diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
new file mode 100644
index 0000000..f7bf89b
--- /dev/null
+++ b/.github/workflows/verify.yml
@@ -0,0 +1,40 @@
+name: Verify
+
+on:
+  push:
+  pull_request:
+
+permissions: {}
+
+jobs:
+  lint:
+    name: ESLint
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: yarn
+      - run: corepack enable
+      - run: yarn install --immutable
+      - run: yarn lint
+
+  shexli:
+    name: Shexli
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+          cache-dependency-path: requirements-dev.txt
+      - run: corepack enable
+      - run: yarn setup-python
+      - run: yarn shexli
diff --git a/.gitignore b/.gitignore
index 2a95f1c..3cb9f9a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 gradienttopbar@pshow.org.shell-extension.zip
 node_modules
+.venv
 .idea/
 
 .yarn/*
diff --git a/README.md b/README.md
index feb349d..a231d0c 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,7 @@ Before you start development, make sure you have the following installed:
 
 - GNOME Shell (version 45 or higher)
 - Node.js and Yarn (the project uses Yarn 4.0.1)
+- Python 3.12 or newer
 - Git
 
 ## Setting Up the Development Environment
@@ -75,6 +76,7 @@ Before you start development, make sure you have the following installed:
 2. Install dependencies:
    ```bash
    yarn install
+   yarn setup-python
    ```
 
 ## Development Tools
@@ -98,12 +100,14 @@ The project includes several scripts to help with development:
 
 - `yarn prettify`: Formats code using Prettier.
 - `yarn lint`: Lints the code using ESLint.
+- `yarn shexli`: Runs the extensions.gnome.org static analyzer.
+- `yarn verify`: Runs ESLint and Shexli.
 - `yarn precommit`: Runs lint-staged for pre-commit hooks.
 
 ## Workflow
 
 1. Make your changes to the code.
-2. Run `yarn prettify` and `yarn lint` to ensure code quality.
+2. Run `yarn prettify` and `yarn verify` to ensure code quality.
 3. Test your changes using `yarn local-install` and `yarn open-prefs`.
 4. If needed, debug using `yarn pref-debug` or `yarn nested-wayland`.
 5. Submit a pull request with your changes.
diff --git a/package.json b/package.json
index 84b77ec..b3b0ea7 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,9 @@
     "zip": "cd src && zip -r ../gradienttopbar@pshow.org.shell-extension.zip .",
     "prettify": "prettier --write 'src/**/*.{css}' && yarn lint --fix",
     "lint": "eslint 'src/**/*.{js,json}'",
+    "setup-python": "python3 -m venv .venv && .venv/bin/python -m pip install -r requirements-dev.txt",
+    "shexli": ".venv/bin/shexli --format json \"$PWD/src\" | .venv/bin/python -c \"import json, sys; report = json.load(sys.stdin); print(json.dumps(report, indent=2)); raise SystemExit(report['summary']['finding_count'] != 0)\"",
+    "verify": "yarn lint && yarn shexli",
     "precommit": "lint-staged",
     "upload": "gnome-extensions upload --accept-tos"
   },
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..d7a88e8
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,2 @@
+shexli==0.2.1
+tree-sitter==0.25.2