diff --git a/apps/framework/harness/run-eval.ts b/apps/framework/harness/run-eval.ts
index a64926d7..25230638 100644
--- a/apps/framework/harness/run-eval.ts
+++ b/apps/framework/harness/run-eval.ts
@@ -380,10 +380,17 @@ async function runOne(
     cliVersion?: string;
   }
 > {
-  const prompt = parseEvalMarkdown(
+  const previewHost = process.env.DOCS_PREVIEW_HOST;
+  const parsedBody = parseEvalMarkdown(
     readFileSync(ev.promptPath, 'utf8'),
     ev.promptPath
   ).body;
+  const prompt = previewHost
+    ? parsedBody.replaceAll(
+        'https://supabase.com/docs/',
+        `https://${previewHost}/docs/`
+      )
+    : parsedBody;
   // A CLI agent always runs in a sandbox and reads skills from disk with its
   // file tools (both modes). An in-process (ai-sdk) agent has no sandbox, so in
   // tools mode its skills are advertised in the prompt and loaded via the
diff --git a/packages/core/src/docs-results.ts b/packages/core/src/docs-results.ts
index dc9b520d..6196d349 100644
--- a/packages/core/src/docs-results.ts
+++ b/packages/core/src/docs-results.ts
@@ -58,7 +58,12 @@ const URL_IN_COMMAND_PATTERN = /https?:\/\/[^\s'"`\\;|&>()]+/g;
  */
 function isSupabaseApexUrl(value: string): boolean {
   try {
-    return new URL(value).hostname === 'supabase.com';
+    const hostname = new URL(value).hostname;
+    return (
+      hostname === 'supabase.com' ||
+      (process.env.DOCS_PREVIEW_HOST !== undefined &&
+        /^docs-[a-z0-9-]+-supabase\.vercel\.app$/.test(hostname))
+    );
   } catch {
     return false;
   }