build: use yarn v4

.github/workflows/test.yml

@@ -34,7 +34,7 @@ jobs:
           node-version: "${{ matrix.node-version }}"
           cache: "yarn"
       - name: Install dependencies
-        run: yarn install --frozen-lockfile
+        run: yarn install --immutable
       - name: Build
         run: yarn build
       - name: Test

.gitignore

@@ -105,4 +105,6 @@ self-signed-cert.pem
 self-signed-key.pem
 *.mcpb
 invalid-json.json
-**/server/lib/**
+**/server/lib/**
+
+.yarn/install-state.gz

.yarnrc.yml

@@ -0,0 +1,3 @@
+nodeLinker: node-modules
+
+yarnPath: .yarn/releases/yarn-4.10.3.cjs

README.md

@@ -141,13 +141,13 @@ git clone https://github.com/anthropics/mcpb.git
 cd mcpb
 
 # Install dependencies
-npm install
+yarn
 
 # Build the project
-npm run build
+yarn build
 
 # Run tests
-npm test
+yarn test
 ```
 
 ## Release Process

package.json

@@ -28,9 +28,7 @@
       "require": "./dist/cli.js"
     }
   },
-  "bin": {
-    "mcpb": "dist/cli/cli.js"
-  },
+  "bin": "dist/cli/cli.js",
   "files": [
     "dist"
   ],
@@ -79,5 +77,5 @@
     "@babel/helpers": "7.27.1",
     "@babel/parser": "7.27.3"
   },
-  "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
-}
+  "packageManager": "yarn@4.10.3+sha512.c38cafb5c7bb273f3926d04e55e1d8c9dfa7d9c3ea1f36a4868fa028b9e5f72298f0b7f401ad5eb921749eb012eb1c3bb74bf7503df3ee43fd600d14a018266f"
+}