diff --git a/.github/workflows/_checks.yml b/.github/workflows/_checks.yml
index 22c5ca05..04a0404c 100644
--- a/.github/workflows/_checks.yml
+++ b/.github/workflows/_checks.yml
@@ -46,3 +46,17 @@ jobs:
           files: ./coverage.xml
           flags: unittests
           name: codecov-${{ matrix.python-version }}
+
+  links:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      # --offline blocks network requests and excludes every external URL, so this gate
+      # is deterministic: it fails only on a relative link or file path a diff broke.
+      - name: Check local links
+        uses: lycheeverse/lychee-action@v2
+        with:
+          args: >-
+            --offline
+            --no-progress
+            '**/*.md'