Project-2 baseline

worker-toolkit-potion-polyglot/explore/plugins/create-snapshot/bin/capture-snapshot.mjs

@@ -652,6 +652,13 @@ if (gitRepo) {
       git('read-tree HEAD', { env: indexEnv });
       git('add -A', { env: indexEnv });
       patch = git('diff --cached --binary --full-index HEAD', diffOpts);
+      if (patch) {
+        console.error(
+          'Warning: no turn checkpoint was found, so snapshot.patch holds every change in the ' +
+            'working tree, including edits the agent made during the captured turn. Check it ' +
+            'and remove those before converting the snapshot to a task.'
+        );
+      }
     }
 
     try {