@@ -111,13 +111,16 @@ repos:
         name: lychee (authored documentation)
         entry: python ./ci/tools/run_lychee.py
         language: python
+        # Update this shared pin manually until Dependabot releases support for
+        # local-hook dependencies: https://github.com/dependabot/dependabot-core/issues/15489
+        # Once supported, add lychee-bin to the allowlist in .github/dependabot.yml.
         additional_dependencies: &lychee_dependencies
           - lychee-bin==0.24.2
         types: [text]
         require_serial: true
         args:
           - --cache
-          - --max-cache-age=1d
+          - --max-cache-age=3d
           - --max-concurrency=4
           - --max-retries=3
           - --no-progress
@@ -135,7 +138,7 @@ repos:
         always_run: true
         args:
           - --cache
-          - --max-cache-age=1d
+          - --max-cache-age=3d
           - --max-concurrency=16
           - --host-concurrency=2
           - --host-request-interval=250ms
 
@@ -92,8 +92,9 @@ fragments. Only the URL-result file is shared across operating systems;
 pre-commit's installed environments retain their OS/Python-specific caches.
 
 Successful external checks retain their original timestamps and expire after
-one day. Failed URLs are not persisted, and filesystem targets are checked
-afresh. The rendered hook uses its own cache directory, selected by
+three days, allowing reuse when a nightly refresh is missed. Nightly refreshes
+still check links afresh. Failed URLs are not persisted, and filesystem targets
+are checked afresh. The rendered hook uses its own cache directory, selected by
 `LYCHEE_CACHE_DIR` (default `.lychee-rendered`), so its fragment-aware results
 cannot mix with authored results in the checkout's `.lycheecache`. Per-pass
 JSON reports and a Markdown summary are retained as CI artifacts.