diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 26eeb5485..a648faf9c 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -1,10 +1,10 @@
-name: JS Lint
+name: Lint
 on:
   - pull_request
 
 jobs:
-  js_lint:
-    name: JS Lint
+  lint_ts:
+    name: Lint TypeScript source
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -15,5 +15,25 @@ jobs:
         run: pip install jupyterlab~=4.0
       - name: Install JS dependencies
         run: jlpm
-      - name: Run JS Lint
+      - name: Lint TypeScript source
         run: jlpm lerna run lint:check
+
+  lint_py_imports:
+    name: Lint Python imports
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Create and activate venv
+        run: |
+          python -m venv lint_py_imports
+          source ./lint_py_imports/bin/activate
+      - name: Install JupyterLab
+        run: pip install jupyterlab~=4.0
+      - name: Install `import-linter`
+        run: pip install import-linter~=1.12.1
+      - name: Install Jupyter AI packages from source
+        run: |
+          jlpm install
+          jlpm install-from-src
+      - name: Lint Python imports
+        run: lint-imports
diff --git a/nx.json b/nx.json
index 5c42122e0..4e9b0baa2 100644
--- a/nx.json
+++ b/nx.json
@@ -11,6 +11,9 @@
     },
     "dev-uninstall": {
       "dependsOn": ["clean:labextension"]
+    },
+    "install-from-src": {
+      "dependsOn": ["^install-from-src"]
     }
   },
   "tasksRunnerOptions": {
diff --git a/package.json b/package.json
index f2bab61bd..e0dc1bd99 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "dev": "jupyter lab --config playground/config.py",
     "dev-install": "lerna run dev-install --stream",
     "dev-uninstall": "lerna run dev-uninstall --stream",
+    "install-from-src": "lerna run install-from-src --stream",
     "lint": "jlpm && lerna run prettier && lerna run eslint",
     "lint:check": "lerna run prettier:check && lerna run eslint:check",
     "watch": "lerna run watch --parallel --stream",
diff --git a/packages/jupyter-ai-magics/package.json b/packages/jupyter-ai-magics/package.json
index 9d4be7ea9..c94e3bea1 100644
--- a/packages/jupyter-ai-magics/package.json
+++ b/packages/jupyter-ai-magics/package.json
@@ -19,6 +19,7 @@
   },
   "scripts": {
     "dev-install": "pip install -e \".[dev,all]\"",
-    "dev-uninstall": "pip uninstall jupyter_ai_magics -y"
+    "dev-uninstall": "pip uninstall jupyter_ai_magics -y",
+    "install-from-src": "pip install ."
   }
 }
diff --git a/packages/jupyter-ai/package.json b/packages/jupyter-ai/package.json
index 2e8348983..7665370f3 100644
--- a/packages/jupyter-ai/package.json
+++ b/packages/jupyter-ai/package.json
@@ -55,7 +55,8 @@
     "watch:src": "tsc -w",
     "watch:labextension": "jupyter labextension watch .",
     "dev-install": "pip install -e \".[dev,all,test]\" && jupyter labextension develop . --overwrite && jupyter server extension enable jupyter_ai",
-    "dev-uninstall": "pip uninstall jupyter_ai -y"
+    "dev-uninstall": "pip uninstall jupyter_ai -y",
+    "install-from-src": "pip install ."
   },
   "dependencies": {
     "@emotion/react": "^11.10.5",
diff --git a/pyproject.toml b/pyproject.toml
index 227a5282d..f829e181b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,3 +27,14 @@ ignore = [".*"]
 
 [tool.check-wheel-contents]
 ignore = ["W002"]
+
+[tool.importlinter]
+root_packages = ["jupyter_ai", "jupyter_ai_magics"]
+include_external_packages = true
+
+[[tool.importlinter.contracts]]
+key = "pydantic"
+name = "Forbidden import of `pydantic` package. Please import from `langchain.pydantic_v1` instead for compatibility with both Pydantic v1 and v2."
+type = "forbidden"
+source_modules = ["jupyter_ai", "jupyter_ai_magics"]
+forbidden_modules = ["pydantic"]