diff --git a/.forgejo/workflows/ci.yml b/.forgejo/workflows/ci.yml
index 920cd91..8b4c936 100644
--- a/.forgejo/workflows/ci.yml
+++ b/.forgejo/workflows/ci.yml
@@ -19,6 +19,7 @@ jobs:
         with:
           php-version: '8.3'
           extensions: pdo_sqlite, mbstring, xml, dom
+          coverage: pcov
 
       - name: Cache Composer dependencies
         uses: https://data.forgejo.org/actions/cache@v4
@@ -40,4 +41,73 @@ jobs:
         run: vendor/bin/phpstan analyse
 
       - name: Tests
-        run: php artisan test
+        run: php artisan test --coverage-clover coverage.xml --coverage-text
+
+      - name: Parse coverage
+        if: github.event_name == 'pull_request'
+        id: coverage
+        run: |
+          COVERAGE=$(php -r '
+            $xml = simplexml_load_file("coverage.xml");
+            if ($xml === false || !isset($xml->project->metrics)) {
+              echo "0";
+              exit;
+            }
+            $metrics = $xml->project->metrics;
+            $statements = (int) $metrics["statements"];
+            $covered = (int) $metrics["coveredstatements"];
+            echo $statements > 0 ? round(($covered / $statements) * 100, 2) : 0;
+          ')
+          echo "percentage=$COVERAGE" >> "$GITHUB_OUTPUT"
+
+      - name: Comment coverage on PR
+        if: github.event_name == 'pull_request'
+        env:
+          FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+          COVERAGE: ${{ steps.coverage.outputs.percentage }}
+          REPO: ${{ github.repository }}
+          SERVER_URL: ${{ github.server_url }}
+          COMMIT_SHA: ${{ github.sha }}
+        run: |
+          API_URL="${SERVER_URL}/api/v1/repos/${REPO}/issues/${PR_NUMBER}/comments"
+          MARKER="<!-- ffr-ci-coverage-report -->"
+
+          BODY="${MARKER}
+          ## Code Coverage Report
+
+          | Metric | Value |
+          |--------|-------|
+          | **Line Coverage** | ${COVERAGE}% |
+
+          _Updated by CI — commit ${COMMIT_SHA}_"
+
+          # Find existing coverage comment
+          EXISTING=$(curl -sf -H "Authorization: token ${FORGEJO_TOKEN}" \
+            "${API_URL}?limit=50" | \
+            php -r '
+              $comments = json_decode(file_get_contents("php://stdin"), true);
+              if (!is_array($comments)) exit;
+              foreach ($comments as $c) {
+                if (str_contains($c["body"], "<!-- ffr-ci-coverage-report -->")) {
+                  echo $c["id"];
+                  exit;
+                }
+              }
+            ' || true)
+
+          if [ -n "$EXISTING" ]; then
+            # Update existing comment
+            curl -sf -X PATCH \
+              -H "Authorization: token ${FORGEJO_TOKEN}" \
+              -H "Content-Type: application/json" \
+              -d "$(php -r 'echo json_encode(["body" => $argv[1]]);' "$BODY")" \
+              "${SERVER_URL}/api/v1/repos/${REPO}/issues/comments/${EXISTING}" > /dev/null
+          else
+            # Create new comment
+            curl -sf -X POST \
+              -H "Authorization: token ${FORGEJO_TOKEN}" \
+              -H "Content-Type: application/json" \
+              -d "$(php -r 'echo json_encode(["body" => $argv[1]]);' "$BODY")" \
+              "${API_URL}" > /dev/null
+          fi