diff --git a/eslint.config.js b/eslint.config.js
index 40fd2b28..13f552e3 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -12,6 +12,17 @@ export default [
       '*.config.ts',
       '**/dist/**',
       '__LOCAL_LLMs/**',
+      // Python virtual env in extraction-service/python ships with
+      // urllib3's emscripten worker stubs (JS files that reference
+      // browser globals like `self`, `fetch`, `TextEncoder`). Those
+      // files are NOT project source and must never be linted.
+      '**/.venv/**',
+      '**/venv/**',
+      '**/__pycache__/**',
+      // Playwright artifacts (per-package configs already exclude
+      // these, but the root config is what runs in CI).
+      '**/playwright-report/**',
+      '**/test-results/**',
     ],
   },
   js.configs.recommended,