diff --git a/src/web/public/constants.js b/src/web/public/constants.js
index 52881d3e..14459b33 100644
--- a/src/web/public/constants.js
+++ b/src/web/public/constants.js
@@ -2047,7 +2047,7 @@ function computeRewriteScrollLine(input) {
  * a `/g` regex, so {@link absoluteFilePathPattern} mints a fresh one per call.
  */
 const FILE_PATH_LINK_PATTERN =
-  /(\/(?:home|Users|tmp|var|private|opt|mnt|srv|media|data|workspace)\/[^\s"'<>|;&\n\x00-\x1f]*\.(?:log|txt|json|markdown|md|ya?ml|csv|xml|sh|py|tsx|ts|jsx|js|mjs|cjs|css|html?|toml|ini|sql|png|jpe?g|gif|webp|avif|bmp|ico|svg|pdf|docx|pptx|xlsx|mp4|webm|mov|m4v|ogv|mp3|wav))\b/g;
+  /(\/(?:home|Users|tmp|var|private|opt|mnt|srv|media|data|workspace)\/[^\s"'<>|;&\n\x00-\x1f]*\.(?:log|txt|json|markdown|md|ya?ml|csv|xml|sh|py|tsx|ts|jsx|js|mjs|cjs|css|html?|toml|ini|sql|diff|patch|png|jpe?g|gif|webp|avif|bmp|ico|svg|pdf|docx|pptx|xlsx|mp4|webm|mov|m4v|ogv|mp3|wav))\b/g;
 
 /** A fresh, zero-state instance of {@link FILE_PATH_LINK_PATTERN}. */
 function absoluteFilePathPattern() {
@@ -2100,7 +2100,7 @@ function previewsInFileViewer(filePath) {
  * {@link findFilePathLinks}.
  */
 const RELATIVE_FILE_PATH_LINK_PATTERN =
-  /(^|[\s"'`(\[{<>=,])((?![^\s"'`<>|;&()[\]{}=,\n\x00-\x1f]*:\/\/)(?:~\/|[^\s"'`<>|;&()[\]{}=,\/~\n\x00-\x1f])[^\s"'`<>|;&()[\]{}=,\n\x00-\x1f]*\.(?:log|txt|json|markdown|md|ya?ml|csv|xml|sh|py|tsx|ts|jsx|js|mjs|cjs|css|html?|toml|ini|sql|png|jpe?g|gif|webp|avif|bmp|ico|svg|pdf|docx|pptx|xlsx|mp4|webm|mov|m4v|ogv|mp3|wav))\b/g;
+  /(^|[\s"'`(\[{<>=,])((?![^\s"'`<>|;&()[\]{}=,\n\x00-\x1f]*:\/\/)(?:~\/|[^\s"'`<>|;&()[\]{}=,\/~\n\x00-\x1f])[^\s"'`<>|;&()[\]{}=,\n\x00-\x1f]*\.(?:log|txt|json|markdown|md|ya?ml|csv|xml|sh|py|tsx|ts|jsx|js|mjs|cjs|css|html?|toml|ini|sql|diff|patch|png|jpe?g|gif|webp|avif|bmp|ico|svg|pdf|docx|pptx|xlsx|mp4|webm|mov|m4v|ogv|mp3|wav))\b/g;
 
 /** The `(?:log|txt|…)` extension group, read off the rooted pattern so it cannot drift. */
 const FILE_LINK_EXTENSION_GROUP = /\\\.(\(\?:[^()]*\))\)\\b$/.exec(FILE_PATH_LINK_PATTERN.source)[1];
diff --git a/test/link-provider-regex.test.ts b/test/link-provider-regex.test.ts
index e7e088d5..c362a8bb 100644
--- a/test/link-provider-regex.test.ts
+++ b/test/link-provider-regex.test.ts
@@ -153,6 +153,9 @@ describe('terminal link-provider regexes (shipped source)', () => {
       '/home/a/.codeman-uploads/paste-2-cd.ogv',
       // Longer extension of a family must win over its prefix (tsx over ts).
       '/home/a/src/App.tsx',
+      // Diffs an agent writes for review; the attachment allowlist already serves them.
+      '/tmp/claude-1000/-home-a-repo/b3de6e9f/scratchpad/resolution.diff',
+      '/home/a/repo/fix.patch',
     ];
     for (const path of cases) {
       ext.lastIndex = 0;