EvidenceTask directory `<repo>/.bench/artifacts/tasks/task_9bc91b79153c489d/v1-files/` contains only `instruction.md` and `task.toml`. According to the Harbor contract documented in CLAUDE.md, a valid task MUST include: `environment/`, `solution/solve.sh`, `solution/fix.patch`, and `tests/test.sh`. These are completely missing. Additionally, the agent trajectory is empty (`[]`), indicating the agent never actually executed any meaningful steps. The verifier did run and produced output ('VALIDATION_FAILED: Tank: LeftTrackParticles color_ramp must be set to a gradient when moving'), suggesting the test infrastructure exists somewhere, but the task artifact distributed to the agent is incomplete.
Root causeThe task artifact is malformed and missing required directories. A Harbor task requires `solution/` and `tests/` directories as part of the verified contract structure, but the task artifact only contains the instruction and metadata files. This is an infrastructure/artifact-packing error, not a task specification problem.
RecommendationN/A - This is a harness/artifact infrastructure error. The task must be re-exported with the complete directory structure including `environment/`, `solution/`, and `tests/` directories. Verify the task export/packaging process is correctly bundling all required directories into the v1-files artifact.
Trajectory
This run recorded no trajectory steps.
Final diff , what the agent changed
No file changes, the agent left the workspace untouched.
Verifier output , the proof behind the reward
tests/test.sh
Godot Engine v4.4.stable.official.4c311cbee - https://godotengine.org
WARNING: Started the engine as `root`/superuser. This is a security risk, and subsystems like audio may not work correctly.
Set the environment variable `GODOT_SILENCE_ROOT_WARNING` to 1 to silence this warning.
at: setup2 (main/main.cpp:3181)
VALIDATION_FAILED: Tank: LeftTrackParticles color_ramp must be set to a gradient when moving
Reproduce this trial: git checkout 2f94510 && PYTHONPATH=src python3 scripts/build_site.py , then open trial/trial_d1cf2c9a9dcf4ed2. Re-running the agent live requires EVAL_PLATFORM_ENABLE_OAUTH_SMOKE=1 and is non-deterministic.