diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6032a77..3fabf23 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -144,38 +144,43 @@ jobs:
         id: visual-tests
         run: pnpm --filter @trails-cool/planner test:visual
 
-      - name: Post diff comment on PR
-        if: failure() && steps.visual-tests.outcome == 'failure' && github.event_name == 'pull_request'
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          VISUAL_DIFF_TOKEN: ${{ secrets.VISUAL_DIFF_TOKEN }}
+      - name: Write diff images to job summary
+        if: failure() && steps.visual-tests.outcome == 'failure'
         run: |
           diffs=$(find apps/planner/.vitest-attachments -name "*-diff-*.png" 2>/dev/null | sort)
           if [ -z "$diffs" ]; then exit 0; fi
 
-          body="## Visual regression failures"$'\n\n'
-          body+="| Test | Diff (reference → actual) |"$'\n'
-          body+="|------|--------------------------|"$'\n'
-
+          echo "## Visual regression failures" >> $GITHUB_STEP_SUMMARY
+          echo "" >> $GITHUB_STEP_SUMMARY
           for diff in $diffs; do
             name=$(basename "$diff" | sed 's/-diff-chromium-[a-z]*\.png//' | sed 's/-/ /g')
-            response=$(curl -s -w "\n%{http_code}" -X POST \
-              -H "Authorization: Bearer $VISUAL_DIFF_TOKEN" \
-              -H "Accept: application/json" \
-              -F "file=@$diff;type=image/png" \
-              "https://uploads.github.com/repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/assets?name=$(basename $diff)")
-            http_code=$(echo "$response" | tail -1)
-            body_resp=$(echo "$response" | head -1)
-            echo "Upload HTTP $http_code: $body_resp"
-            url=$(echo "$body_resp" | jq -r '.url // empty')
-            if [ -n "$url" ]; then
-              body+="| \`$name\` | ![$name]($url) |"$'\n'
-            else
-              body+="| \`$name\` | *(upload failed)* |"$'\n'
-            fi
+            b64=$(base64 -w 0 "$diff")
+            echo "### \`$name\`" >> $GITHUB_STEP_SUMMARY
+            echo "<img src=\"data:image/png;base64,$b64\" alt=\"$name diff\" style=\"max-width:100%\">" >> $GITHUB_STEP_SUMMARY
+            echo "" >> $GITHUB_STEP_SUMMARY
           done
+          echo "To update snapshots if the change is intentional:" >> $GITHUB_STEP_SUMMARY
+          echo '```' >> $GITHUB_STEP_SUMMARY
+          echo "pnpm --filter @trails-cool/planner test:visual:update" >> $GITHUB_STEP_SUMMARY
+          echo '```' >> $GITHUB_STEP_SUMMARY
 
-          body+=$'\n'"To update snapshots if the change is intentional:"$'\n'
+      - name: Post diff comment on PR
+        if: failure() && steps.visual-tests.outcome == 'failure' && github.event_name == 'pull_request'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          diffs=$(find apps/planner/.vitest-attachments -name "*-diff-*.png" 2>/dev/null | sort)
+          if [ -z "$diffs" ]; then exit 0; fi
+
+          run_url="https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          body="## Visual regression failures"$'\n\n'
+          body+="The following tests produced screenshot diffs:"$'\n\n'
+          for diff in $diffs; do
+            name=$(basename "$diff" | sed 's/-diff-chromium-[a-z]*\.png//' | sed 's/-/ /g')
+            body+="- \`$name\`"$'\n'
+          done
+          body+=$'\n'"**[View diff images in the job summary]($run_url)**"$'\n\n'
+          body+="To update snapshots if the change is intentional:"$'\n'
           body+="\`\`\`"$'\n'
           body+="pnpm --filter @trails-cool/planner test:visual:update"$'\n'
           body+="\`\`\`"