diff --git a/.forgejo/workflows/grade.yml b/.forgejo/workflows/grade.yml
index aff2a6b..a1afe88 100644
--- a/.forgejo/workflows/grade.yml
+++ b/.forgejo/workflows/grade.yml
@@ -7,6 +7,8 @@ on: [push]
 #   - the nested grade container mounts the secret + hidden tests straight from
 #     the host (/opt/grade/grade.env, /opt/grade-hidden/...) — never in this
 #     repo, no job-container options, no Actions secrets required
+#   - checkout uses Forgejo's native action (data.forgejo.org), required for
+#     forgejo-runner v13
 jobs:
   grade:
     runs-on: docker
@@ -14,9 +16,6 @@ jobs:
       image: gitea/runner-images:ubuntu-22.04
     steps:
       - uses: https://data.forgejo.org/actions/checkout@v6
-      - name: Probe workspace
-        run: |
-          { echo "PWD=$PWD"; echo "WS=${GITHUB_WORKSPACE:-unset}"; ls -la /workspace 2>&1 | head -20; ls -la /workspace/*/ 2>/dev/null | head -20; } > /workspace/PROBE.txt 2>&1 || echo "cannot write workspace" > /workspace/PROBE.txt
       - name: Grade (blank fails, solved passes)
         run: |
           docker run --rm --network=none \
@@ -25,5 +24,5 @@ jobs:
             -v /opt/grade-hidden/cs2060/record-manager:/hidden:ro \
             -v /opt/grade/runner-diag:/diag \
             grade-c:dev \
-            sh -c 'set -a; . /run/secrets/grade.env; set +a; { echo "SECRET_LEN=${#GRADE_HMAC_SECRET}"; python3 /opt/grade/grade_cli.py run --student /work --hidden /hidden --course CS2060 --assignment record-manager --out /work/results.json; python3 -c 'import json; d=json.load(open("/work/results.json")); r=d["result"]; print("VERDICT ok=", r["ok"], "public=", r["tests"]["public"], "hidden=", r["tests"]["hidden"])'; } 2>&1 | tee /diag/latest.log'
-          echo "job-step exit=$?"
+            sh -c 'set -a; . /run/secrets/grade.env; set +a; echo "SECRET_LEN=${#GRADE_HMAC_SECRET}"; python3 /opt/grade/grade_cli.py run --student /work --hidden /hidden --course CS2060 --assignment record-manager --out /work/results.json 2>&1 | tee /diag/latest.log'
+          python3 -c "import json; d=json.load(open('results.json'))['result']; print('VERDICT ok=', d['ok'], 'public=', d['tests']['public'], 'hidden=', d['tests']['hidden'])"