Inverse dynamics model

After grading, a reviewer model reads the submission's files and the agent's trajectory and checks each of the task's rules. A failed check makes the score 0. Step numbers link into the trajectory.

LLM adversarial review is not proof of arbitrary program behavior. Host storage and task-specific deterministic checks remain required.

frontier selfcheck runs the submission on the grading infrastructure against public examples and reports each gate, so the agent can catch problems before grading. Each run gets four. This agent used 4 of 4.

1. 1
   failed5h 30m into the runtook 6m 7s

   failed startup: Server did not become healthy in 300s (last /health probe: RuntimeError: Submission HTTP request failed: ConnectionRefusedError: [Errno 111] Connection refused); end of its log: ages/torchvision/models/resnet.py", line 705, in resnet18 return _resnet(BasicBlock, [2, 2, 2,

   2 gates

   • ✓review prerequisites
   • ✗startup · Server did not become healthy in 300s (last /health probe: RuntimeError: Submission HTTP request failed: ConnectionRefusedError: [Errno 111] Connection refused); end of its log: ages/torchvision/models/resnet.py", line 705, in resnet18 return _resnet(BasicBlock, [2, 2, 2, 2], weights, progress, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/venv/lib/python3.12/site-packages/torchvision/models/resnet.py", line 301, in _resnet model.load_state_dict(weights.get_state_dict(progress=progress, check_hash=True)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/venv/lib/python3.12/site-packages/torchvision/models/_api.py", line 90, in get_state_dict return load_state_dict_from_url(self.url, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/venv/lib/python3.12/site-packages/torch/hub.py", line 867, in load_state_dict_from_url download_url_to_file(url, cached_file, hash_prefix, progress=progress) File "/opt/venv/lib/python3.12/site-packages/torch/hub.py", line 708, in download_url_to_file u = urlopen(req) ^^^^^^^^^^^^ File "/usr/lib/python3.12/urllib/request.py", line 215, in urlopen return opener.open(url, data, timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.12/urllib/request.py", line 515, in open response = self._open(req, data) ^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.12/urllib/request.py", line 532, in _open result = self._call_chain(self.handle_open, protocol, protocol + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.12/urllib/request.py", line 492, in _call_chain result = func(*args) ^^^^^^^^^^^ File "/usr/lib/python3.12/urllib/request.py", line 1392, in https_open return self.do_open(http.client.HTTPSConnection, req, ^^^^^^^^^^^^^^^^^^^^^^^^ ...[clipped]
2. 2
   failed7h 29m into the runtook 7m 6s

   startup 62.3 s of 300 s; failed POST /actions: RuntimeError: timeout: attempt 1 timed out: RuntimeError: Submission HTTP request failed: TimeoutError: timed out; The public clip did not answer within grading's 300 s per-clip ceiling (cut after 300.3 s), which grading's first held-out clip ha

   3 gates

   • ✓review prerequisites
   • ✓startup · GET /health answered 200 after 62.3 s
   • ✗POST /actions · RuntimeError: timeout: attempt 1 timed out: RuntimeError: Submission HTTP request failed: TimeoutError: timed out
3. 3
   failed7h 55m into the runtook 17m 11s

   startup 61.9 s of 300 s; 1/2 gates passed; failed 43 clips one at a time: the sample's 670 s share of the 3600 s deadline passed before all 8 sampled clips were sent (3 sent, median 235.37 s; projected from 8 of 43 requests at concurrency 1, a lower bound); grading scores unsent clips as emp

   5 gates

   • ✓review prerequisites
   • ✓startup · GET /health answered 200 after 61.9 s
   • ✓POST /actions · {"actions": 0, "dropped_actions": 0, "warning": null, "first": []}
   • ✓slowest request · 4 clips one at a time, each from its first attempt to its last (retries included), median 235.33 s, the first (cold) 235.28 s
   • ✗43 clips one at a time · the sample's 670 s share of the 3600 s deadline passed before all 8 sampled clips were sent (3 sent, median 235.37 s; projected from 8 of 43 requests at concurrency 1, a lower bound); grading scores unsent clips as empty and fails the run above 2 failed clips
4. 4
   failed9h 7m into the runtook 17m 28s

   startup 64.8 s of 300 s; 1/2 gates passed; failed 43 clips one at a time: the sample's 670 s share of the 3600 s deadline passed before all 8 sampled clips were sent (3 sent, median 235.37 s; projected from 8 of 43 requests at concurrency 1, a lower bound); grading scores unsent clips as emp

   5 gates

   • ✓review prerequisites
   • ✓startup · GET /health answered 200 after 64.8 s
   • ✓POST /actions · {"actions": 0, "dropped_actions": 0, "warning": null, "first": []}
   • ✓slowest request · 4 clips one at a time, each from its first attempt to its last (retries included), median 235.33 s, the first (cold) 235.28 s
   • ✗43 clips one at a time · the sample's 670 s share of the 3600 s deadline passed before all 8 sampled clips were sent (3 sent, median 235.37 s; projected from 8 of 43 requests at concurrency 1, a lower bound); grading scores unsent clips as empty and fails the run above 2 failed clips

The agent's last message before its session ended.