diff --git a/package.json b/package.json
index 74c72b5..39b1823 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "@openrouter/agent",
   "version": "0.1.0",
   "author": "OpenRouter",
-  "description": "Agent toolkit for building AI applications with OpenRouter — tool orchestration, streaming, multi-turn conversations, and format compatibility.",
+  "description": "Agent toolkit for building AI applications with OpenRouter \u2014 tool orchestration, streaming, multi-turn conversations, and format compatibility.",
   "keywords": [
     "openrouter",
     "agent",
@@ -18,87 +18,70 @@
   "main": "./esm/index.js",
   "exports": {
     ".": {
-      "source": "./src/index.ts",
       "types": "./esm/index.d.ts",
       "default": "./esm/index.js"
     },
     "./call-model": {
-      "source": "./src/inner-loop/call-model.ts",
       "types": "./esm/inner-loop/call-model.d.ts",
       "default": "./esm/inner-loop/call-model.js"
     },
     "./tool-types": {
-      "source": "./src/lib/tool-types.ts",
       "types": "./esm/lib/tool-types.d.ts",
       "default": "./esm/lib/tool-types.js"
     },
     "./model-result": {
-      "source": "./src/lib/model-result.ts",
       "types": "./esm/lib/model-result.d.ts",
       "default": "./esm/lib/model-result.js"
     },
     "./async-params": {
-      "source": "./src/lib/async-params.ts",
       "types": "./esm/lib/async-params.d.ts",
       "default": "./esm/lib/async-params.js"
     },
     "./stop-conditions": {
-      "source": "./src/lib/stop-conditions.ts",
       "types": "./esm/lib/stop-conditions.d.ts",
       "default": "./esm/lib/stop-conditions.js"
     },
     "./tool": {
-      "source": "./src/lib/tool.ts",
       "types": "./esm/lib/tool.d.ts",
       "default": "./esm/lib/tool.js"
     },
     "./anthropic-compat": {
-      "source": "./src/lib/anthropic-compat.ts",
       "types": "./esm/lib/anthropic-compat.d.ts",
       "default": "./esm/lib/anthropic-compat.js"
     },
     "./chat-compat": {
-      "source": "./src/lib/chat-compat.ts",
       "types": "./esm/lib/chat-compat.d.ts",
       "default": "./esm/lib/chat-compat.js"
     },
     "./claude-constants": {
-      "source": "./src/lib/claude-constants.ts",
       "types": "./esm/lib/claude-constants.d.ts",
       "default": "./esm/lib/claude-constants.js"
     },
     "./claude-type-guards": {
-      "source": "./src/lib/claude-type-guards.ts",
       "types": "./esm/lib/claude-type-guards.d.ts",
       "default": "./esm/lib/claude-type-guards.js"
     },
     "./conversation-state": {
-      "source": "./src/lib/conversation-state.ts",
       "types": "./esm/lib/conversation-state.d.ts",
       "default": "./esm/lib/conversation-state.js"
     },
     "./next-turn-params": {
-      "source": "./src/lib/next-turn-params.ts",
       "types": "./esm/lib/next-turn-params.d.ts",
       "default": "./esm/lib/next-turn-params.js"
     },
     "./stream-transformers": {
-      "source": "./src/lib/stream-transformers.ts",
       "types": "./esm/lib/stream-transformers.d.ts",
       "default": "./esm/lib/stream-transformers.js"
     },
     "./tool-context": {
-      "source": "./src/lib/tool-context.ts",
       "types": "./esm/lib/tool-context.d.ts",
       "default": "./esm/lib/tool-context.js"
     },
     "./tool-event-broadcaster": {
-      "source": "./src/lib/tool-event-broadcaster.ts",
       "types": "./esm/lib/tool-event-broadcaster.d.ts",
       "default": "./esm/lib/tool-event-broadcaster.js"
     },
     "./turn-context": {
-      "source": "./src/lib/turn-context.ts",
       "types": "./esm/lib/turn-context.d.ts",
       "default": "./esm/lib/turn-context.js"
     },
@@ -122,10 +105,11 @@
     "test:e2e": "vitest --run --project e2e",
     "test:watch": "vitest --watch --project unit",
     "typecheck": "tsc --noEmit",
-    "compile": "tsc"
+    "compile": "tsc",
+    "prepare": "npm run build"
   },
   "dependencies": {
-    "@openrouter/sdk": "latest",
+    "@openrouter/sdk": "git+https://github.com/OpenRouterTeam/typescript-sdk.git#add-prepare-script",
     "zod": "^4.0.0"
   },
   "devDependencies": {
@@ -139,5 +123,11 @@
     "typescript": "~5.8.3",
     "typescript-eslint": "^8.26.0",
     "vitest": "^3.2.4"
+  },
+  "pnpm": {
+    "onlyBuiltDependencies": [
+      "@openrouter/sdk",
+      "esbuild"
+    ]
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 089bf47..22e468e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -9,8 +9,8 @@ importers:
   .:
     dependencies:
       '@openrouter/sdk':
-        specifier: latest
-        version: 0.10.2
+        specifier: git+https://github.com/OpenRouterTeam/typescript-sdk.git#add-prepare-script
+        version: https://codeload.github.com/OpenRouterTeam/typescript-sdk/tar.gz/b08f491543b86ad9b8bbb44057fdf09db7cf339d
       zod:
         specifier: ^4.0.0
         version: 4.3.6
@@ -353,8 +353,9 @@ packages:
     resolution: {integrity: sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg==}
     engines: {node: '>= 8'}
 
-  '@openrouter/sdk@0.10.2':
-    resolution: {integrity: sha512-od0aWkk+vhndEI78YyPvPgMxv2+32KO4MRrk8lFxro/YABKAHkozXugc+x3YeNf/d9KQaBO6M4Rut1uf+yeD2g==}
+  '@openrouter/sdk@https://codeload.github.com/OpenRouterTeam/typescript-sdk/tar.gz/b08f491543b86ad9b8bbb44057fdf09db7cf339d':
+    resolution: {tarball: https://codeload.github.com/OpenRouterTeam/typescript-sdk/tar.gz/b08f491543b86ad9b8bbb44057fdf09db7cf339d}
+    version: 0.10.1
 
   '@rollup/rollup-android-arm-eabi@4.60.1':
     resolution: {integrity: sha512-d6FinEBLdIiK+1uACUttJKfgZREXrF0Qc2SmLII7W2AD8FfiZ9Wjd+rD/iRuf5s5dWrr1GgwXCvPqOuDquOowA==}
@@ -1705,7 +1706,7 @@ snapshots:
       '@nodelib/fs.scandir': 2.1.5
       fastq: 1.20.1
 
-  '@openrouter/sdk@0.10.2':
+  '@openrouter/sdk@https://codeload.github.com/OpenRouterTeam/typescript-sdk/tar.gz/b08f491543b86ad9b8bbb44057fdf09db7cf339d':
     dependencies:
       zod: 4.3.6