diff --git a/.vscodeignore b/.vscodeignore
index f16ff34..cca7e30 100644
--- a/.vscodeignore
+++ b/.vscodeignore
@@ -23,4 +23,13 @@ noxfile.py
 **/requirements.txt
 **/requirements.in
 **/tool/_debug_server.py
-media/**
\ No newline at end of file
+media/**
+.claude/**
+.mypy_cache/**
+scripts/**
+eslint.config.js
+pnpm-lock.yaml
+pnpm-workspace.yaml
+pyproject.toml
+uv.lock
+.python-version
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e51c6e7..e4bce59 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,3 +27,5 @@
 - Added test coverage tracking
 - Stabilized aggregate coverage reporting when a language-specific report is unavailable
 - Stabilized TypeScript coverage by waiting for an end-to-end PythonTA diagnostic
+- Fixed `vsce-package` script failing under pnpm by passing `--no-dependencies`, since dependencies are bundled by webpack
+- Excluded development-only files (e.g., `.claude/`, `.mypy_cache/`, lockfiles, `scripts/`) from the packaged extension
diff --git a/package.json b/package.json
index 5ab6196..f2d9c33 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
         "test": "node ./out/test/runTest.js",
         "pretest:coverage": "pnpm run compile-tests",
         "test:coverage": "node scripts/run-coverage.js",
-        "vsce-package": "vsce package -o python-ta.vsix"
+        "vsce-package": "vsce package --no-dependencies -o python-ta.vsix"
     },
     "contributes": {
         "configuration": {