diff --git a/.gitignore b/.gitignore
index 9415986..f6775ca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,6 @@ coverage/
 test-results/
 artifacts/
 tests/visual/*-snapshots/*-darwin.png
+
+# Local agent state and worktrees
+.claude/
diff --git a/vite.config.ts b/vite.config.ts
index 168a950..9ad3f9a 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -20,6 +20,9 @@ export default defineConfig({
       "tests/production.test.ts",
       "node_modules/**",
       "dist/**",
+      // Agent worktrees are full checkouts of this repo; without this their
+      // copies of every suite get discovered alongside the real ones.
+      "**/.claude/**",
     ],
   },
   build: { manifest: true, sourcemap: "hidden" },