diff --git a/tools/parity_hosts.json b/tools/parity_hosts.json
index f76a7f82c..b56106e4d 100644
--- a/tools/parity_hosts.json
+++ b/tools/parity_hosts.json
@@ -28,6 +28,11 @@
    "python": "python3.13",
    "jobs": 6,
    "nice": 10,
+   "exclude": {
+    "mob_ai": "the vanilla oracle runs out of its 3 GB heap here (OutOfMemoryError in IO workers; passes on the desktop and the Mac) - 2026-10-26 trial",
+    "lan_integration": "two clients rendered on the CPU (lavapipe): different timing subtests fail on each run (elytra, consume-release, barter, critical-hits) - 2026-10-26 trial",
+    "world_reopen": "failed twice here (no Save and Quit button after reopening; the minecart-count flake), passes on the desktop - 2026-10-26 trial"
+   },
    "note": "a partner's server (Ubuntu, 8 EPYC threads, 30 GB, Detroit; tailnet only), used by nothing else: 6 jobs, in the CI runner's environment, slice and Xvfb screen (tools/ci/linux-runner.sh); the always-on Linux host since the ThinkPad stopped running harnesses (2026-10-26)"
   }
  },