./src/db/client.ts",
+    "./schema": "./src/db/schema.ts",
+    "./keys": "./src/keys.ts",
+    "./auth": "./src/auth.ts",
+    "./usage": "./src/usage.ts",
+    "./plans": "./src/plans.ts",
+    "./accounts": "./src/accounts.ts",
+    "./crypto": "./src/crypto.ts"
+  },
+  "scripts": {
+    "check": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@neondatabase/serverless": "^0.9.5",
+    "drizzle-orm": "^0.33.0",
+    "jose": "^5.9.0"
+  },
+  "devDependencies": {
+    "typescript": "^5.6.0"
+  }
+}
diff --git a/web/core/src/index.ts b/web/core/src/index.ts
new file mode 100644
index 0000000..5e965e9
--- /dev/null
+++ b/web/core/src/index.ts
@@ -0,0 +1,15 @@
+// @tidyindex/core — shared, platform-agnostic domain code for the
+// SvelteKit UI (web/ui) and the Hono API (web/api).
+//
+// Rules of the road:
+//   - No imports from SvelteKit, Vite, Workers, Node-only modules, or
+//     anything platform-specific. Pass platform values in as arguments.
+//   - Use Web Crypto (./crypto), not node:crypto.
+//   - No module-level state. Functions take a Db (or other context) as
+//     their first argument.
+//
+// Real submodules will be added in subsequent passes (db, keys, auth,
+// usage, plans, accounts). For now this barrel just exists so the
+// workspace wires together.
+
+export const CORE_VERSION = '0.0.0';
diff --git a/web/core/tsconfig.json b/web/core/tsconfig.json
new file mode 100644
index 0000000..9717b38
--- /dev/null
+++ b/web/core/tsconfig.json
@@ -0,0 +1,10 @@
+{
+  "extends": "../tsconfig.base.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist",
+    "lib": ["ES2022", "DOM"],
+    "noEmit": true
+  },
+  "include": ["src/**/*.ts"]
+}