From 8382f58bdefcabab394eb6c72f95e526da41e63b Mon Sep 17 00:00:00 2001
From: Tobbe Lundberg <tobbe@tlundberg.com>
Date: Fri, 2 Jan 2026 10:23:47 +0100
Subject: [PATCH 1/2] feat(cli): Experimental flag to enable shared packages

---
 .../generate/package/packageHandler.js         | 18 ++++++++++++++++++
 .../src/__tests__/config.test.ts               |  3 +++
 packages/project-config/src/config.ts          |  6 ++++++
 3 files changed, 27 insertions(+)

diff --git a/packages/cli/src/commands/generate/package/packageHandler.js b/packages/cli/src/commands/generate/package/packageHandler.js
index a10edd9c82..55343311fe 100644
--- a/packages/cli/src/commands/generate/package/packageHandler.js
+++ b/packages/cli/src/commands/generate/package/packageHandler.js
@@ -4,8 +4,10 @@ import path from 'node:path'
 import { paramCase, camelCase } from 'change-case'
 import execa from 'execa'
 import { Listr } from 'listr2'
+import { terminalLink } from 'termi-link'
 
 import { recordTelemetryAttributes } from '@cedarjs/cli-helpers'
+import { getConfig } from '@cedarjs/project-config'
 import { errorTelemetry } from '@cedarjs/telemetry'
 
 import c from '../../../lib/colors.js'
@@ -120,6 +122,22 @@ export const handler = async ({ name, force, ...rest }) => {
     )
   }
 
+  if (!getConfig().experimental.packagesWorkspace.enabled) {
+    const releaseNotes = terminalLink(
+      'release notes',
+      'https://github.com/cedarjs/cedar/releases',
+    )
+
+    console.error(
+      'This is an experimental feature. Please enable it in your ' +
+        'redwood.toml file and then run this command again.',
+    )
+    console.error()
+    console.error(`See the ${releaseNotes} for instructions on how to enable.`)
+
+    return
+  }
+
   let packageFiles = {}
   const tasks = new Listr(
     /** @type {import('listr2').ListrTask<ListrContext>[]} */ ([
diff --git a/packages/project-config/src/__tests__/config.test.ts b/packages/project-config/src/__tests__/config.test.ts
index 87f11e20db..22787f4467 100644
--- a/packages/project-config/src/__tests__/config.test.ts
+++ b/packages/project-config/src/__tests__/config.test.ts
@@ -74,6 +74,9 @@ describe('getConfig', () => {
             "enabled": false,
           },
           "useSDLCodeGenForGraphQLTypes": false,
+          "packagesWorkspace": {
+            "enabled": false,
+          },
         },
         "generate": {
           "nestScaffoldByModel": true,
diff --git a/packages/project-config/src/config.ts b/packages/project-config/src/config.ts
index 97c057c9e8..927cd2c73c 100644
--- a/packages/project-config/src/config.ts
+++ b/packages/project-config/src/config.ts
@@ -119,6 +119,9 @@ export interface Config {
       enabled: boolean
       lintOnly: boolean
     }
+    packagesWorkspace: {
+      enabled: boolean
+    }
   }
   eslintLegacyConfigWarning: boolean
 }
@@ -206,6 +209,9 @@ export const DEFAULT_CONFIG: Config = {
       enabled: false,
       lintOnly: false,
     },
+    packagesWorkspace: {
+      enabled: false,
+    },
   },
   eslintLegacyConfigWarning: true,
 }

From 8685a764805c5109db5067dc1178f6ba6a6b2a19 Mon Sep 17 00:00:00 2001
From: Tobbe Lundberg <tobbe@tlundberg.com>
Date: Fri, 2 Jan 2026 10:44:05 +0100
Subject: [PATCH 2/2] fix project-config test

---
 packages/project-config/src/__tests__/config.test.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/project-config/src/__tests__/config.test.ts b/packages/project-config/src/__tests__/config.test.ts
index 22787f4467..48c7947a83 100644
--- a/packages/project-config/src/__tests__/config.test.ts
+++ b/packages/project-config/src/__tests__/config.test.ts
@@ -60,6 +60,9 @@ describe('getConfig', () => {
             "enabled": false,
             "wrapApi": true,
           },
+          "packagesWorkspace": {
+            "enabled": false,
+          },
           "reactCompiler": {
             "enabled": false,
             "lintOnly": false,
@@ -74,9 +77,6 @@ describe('getConfig', () => {
             "enabled": false,
           },
           "useSDLCodeGenForGraphQLTypes": false,
-          "packagesWorkspace": {
-            "enabled": false,
-          },
         },
         "generate": {
           "nestScaffoldByModel": true,