From a9c8810f4c5e52a34fa5590925cf469b863cdfc2 Mon Sep 17 00:00:00 2001
From: Tim McMackin <tim.mcmackin@webflow.com>
Date: Wed, 15 Apr 2026 10:19:28 -0400
Subject: [PATCH 01/11] Window size large

---
 src/main.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main.jsx b/src/main.jsx
index cd9d814..d7d3c41 100644
--- a/src/main.jsx
+++ b/src/main.jsx
@@ -36,7 +36,7 @@ const App = () => {
 
   useEffect(() => {
     // Set initial size
-    webflow.setExtensionSize({ height: 425, width: 500 })
+    webflow.setExtensionSize('large')
   }, [])
 
   // Auto-initialize first example and function

From 04e1950213257c3c2181d021abbb1346218b15c6 Mon Sep 17 00:00:00 2001
From: Tim McMackin <tim.mcmackin@webflow.com>
Date: Wed, 15 Apr 2026 10:27:33 -0400
Subject: [PATCH 02/11] Prompt UI mockup

---
 src/components/Playground.tsx | 180 ++++++++++++++++++++++------------
 1 file changed, 115 insertions(+), 65 deletions(-)

diff --git a/src/components/Playground.tsx b/src/components/Playground.tsx
index a8fbf5b..eed1d71 100644
--- a/src/components/Playground.tsx
+++ b/src/components/Playground.tsx
@@ -50,6 +50,11 @@ const Playground: React.FC = () => {
   const [language, setLanguage] = useState<'javascript' | 'typescript'>(
     'javascript',
   )
+  const [prompt, setPrompt] = useState('')
+
+  const sendPromptToAgent = (text: string) => {
+    console.log(text)
+  }
   const monaco = useMonaco()
   const editorRef = useRef<any>(null)
   const codeRef = useRef(code)
@@ -430,94 +435,139 @@ const Playground: React.FC = () => {
           }}
         />
       </div>
-      <div style={{ marginBottom: 8, position: 'relative' }}>
+      <div style={{ marginBottom: 8, display: 'flex', justifyContent: 'flex-end' }}>
         <button
           onClick={() => runCode(codeRef.current)}
           disabled={isRunning}
           className="button cc-primary"
-          style={{
-            position: 'absolute',
-            right: 16,
-            bottom: 16,
-          }}
         >
           {isRunning ? 'Running...' : 'Run'}
         </button>
       </div>
       <div
         style={{
-          opacity: output ? 1 : 0,
-          height: output ? 'auto' : 0,
+          background: '#181818',
+          borderRadius: 4,
+          marginBottom: 8,
           overflow: 'hidden',
-          transition: 'opacity 0.2s ease-in-out',
-          padding: '0 16px 16px',
-          position: 'relative',
         }}
       >
         <div
           style={{
-            position: 'absolute',
-            top: 10,
-            right: 24,
-            zIndex: 10,
             display: 'flex',
-            gap: 8,
+            alignItems: 'center',
+            padding: '8px 12px',
+            borderBottom: '1px solid #282a2e',
+            background: '#1e1e1e',
           }}
         >
-          <button
-            onClick={async () => {
-              try {
-                await navigator.clipboard.writeText(output)
-              } catch {
-                const ta = document.createElement("textarea")
-                ta.value = output
-                ta.style.position = "fixed"
-                ta.style.left = "-9999px"
-                document.body.appendChild(ta)
-                ta.select()
-                document.execCommand("copy")
-                document.body.removeChild(ta)
-              }
-              setIsCopied(true)
-              setTimeout(() => setIsCopied(false), 2000)
-            }}
-            title="Copy to clipboard"
-            style={{
-              background: 'none',
-              border: 'none',
-              color: 'rgb(255 255 255 / 0.6)',
-              cursor: 'pointer',
-              padding: 4,
-            }}
-          >
-            {isCopied ? 'Copied!' : <ClipboardIcon />}
-          </button>
-          <button
-            onClick={() => setOutput('')}
-            title="Clear output"
-            style={{
-              background: 'none',
-              border: 'none',
-              color: 'rgb(255 255 255 / 0.6)',
-              cursor: 'pointer',
-              padding: 4,
-            }}
+          <label
+            htmlFor="agent-prompt"
+            style={{ fontSize: 11, color: 'rgb(255 255 255 / 0.5)' }}
           >
-            <ClearIcon />
-          </button>
+            Prompt
+          </label>
         </div>
-        <label
+        <input
+          id="agent-prompt"
+          type="text"
+          value={prompt}
+          onChange={(e) => setPrompt(e.target.value)}
+          onKeyDown={(e) => {
+            if (e.key === 'Enter') {
+              const value = e.currentTarget.value.trim()
+              if (value) {
+                sendPromptToAgent(value)
+                setPrompt('')
+              }
+            }
+          }}
+          placeholder="Type a prompt and press Enter"
+          style={{
+            width: '100%',
+            boxSizing: 'border-box',
+            background: '#181818',
+            border: 'none',
+            color: 'rgb(255 255 255 / 0.9)',
+            fontSize: 11,
+            padding: '10px 12px',
+            outline: 'none',
+            fontFamily:
+              'ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace',
+          }}
+        />
+      </div>
+      <div
+        style={{
+          opacity: output ? 1 : 0,
+          height: output ? 'auto' : 0,
+          overflow: 'hidden',
+          transition: 'opacity 0.2s ease-in-out',
+          background: '#181818',
+          borderRadius: 4,
+          marginBottom: 8,
+        }}
+      >
+        <div
           style={{
-            fontWeight: 500,
-            fontSize: 13,
-            color: 'rgb(255 255 255 / 0.6)',
-            display: 'block',
-            marginBottom: 4,
+            display: 'flex',
+            alignItems: 'center',
+            justifyContent: 'space-between',
+            padding: '8px 12px',
+            borderBottom: '1px solid #282a2e',
+            background: '#1e1e1e',
           }}
         >
-          Output
-        </label>
-        <CodeBlock code={output || ' '} language="javascript" />
+          <div style={{ fontSize: 11, color: 'rgb(255 255 255 / 0.5)' }}>
+            Output
+          </div>
+          <div style={{ display: 'flex', gap: 8 }}>
+            <button
+              onClick={async () => {
+                try {
+                  await navigator.clipboard.writeText(output)
+                } catch {
+                  const ta = document.createElement('textarea')
+                  ta.value = output
+                  ta.style.position = 'fixed'
+                  ta.style.left = '-9999px'
+                  document.body.appendChild(ta)
+                  ta.select()
+                  document.execCommand('copy')
+                  document.body.removeChild(ta)
+                }
+                setIsCopied(true)
+                setTimeout(() => setIsCopied(false), 2000)
+              }}
+              title="Copy to clipboard"
+              style={{
+                background: 'none',
+                border: 'none',
+                color: 'rgb(255 255 255 / 0.6)',
+                cursor: 'pointer',
+                padding: 4,
+              }}
+            >
+              {isCopied ? 'Copied!' : <ClipboardIcon />}
+            </button>
+            <button
+              onClick={() => setOutput('')}
+              title="Clear output"
+              style={{
+                background: 'none',
+                border: 'none',
+                color: 'rgb(255 255 255 / 0.6)',
+                cursor: 'pointer',
+                padding: 4,
+              }}
+            >
+              <ClearIcon />
+            </button>
+          </div>
+        </div>
+        <div style={{ padding: 12 }}>
+          <CodeBlock code={output || ' '} language="javascript" />
+        </div>
       </div>
     </div>
   )

From dd38d04b4bdb851e0eaf5f74316a50b6f8dd963f Mon Sep 17 00:00:00 2001
From: Tim McMackin <tim.mcmackin@webflow.com>
Date: Wed, 15 Apr 2026 11:54:56 -0400
Subject: [PATCH 03/11] Not sure if this works b/c claude is down (#2)

---
 .env.example                  |  1 +
 src/components/Playground.tsx | 46 +++++++++++++++++++++++++++++++++--
 src/declarations.d.ts         |  8 ++++++
 3 files changed, 53 insertions(+), 2 deletions(-)
 create mode 100644 .env.example

diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..d2ab18d
--- /dev/null
+++ b/.env.example
@@ -0,0 +1 @@
+VITE_ANTHROPIC_API_KEY=
diff --git a/src/components/Playground.tsx b/src/components/Playground.tsx
index eed1d71..f7eb1eb 100644
--- a/src/components/Playground.tsx
+++ b/src/components/Playground.tsx
@@ -52,8 +52,50 @@ const Playground: React.FC = () => {
   )
   const [prompt, setPrompt] = useState('')
 
-  const sendPromptToAgent = (text: string) => {
-    console.log(text)
+  const sendPromptToAgent = async (text: string) => {
+    const apiKey = import.meta.env.VITE_ANTHROPIC_API_KEY
+    if (!apiKey) {
+      console.error('VITE_ANTHROPIC_API_KEY is not set')
+      return
+    }
+    const currentCode = codeRef.current
+
+    const userMessage = `Here is the current code in the playground editor:
+
+\`\`\`javascript
+${currentCode}
+\`\`\`
+
+Make the following changes to this code: ${text}`
+
+    try {
+      const response = await fetch('https://api.anthropic.com/v1/messages', {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+          'x-api-key': apiKey,
+          'anthropic-version': '2023-06-01',
+          'anthropic-dangerous-direct-browser-access': 'true',
+        },
+        body: JSON.stringify({
+          model: 'claude-sonnet-4-6',
+          max_tokens: 4096,
+          system:
+            'You are a coding assistant that helps users write and modify Webflow Designer API code. When asked to make changes to code, return only the modified code without any explanation or markdown code fences.',
+          messages: [{ role: 'user', content: userMessage }],
+        }),
+      })
+
+      const data = await response.json()
+      const result = (data.content?.[0]?.text ?? '') as string
+      if (result) {
+        setCode(result)
+        codeRef.current = result
+        editorRef.current?.setValue(result)
+      }
+    } catch (err) {
+      console.error(err)
+    }
   }
   const monaco = useMonaco()
   const editorRef = useRef<any>(null)
diff --git a/src/declarations.d.ts b/src/declarations.d.ts
index ea8347b..bb832c8 100644
--- a/src/declarations.d.ts
+++ b/src/declarations.d.ts
@@ -2,3 +2,11 @@ declare module '*.d.ts?raw' {
   const content: string
   export default content
 }
+
+interface ImportMetaEnv {
+  readonly VITE_ANTHROPIC_API_KEY: string
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv
+}

From 0f425386f9a7a0429f74aee1a7cda1dbefe43ef6 Mon Sep 17 00:00:00 2001
From: Raymond Camden <raymondcamden@gmail.com>
Date: Wed, 15 Apr 2026 11:02:06 -0500
Subject: [PATCH 04/11] add initial size

---
 webflow.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/webflow.json b/webflow.json
index 37ad747..43d5bb6 100644
--- a/webflow.json
+++ b/webflow.json
@@ -1,6 +1,7 @@
 {
   "name": "My Amazing App",
   "publicDir": "dist",
+  "size": "large",
   "apiVersion": "2",
   "featureFlags": { "userAbilities": true },
   "appIntents": {

From e7b6b4d2fdbe7d2232bdb559484645462ef154a4 Mon Sep 17 00:00:00 2001
From: Raymond Camden <raymondcamden@gmail.com>
Date: Wed, 15 Apr 2026 12:06:27 -0500
Subject: [PATCH 05/11] add proxy server for API calls

---
 package-lock.json             | 768 ++++++++++++++++++++++++++++++++--
 package.json                  |   4 +-
 server/app.js                 |  35 ++
 src/components/Playground.tsx |  14 +-
 4 files changed, 767 insertions(+), 54 deletions(-)
 create mode 100644 server/app.js

diff --git a/package-lock.json b/package-lock.json
index e60123f..71da535 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,9 @@
         "acorn-typescript": "1.4.13",
         "acorn-walk": "8.3.4",
         "axios": "1.9.0",
+        "cors": "^2.8.6",
         "dotenv": "16.4.5",
+        "express": "^5.2.1",
         "fs-extra": "11.2.0",
         "prismjs": "1.29.0",
         "react": "18.2.0",
@@ -4993,6 +4995,147 @@
       "integrity": "sha512-v2YAxEmKaBLahNwE1mjp4WON6huMNeuDvagFZW+ASCuA/ku0bXR9hSMw0XpiqMoA3+rmnyck/tPRSFQkoC9Cuw==",
       "dev": true
     },
+    "node_modules/body-parser": {
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.2.tgz",
+      "integrity": "sha512-oP5VkATKlNwcgvxi0vM0p/D3n2C3EReYVX+DNYs5TjZFn/oQt2j+4sVJtSMr18pdRr8wjTcBl6LoV+FUwzPmNA==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "^3.1.2",
+        "content-type": "^1.0.5",
+        "debug": "^4.4.3",
+        "http-errors": "^2.0.0",
+        "iconv-lite": "^0.7.0",
+        "on-finished": "^2.4.1",
+        "qs": "^6.14.1",
+        "raw-body": "^3.0.1",
+        "type-is": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/body-parser/node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/body-parser/node_modules/http-errors": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-2.0.1.tgz",
+      "integrity": "sha512-4FbRdAX+bSdmo4AUFuS0WNiPz8NgFt+r8ThgNWmlrjQjt1Q7ZR9+zTlce2859x4KSXrwIsaeTqDoKQmtP8pLmQ==",
+      "license": "MIT",
+      "dependencies": {
+        "depd": "~2.0.0",
+        "inherits": "~2.0.4",
+        "setprototypeof": "~1.2.0",
+        "statuses": "~2.0.2",
+        "toidentifier": "~1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/body-parser/node_modules/iconv-lite": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.7.2.tgz",
+      "integrity": "sha512-im9DjEDQ55s9fL4EYzOAv0yMqmMBSZp6G0VvFyTMPKWxiSBHUj9NW/qqLmXUwXrrM7AvqSlTCfvqRb0cM8yYqw==",
+      "license": "MIT",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/body-parser/node_modules/media-typer": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-1.1.0.tgz",
+      "integrity": "sha512-aisnrDP4GNe06UcKFnV5bfMNPBUw4jsLGaWwWfnH3v02GnBuXX2MCVn5RbrWo0j3pczUilYblq7fQ7Nw2t5XKw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/body-parser/node_modules/mime-db": {
+      "version": "1.54.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.54.0.tgz",
+      "integrity": "sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/body-parser/node_modules/mime-types": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-3.0.2.tgz",
+      "integrity": "sha512-Lbgzdk0h4juoQ9fCKXW4by0UJqj+nOOrI9MJ1sSj4nI8aI2eo1qmvQEie4VD1glsS250n15LsWsYtCugiStS5A==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "^1.54.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/body-parser/node_modules/qs": {
+      "version": "6.15.1",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.15.1.tgz",
+      "integrity": "sha512-6YHEFRL9mfgcAvql/XhwTvf5jKcOiiupt2FiJxHkiX1z4j7WL8J/jRHYLluORvc1XxB5rV20KoeK00gVJamspg==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "side-channel": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=0.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/body-parser/node_modules/statuses": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz",
+      "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/body-parser/node_modules/type-is": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
+      "license": "MIT",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/brace-expansion": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
@@ -5242,7 +5385,6 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
       "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
-      "dev": true,
       "dependencies": {
         "es-errors": "^1.3.0",
         "function-bind": "^1.1.2"
@@ -5255,7 +5397,6 @@
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
       "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
-      "dev": true,
       "dependencies": {
         "call-bind-apply-helpers": "^1.0.2",
         "get-intrinsic": "^1.3.0"
@@ -5564,7 +5705,6 @@
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz",
       "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
-      "dev": true,
       "engines": {
         "node": ">= 0.6"
       }
@@ -5575,6 +5715,24 @@
       "integrity": "sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==",
       "dev": true
     },
+    "node_modules/cookie": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
+      "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.2.2.tgz",
+      "integrity": "sha512-D76uU73ulSXrD1UXF4KE2TMxVVwhsnCgfAyTg9k8P6KGZjlXKrOLe4dJQKI3Bxi5wjesZoFXJWElNWBjPZMbhg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.6.0"
+      }
+    },
     "node_modules/cookies": {
       "version": "0.9.1",
       "resolved": "https://registry.npmjs.org/cookies/-/cookies-0.9.1.tgz",
@@ -5607,6 +5765,23 @@
       "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
       "dev": true
     },
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+      }
+    },
     "node_modules/upath": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/upath/-/upath-2.0.1.tgz",
@@ -10047,7 +10733,6 @@
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
-      "dev": true,
       "engines": {
         "node": ">= 0.8"
       }
@@ -10344,8 +11029,7 @@
     "node_modules/wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
-      "dev": true
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
     },
     "node_modules/ws": {
       "version": "8.18.0",
diff --git a/package.json b/package.json
index 929ebea..8ec17ef 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "type": "module",
   "scripts": {
     "vite:dev": "vite --port 1337",
-    "dev": "vite build && concurrently \"webflow extension serve\" \"vite\"",
+    "dev": "vite build && concurrently \"webflow extension serve\" \"vite\" \"node server/app.js \"",
     "build": "vite build && webflow extension bundle",
     "sync-typings": "node ./scripts/sync-typings.js",
     "preview": "vite preview",
@@ -40,7 +40,9 @@
     "acorn-typescript": "1.4.13",
     "acorn-walk": "8.3.4",
     "axios": "1.9.0",
+    "cors": "^2.8.6",
     "dotenv": "16.4.5",
+    "express": "^5.2.1",
     "fs-extra": "11.2.0",
     "prismjs": "1.29.0",
     "react": "18.2.0",
diff --git a/server/app.js b/server/app.js
new file mode 100644
index 0000000..dc2e45c
--- /dev/null
+++ b/server/app.js
@@ -0,0 +1,35 @@
+import express from 'express';
+import cors from 'cors';
+
+const app = express();
+const port = 1338;
+const apiKey = process.env.ANTHROPIC_API_KEY;
+
+app.use(cors());
+app.use(express.json());
+
+app.post('/prompt', async (req, res) => {
+    const { prompt } = req.body;
+    console.log('testing', req.body);
+    const response = await fetch('https://api.anthropic.com/v1/messages', {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+          'anthropic-version': '2023-06-01',
+          'X-Api-Key': apiKey
+        },
+        body: JSON.stringify({
+          model: 'claude-sonnet-4-6',
+          max_tokens: 4096,
+          system:
+            'You are a coding assistant that helps users write and modify Webflow Designer API code. When asked to make changes to code, return only the modified code without any explanation or markdown code fences.',
+          messages: [{ role: 'user', content: prompt }],
+        }),
+    })
+
+    res.json(await response.json());
+});
+
+app.listen(port, () => {
+  console.log(`Server running on http://localhost:${port}`);
+});
\ No newline at end of file
diff --git a/src/components/Playground.tsx b/src/components/Playground.tsx
index f7eb1eb..cc05d7c 100644
--- a/src/components/Playground.tsx
+++ b/src/components/Playground.tsx
@@ -58,6 +58,7 @@ const Playground: React.FC = () => {
       console.error('VITE_ANTHROPIC_API_KEY is not set')
       return
     }
+    console.log(`running with prompt: ${text}`);
     const currentCode = codeRef.current
 
     const userMessage = `Here is the current code in the playground editor:
@@ -69,21 +70,12 @@ ${currentCode}
 Make the following changes to this code: ${text}`
 
     try {
-      const response = await fetch('https://api.anthropic.com/v1/messages', {
+     const response = await fetch('http://localhost:1338/prompt', {
         method: 'POST',
         headers: {
           'Content-Type': 'application/json',
-          'x-api-key': apiKey,
-          'anthropic-version': '2023-06-01',
-          'anthropic-dangerous-direct-browser-access': 'true',
         },
-        body: JSON.stringify({
-          model: 'claude-sonnet-4-6',
-          max_tokens: 4096,
-          system:
-            'You are a coding assistant that helps users write and modify Webflow Designer API code. When asked to make changes to code, return only the modified code without any explanation or markdown code fences.',
-          messages: [{ role: 'user', content: userMessage }],
-        }),
+        body: JSON.stringify({ prompt: userMessage }),
       })
 
       const data = await response.json()

From 0679a6a322047aa7749c2fb4517f4f4e3563ee26 Mon Sep 17 00:00:00 2001
From: Raymond Camden <raymondcamden@gmail.com>
Date: Wed, 15 Apr 2026 12:16:37 -0500
Subject: [PATCH 06/11] more quick cleanup, remove anthropic check form client
 side code

---
 server/app.js                 | 5 +++++
 src/components/Playground.tsx | 5 -----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/server/app.js b/server/app.js
index dc2e45c..8f32f55 100644
--- a/server/app.js
+++ b/server/app.js
@@ -5,6 +5,11 @@ const app = express();
 const port = 1338;
 const apiKey = process.env.ANTHROPIC_API_KEY;
 
+if(!apiKey) {
+    console.error('ANTHROPIC_API_KEY is not set');
+    process.exit(1);
+}
+
 app.use(cors());
 app.use(express.json());
 
diff --git a/src/components/Playground.tsx b/src/components/Playground.tsx
index cc05d7c..6d8c584 100644
--- a/src/components/Playground.tsx
+++ b/src/components/Playground.tsx
@@ -53,11 +53,6 @@ const Playground: React.FC = () => {
   const [prompt, setPrompt] = useState('')
 
   const sendPromptToAgent = async (text: string) => {
-    const apiKey = import.meta.env.VITE_ANTHROPIC_API_KEY
-    if (!apiKey) {
-      console.error('VITE_ANTHROPIC_API_KEY is not set')
-      return
-    }
     console.log(`running with prompt: ${text}`);
     const currentCode = codeRef.current
 

From 6d2149ba7e042dee750e0dcce29b95642ac092ba Mon Sep 17 00:00:00 2001
From: Raymond Camden <raymondcamden@gmail.com>
Date: Wed, 15 Apr 2026 12:24:35 -0500
Subject: [PATCH 07/11] format response

---
 server/app.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/app.js b/server/app.js
index 8f32f55..d2f8f61 100644
--- a/server/app.js
+++ b/server/app.js
@@ -27,7 +27,7 @@ app.post('/prompt', async (req, res) => {
           model: 'claude-sonnet-4-6',
           max_tokens: 4096,
           system:
-            'You are a coding assistant that helps users write and modify Webflow Designer API code. When asked to make changes to code, return only the modified code without any explanation or markdown code fences.',
+            'You are a coding assistant that helps users write and modify Webflow Designer API code. When asked to make changes to code, return only the modified code without any explanation or markdown code fences. Always respond in plain text, without any markdown formatting.',
           messages: [{ role: 'user', content: prompt }],
         }),
     })

From 9370fc6bbee6091f5d56a948df7bebfbb160c097 Mon Sep 17 00:00:00 2001
From: Tim McMackin <tim.mcmackin@webflow.com>
Date: Wed, 15 Apr 2026 13:48:32 -0400
Subject: [PATCH 08/11] Placeholder

---
 src/App.css                   |  4 ++++
 src/components/Playground.tsx | 13 ++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/App.css b/src/App.css
index cc31851..ae768f6 100644
--- a/src/App.css
+++ b/src/App.css
@@ -306,6 +306,10 @@ input {
   min-height: 28px;
 }
 
+#agent-prompt:disabled::placeholder {
+  font-style: italic;
+}
+
 /* Code block styles */
 pre {
   font-size: 11px !important;
diff --git a/src/components/Playground.tsx b/src/components/Playground.tsx
index 6d8c584..1c83adc 100644
--- a/src/components/Playground.tsx
+++ b/src/components/Playground.tsx
@@ -51,6 +51,7 @@ const Playground: React.FC = () => {
     'javascript',
   )
   const [prompt, setPrompt] = useState('')
+  const [isWaiting, setIsWaiting] = useState(false)
 
   const sendPromptToAgent = async (text: string) => {
     console.log(`running with prompt: ${text}`);
@@ -64,6 +65,9 @@ ${currentCode}
 
 Make the following changes to this code: ${text}`
 
+    setIsWaiting(true)
+    const timeoutId = setTimeout(() => setIsWaiting(false), 20000)
+
     try {
      const response = await fetch('http://localhost:1338/prompt', {
         method: 'POST',
@@ -82,6 +86,9 @@ Make the following changes to this code: ${text}`
       }
     } catch (err) {
       console.error(err)
+    } finally {
+      clearTimeout(timeoutId)
+      setIsWaiting(false)
     }
   }
   const monaco = useMonaco()
@@ -501,6 +508,7 @@ Make the following changes to this code: ${text}`
           id="agent-prompt"
           type="text"
           value={prompt}
+          disabled={isWaiting}
           onChange={(e) => setPrompt(e.target.value)}
           onKeyDown={(e) => {
             if (e.key === 'Enter') {
@@ -511,7 +519,7 @@ Make the following changes to this code: ${text}`
               }
             }
           }}
-          placeholder="Type a prompt and press Enter"
+          placeholder={isWaiting ? 'Waiting for response' : 'Type a prompt and press Enter'}
           style={{
             width: '100%',
             boxSizing: 'border-box',
@@ -523,6 +531,9 @@ Make the following changes to this code: ${text}`
             outline: 'none',
             fontFamily:
               'ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace',
+            fontStyle: isWaiting ? 'italic' : 'normal',
+            opacity: isWaiting ? 0.5 : 1,
+            cursor: isWaiting ? 'not-allowed' : 'text',
           }}
         />
       </div>

From ee527972d5af9e2914274594122711a68892021b Mon Sep 17 00:00:00 2001
From: Raymond Camden <raymondcamden@gmail.com>
Date: Wed, 15 Apr 2026 12:58:42 -0500
Subject: [PATCH 09/11] v2

---
 server/app.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/app.js b/server/app.js
index d2f8f61..06f60c1 100644
--- a/server/app.js
+++ b/server/app.js
@@ -27,7 +27,7 @@ app.post('/prompt', async (req, res) => {
           model: 'claude-sonnet-4-6',
           max_tokens: 4096,
           system:
-            'You are a coding assistant that helps users write and modify Webflow Designer API code. When asked to make changes to code, return only the modified code without any explanation or markdown code fences. Always respond in plain text, without any markdown formatting.',
+            'You are a coding assistant that helps users write and modify Webflow Designer API code. When asked to make changes to code, return only the modified code without any explanation or markdown code fences. Always respond in plain text, without any markdown formatting. You should only use V2 of the Designer Extension API.',
           messages: [{ role: 'user', content: prompt }],
         }),
     })

From 3d547833642edcc8e45dbeed99ec9d6de35ac83c Mon Sep 17 00:00:00 2001
From: Andrew Bass <32249276+awb305@users.noreply.github.com>
Date: Wed, 15 Apr 2026 15:33:34 -0400
Subject: [PATCH 10/11] Add client-side playground-to-extension bundler
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Adds a "Bundle" button to the Code Playground that lets users turn their
playground code into a downloadable Webflow Designer Extension. Parses
top-level named functions with Acorn, transpiles with Sucrase, generates
a minimal extension UI (button per function, console output area) styled
with Webflow design tokens, and packages it as bundle.zip via JSZip —
all client-side, no server needed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 .npmrc                                |   1 +
 CLAUDE.md                             |  46 +++
 package.json                          |   1 +
 src/components/BundlePreviewModal.tsx | 225 +++++++++++++++
 src/components/Playground.tsx         |  46 ++-
 src/utils/bundleGenerator.ts          | 388 ++++++++++++++++++++++++++
 vite.config.mts                       |   2 +-
 7 files changed, 707 insertions(+), 2 deletions(-)
 create mode 100644 .npmrc
 create mode 100644 CLAUDE.md
 create mode 100644 src/components/BundlePreviewModal.tsx
 create mode 100644 src/utils/bundleGenerator.ts

diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..7083917
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+onlyBuiltDependencies[]=esbuild
diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..98d4630
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,46 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## What This Is
+
+A Webflow Designer Extension that provides an interactive API Explorer and Code Playground for the Webflow Designer API (V2). It runs as a panel inside the Webflow Designer.
+
+## Commands
+
+```bash
+npm run dev              # Full dev: builds, then runs extension serve + vite + express server concurrently
+npm run vite:dev         # Vite dev server only (port 1337)
+npm run build            # vite build + webflow extension bundle → bundle.zip
+npm run sync-typings     # Copy .d.ts files from @webflow/designer-extension-typings into src/
+npm run clean            # rm dist + node_modules, reinstall
+```
+
+No test runner is configured. No linter is configured. Prettier is used for formatting (no semicolons, single quotes — see `.prettierrc`).
+
+## Architecture
+
+**Frontend** (React 18 + TypeScript + Vite, port 1337):
+- Two tabs: **API Explorer** (browse/run API methods by category) and **Code Playground** (Monaco editor with live execution)
+- Entry point: `src/main.jsx` → renders `<App>` with React Query provider
+- API examples live in `src/examples/*.ts` — each file exports an object of `{ subcategory: { methodName: async () => {...} } }`. Adding a function here auto-populates the API Explorer dropdown.
+- Examples are parsed at runtime using Acorn (AST) to extract function signatures, parameter names, and types for dynamic form generation
+- Monaco Editor gets Webflow Designer API intellisense via `.d.ts` files synced into `src/designer-extension-typings/` (imported as raw strings with Vite's `?raw`)
+- Code execution in the playground uses Sucrase to transpile TypeScript → JavaScript
+
+**Backend** (`server/app.js`, Express on port 1338):
+- Single `POST /prompt` endpoint that proxies to Anthropic API (Claude) for AI-powered code modification in the playground
+- Requires `ANTHROPIC_API_KEY` env var (see `.env.example`)
+
+**Key patterns:**
+- `@/*` path alias maps to `./src/*` (configured in both tsconfig and vite)
+- React Query manages async state (variable collections, enum queries)
+- Console output is captured and displayed in the UI via custom utilities in `src/utils/console-utils.ts`
+- Monaco cancellation errors are globally suppressed in `main.jsx`
+- `webflow.json` configures the extension manifest (size, API version, permissions)
+
+## Code Style
+
+- TypeScript strict mode (`noUnusedLocals`, `noUnusedParameters`, `noFallthroughCasesInSwitch`)
+- No semicolons, single quotes (Prettier)
+- Components: PascalCase files. Hooks: `use*` prefix. Types: `.types.ts` files. Constants: `.constants.ts` files.
diff --git a/package.json b/package.json
index 8ec17ef..659be0e 100644
--- a/package.json
+++ b/package.json
@@ -44,6 +44,7 @@
     "dotenv": "16.4.5",
     "express": "^5.2.1",
     "fs-extra": "11.2.0",
+    "jszip": "^3.10.1",
     "prismjs": "1.29.0",
     "react": "18.2.0",
     "react-dom": "18.2.0",
diff --git a/src/components/BundlePreviewModal.tsx b/src/components/BundlePreviewModal.tsx
new file mode 100644
index 0000000..d2785c6
--- /dev/null
+++ b/src/components/BundlePreviewModal.tsx
@@ -0,0 +1,225 @@
+import React, { useState } from 'react'
+import type { BundleResult } from '../utils/bundleGenerator'
+import { createBundleZip, downloadBlob } from '../utils/bundleGenerator'
+
+interface BundlePreviewModalProps {
+  bundle: BundleResult
+  appName: string
+  onAppNameChange: (name: string) => void
+  onClose: () => void
+}
+
+const BundlePreviewModal: React.FC<BundlePreviewModalProps> = ({
+  bundle,
+  appName,
+  onAppNameChange,
+  onClose,
+}) => {
+  const [isDownloading, setIsDownloading] = useState(false)
+
+  const previewHTML = bundle.previewHTML
+
+  const handleDownload = async () => {
+    setIsDownloading(true)
+    try {
+      const blob = await createBundleZip(bundle)
+      downloadBlob(blob, 'bundle.zip')
+    } finally {
+      setIsDownloading(false)
+    }
+  }
+
+  return (
+    <div
+      style={{
+        position: 'fixed',
+        top: 0,
+        left: 0,
+        right: 0,
+        bottom: 0,
+        background: 'rgba(0, 0, 0, 0.7)',
+        display: 'flex',
+        alignItems: 'center',
+        justifyContent: 'center',
+        zIndex: 9999,
+      }}
+      onClick={(e) => {
+        if (e.target === e.currentTarget) onClose()
+      }}
+    >
+      <div
+        style={{
+          background: '#1e1e1e',
+          borderRadius: 8,
+          border: '1px solid rgba(255, 255, 255, 0.13)',
+          width: 340,
+          maxHeight: '80vh',
+          display: 'flex',
+          flexDirection: 'column',
+          overflow: 'hidden',
+        }}
+      >
+        {/* Header */}
+        <div
+          style={{
+            display: 'flex',
+            alignItems: 'center',
+            justifyContent: 'space-between',
+            padding: '12px 16px',
+            borderBottom: '1px solid rgba(255, 255, 255, 0.13)',
+          }}
+        >
+          <span style={{ fontSize: 13, fontWeight: 600, color: '#f5f5f5' }}>
+            Bundle extension
+          </span>
+          <button
+            onClick={onClose}
+            style={{
+              background: 'none',
+              border: 'none',
+              color: '#a3a3a3',
+              cursor: 'pointer',
+              fontSize: 18,
+              lineHeight: 1,
+              padding: '0 4px',
+            }}
+          >
+            &times;
+          </button>
+        </div>
+
+        {/* Scrollable content */}
+        <div style={{ flex: 1, overflowY: 'auto', minHeight: 0 }}>
+          {/* App name input */}
+          <div style={{ padding: '12px 16px 0' }}>
+            <label
+              style={{
+                display: 'block',
+                fontSize: 11,
+                color: '#a3a3a3',
+                marginBottom: 4,
+              }}
+            >
+              App name
+            </label>
+            <input
+              type="text"
+              value={appName}
+              onChange={(e) => onAppNameChange(e.target.value)}
+              style={{
+                width: '100%',
+                boxSizing: 'border-box',
+                background: '#2e2e2e',
+                border: '1px solid rgba(255, 255, 255, 0.13)',
+                borderRadius: 4,
+                color: '#f5f5f5',
+                fontSize: 12,
+                padding: '6px 8px',
+                outline: 'none',
+                fontFamily: "'Inter', sans-serif",
+              }}
+            />
+          </div>
+
+          {/* Functions list */}
+          <div style={{ padding: '12px 16px 0' }}>
+            <div
+              style={{ fontSize: 11, color: '#a3a3a3', marginBottom: 4 }}
+            >
+              {bundle.functions.length} function{bundle.functions.length !== 1 ? 's' : ''} detected
+            </div>
+            <div
+              style={{
+                display: 'flex',
+                flexWrap: 'wrap',
+                gap: 4,
+              }}
+            >
+              {bundle.functions.map((fn) => (
+                <span
+                  key={fn.name}
+                  style={{
+                    fontSize: 10.5,
+                    background: '#383838',
+                    color: '#bdbdbd',
+                    padding: '2px 8px',
+                    borderRadius: 3,
+                    fontFamily:
+                      'ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, monospace',
+                  }}
+                >
+                  {fn.name}
+                </span>
+              ))}
+            </div>
+          </div>
+
+          {/* Preview */}
+          <div style={{ padding: '12px 16px' }}>
+            <div
+              style={{ fontSize: 11, color: '#a3a3a3', marginBottom: 4 }}
+            >
+              Preview
+            </div>
+            <div
+              style={{
+                border: '1px solid rgba(255, 255, 255, 0.13)',
+                borderRadius: 4,
+                overflow: 'hidden',
+                background: '#1e1e1e',
+              }}
+            >
+              <iframe
+                title="Extension preview"
+                srcDoc={previewHTML}
+                sandbox="allow-scripts"
+                style={{
+                  width: '100%',
+                  height: 200,
+                  border: 'none',
+                  display: 'block',
+                }}
+              />
+            </div>
+          </div>
+        </div>
+
+        {/* Download button — pinned to bottom */}
+        <div
+          style={{
+            padding: '12px 16px',
+            borderTop: '1px solid rgba(255, 255, 255, 0.13)',
+            flexShrink: 0,
+          }}
+        >
+          <button
+            onClick={handleDownload}
+            disabled={isDownloading || bundle.functions.length === 0}
+            className="button cc-primary"
+            style={{
+              width: '100%',
+              textAlign: 'center',
+              marginTop: 0,
+            }}
+          >
+            {isDownloading ? 'Generating...' : 'Download bundle.zip'}
+          </button>
+          {bundle.functions.length === 0 && (
+            <div
+              style={{
+                fontSize: 10.5,
+                color: '#ff8a8a',
+                marginTop: 4,
+                textAlign: 'center',
+              }}
+            >
+              No top-level functions found. Declare functions like: async function myAction() {'{ ... }'}
+            </div>
+          )}
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default BundlePreviewModal
diff --git a/src/components/Playground.tsx b/src/components/Playground.tsx
index 1c83adc..15e33ae 100644
--- a/src/components/Playground.tsx
+++ b/src/components/Playground.tsx
@@ -3,7 +3,9 @@ import MonacoEditor, { useMonaco } from '@monaco-editor/react'
 import type { editor } from 'monaco-editor'
 import { transform } from 'sucrase'
 import CodeBlock from './CodeBlock'
+import BundlePreviewModal from './BundlePreviewModal'
 import { configureMonacoWithDesignerTypings } from '../utils/designerTypings'
+import { generateBundleFiles } from '../utils/bundleGenerator'
 import ClipboardIcon from './icons/ClipboardIcon'
 import ClearIcon from './icons/ClearIcon'
 
@@ -52,6 +54,26 @@ const Playground: React.FC = () => {
   )
   const [prompt, setPrompt] = useState('')
   const [isWaiting, setIsWaiting] = useState(false)
+  const [showBundleModal, setShowBundleModal] = useState(false)
+  const [bundleAppName, setBundleAppName] = useState('My Extension')
+  const [bundleResult, setBundleResult] = useState<ReturnType<
+    typeof generateBundleFiles
+  > | null>(null)
+
+  const handleBundle = () => {
+    const currentCode = codeRef.current
+    const result = generateBundleFiles(currentCode, bundleAppName)
+    setBundleResult(result)
+    setShowBundleModal(true)
+  }
+
+  const handleAppNameChange = (name: string) => {
+    setBundleAppName(name)
+    if (bundleResult) {
+      const updated = generateBundleFiles(codeRef.current, name)
+      setBundleResult(updated)
+    }
+  }
 
   const sendPromptToAgent = async (text: string) => {
     console.log(`running with prompt: ${text}`);
@@ -471,7 +493,21 @@ Make the following changes to this code: ${text}`
           }}
         />
       </div>
-      <div style={{ marginBottom: 8, display: 'flex', justifyContent: 'flex-end' }}>
+      <div
+        style={{
+          marginBottom: 8,
+          display: 'flex',
+          justifyContent: 'flex-end',
+          gap: 8,
+        }}
+      >
+        <button
+          onClick={handleBundle}
+          className="button cc-primary"
+          style={{ background: '#383838', borderColor: 'rgba(255,255,255,0.13)' }}
+        >
+          Bundle
+        </button>
         <button
           onClick={() => runCode(codeRef.current)}
           disabled={isRunning}
@@ -609,6 +645,14 @@ Make the following changes to this code: ${text}`
           <CodeBlock code={output || ' '} language="javascript" />
         </div>
       </div>
+      {showBundleModal && bundleResult && (
+        <BundlePreviewModal
+          bundle={bundleResult}
+          appName={bundleAppName}
+          onAppNameChange={handleAppNameChange}
+          onClose={() => setShowBundleModal(false)}
+        />
+      )}
     </div>
   )
 }
diff --git a/src/utils/bundleGenerator.ts b/src/utils/bundleGenerator.ts
new file mode 100644
index 0000000..a94fa41
--- /dev/null
+++ b/src/utils/bundleGenerator.ts
@@ -0,0 +1,388 @@
+import { parse } from 'acorn'
+import tsPlugin from 'acorn-typescript'
+import { transform } from 'sucrase'
+import JSZip from 'jszip'
+
+export interface ParsedFunction {
+  name: string
+  code: string
+}
+
+/**
+ * Parse playground code and extract top-level named function declarations.
+ */
+export function parseTopLevelFunctions(code: string): ParsedFunction[] {
+  const parser = parse as unknown as (
+    input: string,
+    options: Record<string, unknown>,
+  ) => { body: Array<{ type: string; id?: { name: string }; start: number; end: number }> }
+
+  let ast: ReturnType<typeof parser>
+  try {
+    ast = parser(code, {
+      sourceType: 'module',
+      ecmaVersion: 'latest',
+      plugins: [tsPlugin()],
+      locations: true,
+    })
+  } catch {
+    // If TypeScript parsing fails, try plain JS
+    ast = parser(code, {
+      sourceType: 'module',
+      ecmaVersion: 'latest',
+      locations: true,
+    })
+  }
+
+  const functions: ParsedFunction[] = []
+  for (const node of ast.body) {
+    if (node.type === 'FunctionDeclaration' && node.id?.name) {
+      functions.push({
+        name: node.id.name,
+        code: code.slice(node.start, node.end),
+      })
+    }
+  }
+  return functions
+}
+
+/**
+ * Transpile TypeScript/JSX code to plain JavaScript using Sucrase.
+ */
+function transpileCode(code: string): string {
+  return transform(code, {
+    transforms: ['typescript', 'imports'],
+    jsxPragma: 'React.createElement',
+    jsxFragmentPragma: 'React.Fragment',
+  }).code
+}
+
+/**
+ * Generate the HTML for the extension.
+ */
+function generateHTML(appName: string): string {
+  return `<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>${appName}</title>
+  <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap" />
+  <style>
+    :root {
+      --background1: #1e1e1e;
+      --background2: #2e2e2e;
+      --background3: #383838;
+      --actionPrimaryBackground: #006acc;
+      --actionPrimaryBackgroundHover: #187cd9;
+      --actionPrimaryText: #ffffff;
+      --actionSecondaryBackground: linear-gradient(180deg, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0.10) 100%);
+      --actionSecondaryBackgroundHover: linear-gradient(180deg, rgba(255,255,255,0.18) 0%, rgba(255,255,255,0.16) 100%);
+      --actionSecondaryText: #e0e0e0;
+      --border1: rgba(255, 255, 255, 0.13);
+      --text1: #f5f5f5;
+      --text2: #bdbdbd;
+      --text3: #a3a3a3;
+      --font-stack: 'Inter', sans-serif;
+      --border-radius: 4px;
+      --boxShadows-action-colored: 0px 0.5px 1px 0px rgba(0,0,0,0.8), 0px 0.5px 0.5px 0px rgba(255,255,255,0.2) inset;
+      --boxShadows-action-secondary: 0px 0.5px 1px rgba(0,0,0,0.8), inset 0px 0.5px 0.5px rgba(255,255,255,0.12);
+    }
+
+    * { box-sizing: border-box; margin: 0; padding: 0; }
+
+    body {
+      font-family: var(--font-stack);
+      background: var(--background1);
+      color: var(--text1);
+      padding: 16px;
+    }
+
+    h1 {
+      font-size: 13px;
+      font-weight: 600;
+      margin-bottom: 12px;
+      letter-spacing: -0.1px;
+    }
+
+    .actions {
+      display: flex;
+      flex-direction: column;
+      gap: 8px;
+      margin-bottom: 12px;
+    }
+
+    .action-btn {
+      width: 100%;
+      padding: 8px 12px;
+      font-size: 11.5px;
+      font-weight: 500;
+      font-family: var(--font-stack);
+      color: var(--actionPrimaryText);
+      background: var(--actionPrimaryBackground);
+      border: none;
+      border-radius: var(--border-radius);
+      box-shadow: var(--boxShadows-action-colored);
+      cursor: pointer;
+      transition: background 0.15s ease;
+      text-align: left;
+    }
+
+    .action-btn:hover {
+      background: var(--actionPrimaryBackgroundHover);
+    }
+
+    .action-btn:active {
+      opacity: 0.9;
+    }
+
+    .action-btn:disabled {
+      opacity: 0.5;
+      cursor: not-allowed;
+    }
+
+    .output-label {
+      font-size: 11px;
+      color: var(--text3);
+      margin-bottom: 4px;
+    }
+
+    .output {
+      background: var(--background2);
+      border: 1px solid var(--border1);
+      border-radius: var(--border-radius);
+      padding: 8px;
+      font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, monospace;
+      font-size: 10.5px;
+      color: var(--text2);
+      min-height: 60px;
+      max-height: 200px;
+      overflow-y: auto;
+      white-space: pre-wrap;
+      word-break: break-word;
+    }
+
+    .status {
+      font-size: 10.5px;
+      color: var(--text3);
+      margin-top: 4px;
+      min-height: 16px;
+    }
+
+    .status.error { color: #ff8a8a; }
+    .status.success { color: #63d489; }
+  </style>
+</head>
+<body>
+  <h1>${appName}</h1>
+  <div class="actions" id="actions"></div>
+  <div class="output-label">Output</div>
+  <div class="output" id="output"></div>
+  <div class="status" id="status"></div>
+  <script src="app.js"></script>
+</body>
+</html>`
+}
+
+/**
+ * Generate the JavaScript for the extension.
+ */
+function generateJS(transpiledCode: string, functions: ParsedFunction[]): string {
+  const buttonSetup = functions
+    .map(
+      (fn) => `
+  {
+    const btn = document.createElement('button')
+    btn.className = 'action-btn'
+    btn.textContent = '${fn.name.replace(/([A-Z])/g, ' $1').replace(/^./, (s) => s.toUpperCase()).trim()}'
+    btn.addEventListener('click', async () => {
+      btn.disabled = true
+      statusEl.textContent = 'Running ${fn.name}...'
+      statusEl.className = 'status'
+      try {
+        await ${fn.name}()
+        statusEl.textContent = 'Done'
+        statusEl.className = 'status success'
+      } catch (err) {
+        statusEl.textContent = 'Error: ' + (err.message || err)
+        statusEl.className = 'status error'
+        _console.error(err)
+      } finally {
+        btn.disabled = false
+      }
+    })
+    actionsEl.appendChild(btn)
+  }`,
+    )
+    .join('\n')
+
+  return `(function () {
+  const actionsEl = document.getElementById('actions')
+  const outputEl = document.getElementById('output')
+  const statusEl = document.getElementById('status')
+
+  // Console capture
+  const _console = {
+    log: console.log.bind(console),
+    error: console.error.bind(console),
+    warn: console.warn.bind(console),
+    info: console.info.bind(console),
+  }
+
+  function appendOutput(prefix, args) {
+    const text = args.map(function (arg) {
+      if (arg instanceof Error) return arg.name + ': ' + arg.message
+      if (typeof arg === 'object' && arg !== null) {
+        try { return JSON.stringify(arg, null, 2) } catch (e) { return String(arg) }
+      }
+      return String(arg)
+    }).join(' ')
+    outputEl.textContent += (prefix ? '[' + prefix + '] ' : '') + text + '\\n'
+    outputEl.scrollTop = outputEl.scrollHeight
+  }
+
+  console.log = function () { appendOutput('', Array.from(arguments)); _console.log.apply(null, arguments) }
+  console.error = function () { appendOutput('Error', Array.from(arguments)); _console.error.apply(null, arguments) }
+  console.warn = function () { appendOutput('Warn', Array.from(arguments)); _console.warn.apply(null, arguments) }
+  console.info = function () { appendOutput('Info', Array.from(arguments)); _console.info.apply(null, arguments) }
+
+  // User functions
+  ${transpiledCode}
+
+  // Create buttons
+  ${buttonSetup}
+})()
+`
+}
+
+/**
+ * Generate the webflow.json manifest.
+ */
+function generateManifest(appName: string): string {
+  return JSON.stringify(
+    {
+      name: appName,
+      publicDir: '.',
+      size: 'default',
+      apiVersion: '2',
+      featureFlags: { userAbilities: true },
+      appIntents: { image: ['manage'] },
+      appConnections: ['manageImageElement'],
+    },
+    null,
+    2,
+  )
+}
+
+export interface BundleResult {
+  html: string
+  js: string
+  manifest: string
+  functions: ParsedFunction[]
+  previewHTML: string
+}
+
+/**
+ * Generate a static preview HTML with inert buttons (no JS execution).
+ */
+function generatePreviewHTML(appName: string, functions: ParsedFunction[]): string {
+  const buttons = functions
+    .map((fn) => {
+      const label = fn.name
+        .replace(/([A-Z])/g, ' $1')
+        .replace(/^./, (s) => s.toUpperCase())
+        .trim()
+      return `    <button class="action-btn">${label}</button>`
+    })
+    .join('\n')
+
+  return `<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap" />
+  <style>
+    :root {
+      --background1: #1e1e1e;
+      --actionPrimaryBackground: #006acc;
+      --actionPrimaryText: #ffffff;
+      --text1: #f5f5f5;
+      --text3: #a3a3a3;
+      --text2: #bdbdbd;
+      --background2: #2e2e2e;
+      --border1: rgba(255, 255, 255, 0.13);
+      --font-stack: 'Inter', sans-serif;
+      --border-radius: 4px;
+      --boxShadows-action-colored: 0px 0.5px 1px 0px rgba(0,0,0,0.8), 0px 0.5px 0.5px 0px rgba(255,255,255,0.2) inset;
+    }
+    * { box-sizing: border-box; margin: 0; padding: 0; }
+    body { font-family: var(--font-stack); background: var(--background1); color: var(--text1); padding: 16px; }
+    h1 { font-size: 13px; font-weight: 600; margin-bottom: 12px; }
+    .actions { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
+    .action-btn {
+      width: 100%; padding: 8px 12px; font-size: 11.5px; font-weight: 500;
+      font-family: var(--font-stack); color: var(--actionPrimaryText);
+      background: var(--actionPrimaryBackground); border: none;
+      border-radius: var(--border-radius); box-shadow: var(--boxShadows-action-colored);
+      cursor: pointer; text-align: left;
+    }
+    .output-label { font-size: 11px; color: var(--text3); margin-bottom: 4px; }
+    .output {
+      background: var(--background2); border: 1px solid var(--border1);
+      border-radius: var(--border-radius); padding: 8px;
+      font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, monospace;
+      font-size: 10.5px; color: var(--text2); min-height: 40px;
+    }
+  </style>
+</head>
+<body>
+  <h1>${appName}</h1>
+  <div class="actions">
+${buttons}
+  </div>
+  <div class="output-label">Output</div>
+  <div class="output"></div>
+</body>
+</html>`
+}
+
+/**
+ * Generate all bundle files from playground code.
+ */
+export function generateBundleFiles(
+  code: string,
+  appName: string,
+): BundleResult {
+  const functions = parseTopLevelFunctions(code)
+  const transpiledCode = transpileCode(code)
+  const html = generateHTML(appName)
+  const js = generateJS(transpiledCode, functions)
+  const manifest = generateManifest(appName)
+  const previewHTML = generatePreviewHTML(appName, functions)
+  return { html, js, manifest, functions, previewHTML }
+}
+
+/**
+ * Create a zip blob from the bundle files.
+ */
+export async function createBundleZip(bundle: BundleResult): Promise<Blob> {
+  const zip = new JSZip()
+  zip.file('index.html', bundle.html)
+  zip.file('app.js', bundle.js)
+  zip.file('webflow.json', bundle.manifest)
+  return zip.generateAsync({ type: 'blob' })
+}
+
+/**
+ * Trigger a browser file download.
+ */
+export function downloadBlob(blob: Blob, filename: string) {
+  const url = URL.createObjectURL(blob)
+  const a = document.createElement('a')
+  a.href = url
+  a.download = filename
+  document.body.appendChild(a)
+  a.click()
+  document.body.removeChild(a)
+  URL.revokeObjectURL(url)
+}
diff --git a/vite.config.mts b/vite.config.mts
index 602e819..1489014 100644
--- a/vite.config.mts
+++ b/vite.config.mts
@@ -40,7 +40,7 @@ export default defineConfig({
             'sucrase',
           ],
           // Other vendor libraries
-          vendor: ['axios', '@tanstack/react-query', 'prismjs'],
+          vendor: ['axios', '@tanstack/react-query', 'prismjs', 'jszip'],
         },
       },
     },

From be62871d41f1984cb40fe1946f92737cb057d0cb Mon Sep 17 00:00:00 2001
From: Andrew Bass <32249276+awb305@users.noreply.github.com>
Date: Wed, 15 Apr 2026 16:28:33 -0400
Subject: [PATCH 11/11] Support IIFE-wrapped playground code in bundler

When the playground code is an IIFE, treat the entire thing as a single
"Run" action instead of trying to find named functions inside it.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 src/utils/bundleGenerator.ts | 39 ++++++++++++++++++++++++++++++------
 1 file changed, 33 insertions(+), 6 deletions(-)

diff --git a/src/utils/bundleGenerator.ts b/src/utils/bundleGenerator.ts
index a94fa41..55200b4 100644
--- a/src/utils/bundleGenerator.ts
+++ b/src/utils/bundleGenerator.ts
@@ -35,14 +35,41 @@ export function parseTopLevelFunctions(code: string): ParsedFunction[] {
   }
 
   const functions: ParsedFunction[] = []
-  for (const node of ast.body) {
-    if (node.type === 'FunctionDeclaration' && node.id?.name) {
-      functions.push({
-        name: node.id.name,
-        code: code.slice(node.start, node.end),
-      })
+
+  function collectFunctions(nodes: typeof ast.body) {
+    for (const node of nodes) {
+      if (node.type === 'FunctionDeclaration' && node.id?.name) {
+        functions.push({
+          name: node.id.name,
+          code: code.slice(node.start, node.end),
+        })
+      }
     }
   }
+
+  // Check top-level nodes
+  collectFunctions(ast.body)
+
+  // If no functions found, check if the code is an IIFE — treat the whole
+  // thing as a single "run" action.
+  if (functions.length === 0) {
+    for (const node of ast.body) {
+      const expr = (node as any).expression
+      if (
+        node.type === 'ExpressionStatement' &&
+        expr?.type === 'CallExpression' &&
+        (expr.callee?.type === 'FunctionExpression' ||
+          expr.callee?.type === 'ArrowFunctionExpression')
+      ) {
+        functions.push({
+          name: 'run',
+          code: code,
+        })
+        break
+      }
+    }
+  }
+
   return functions
 }