diff --git a/pyproject.toml b/pyproject.toml
index 602279dad..0ce637528 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -230,7 +230,6 @@ all = [
   # where the user is expected to have a toolchain available.
   "hermes-agent[cron]",
   "hermes-agent[cli]",
-  "hermes-agent[dev]",
   "hermes-agent[pty]",
   "hermes-agent[mcp]",
   "hermes-agent[homeassistant]",
diff --git a/tests/test_project_metadata.py b/tests/test_project_metadata.py
index 29f32c6bb..4ad532c7c 100644
--- a/tests/test_project_metadata.py
+++ b/tests/test_project_metadata.py
@@ -88,6 +88,17 @@ def test_lazy_installable_extras_excluded_from_all():
         )
 
 
+def test_dev_extra_excluded_from_all():
+    """End-user installs should not pull test/lint/debug tooling."""
+    optional_dependencies = _load_optional_dependencies()
+
+    assert "dev" in optional_dependencies
+    assert not any(
+        spec == "hermes-agent[dev]"
+        for spec in optional_dependencies["all"]
+    )
+
+
 def test_messaging_extra_includes_qrcode_for_weixin_setup():
     optional_dependencies = _load_optional_dependencies()
 
diff --git a/uv.lock b/uv.lock
index 49f290f1f..b10a215c9 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1423,20 +1423,13 @@ acp = [
 all = [
     { name = "agent-client-protocol" },
     { name = "aiohttp" },
-    { name = "debugpy" },
     { name = "fastapi" },
     { name = "google-api-python-client" },
     { name = "google-auth-httplib2" },
     { name = "google-auth-oauthlib" },
     { name = "mcp" },
-    { name = "pytest" },
-    { name = "pytest-asyncio" },
-    { name = "pytest-timeout" },
-    { name = "ruff" },
-    { name = "setuptools" },
     { name = "simple-term-menu" },
     { name = "starlette" },
-    { name = "ty" },
     { name = "uvicorn", extra = ["standard"] },
     { name = "youtube-transcript-api" },
 ]
@@ -1629,7 +1622,6 @@ requires-dist = [
     { name = "hermes-agent", extras = ["cli"], marker = "extra == 'termux'" },
     { name = "hermes-agent", extras = ["cron"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["cron"], marker = "extra == 'termux'" },
-    { name = "hermes-agent", extras = ["dev"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["google"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["google"], marker = "extra == 'termux-all'" },
     { name = "hermes-agent", extras = ["homeassistant"], marker = "extra == 'all'" },