diff --git a/noxfile.py b/noxfile.py
index 9a35d81..9edfc43 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -4,6 +4,7 @@
 # ///
 """Nox setup."""
 
+import os
 import shutil
 from pathlib import Path
 
@@ -29,8 +30,11 @@ def lint(s: nox.Session, /) -> None:
 
 @session(uv_groups=["lint"], reuse_venv=True)
 def precommit(s: nox.Session, /) -> None:
-    """Run prek."""
-    s.run("prek", "run", "--all-files", *s.posargs)
+    """Run the pre-commit hooks (via prek)."""
+    # Not a real commit -- no-commit-to-branch would always fail here.
+    # Merge into any SKIP already set, rather than clobber it.
+    skip = ",".join(filter(None, [os.environ.get("SKIP"), "no-commit-to-branch"]))
+    s.run("prek", "run", "--all-files", *s.posargs, env={"SKIP": skip})
 
 
 @session(uv_groups=["lint"], reuse_venv=True)