task_id stringclasses 9
values | split stringclasses 1
value | family stringclasses 6
values | level stringclasses 5
values | domain stringclasses 4
values | checks int64 5 10 | protected_checks listlengths 3 3 | qwen3_8_27b_full_solves_strict stringclasses 4
values | qwen3_8_27b_full_solves_lenient stringclasses 6
values | example_instruction stringclasses 9
values | example_files listlengths 6 16 | n_files int64 6 16 |
|---|---|---|---|---|---|---|---|---|---|---|---|
pyrepo-bug1 | train | pyrepo | bug1 | software-engineering | 5 | [
"library imports and the full test suite runs",
"every test that passed before still passes",
"input files left unchanged"
] | 1/8 | 3/8 | # Fix the tabulate library
A recent change introduced a bug in the `tabulate` library at /app/repo/tabulate. For example, the test `tests.test_output::test_break_long_words` now fails.
Find the cause and fix it in the library code.
- Run the visible tests with `cd /app/repo/tabulate && python3 -m pytest -q tests`. T... | [
"TASK.md",
"repo/tabulate/LICENSE",
"repo/tabulate/pytest.ini",
"repo/tabulate/tabulate/__init__.py",
"repo/tabulate/tests/common.py",
"repo/tabulate/tests/test_api.py",
"repo/tabulate/tests/test_internal.py",
"repo/tabulate/tests/test_output.py",
"repo/tabulate/tests/test_regression.py"
] | 9 |
pyrepo-implement | train | pyrepo | implement | software-engineering | 5 | [
"library imports and the full test suite runs",
"every test that passed before still passes",
"input files left unchanged"
] | 2/8 | 1/8 | # Fix the tabulate library
The function `simple_separated_format` in `/app/repo/tabulate/tabulate/__init__.py` is not implemented yet: it raises NotImplementedError. Implement it so it behaves as its docstring describes, consistent with the rest of the `tabulate` library.
- Run the visible tests with `cd /app/repo/ta... | [
"TASK.md",
"repo/tabulate/LICENSE",
"repo/tabulate/pytest.ini",
"repo/tabulate/tabulate/__init__.py",
"repo/tabulate/tests/common.py",
"repo/tabulate/tests/test_api.py",
"repo/tabulate/tests/test_internal.py",
"repo/tabulate/tests/test_output.py",
"repo/tabulate/tests/test_regression.py"
] | 9 |
repair-medium | train | repair | medium | software-engineering | 5 | [
"package imports and every function runs",
"no regressions in the functions that were already correct",
"input files left unchanged"
] | 2/8 | 2/8 | # Fix the accrual package
Customers report wrong amounts from the invoicing service. The cause is in the Python package at /app/project/src/accrual.
- The required behaviour is in /app/project/docs/SPEC.md and /app/project/docs/CHANGELOG.md (the latest changelog entry wins where they differ).
- The visible tests in /... | [
"TASK.md",
"project/README.md",
"project/docs/CHANGELOG.md",
"project/docs/SPEC.md",
"project/pytest.ini",
"project/scripts/export_invoices.py",
"project/src/accrual/__init__.py",
"project/src/accrual/dates.py",
"project/src/accrual/fees.py",
"project/src/accrual/invoices.py",
"project/src/accru... | 15 |
loans-easy | train | loans | easy | finance | 7 | [
"output file exists and is a JSON object",
"has exactly the required keys with the right types",
"input files left unchanged"
] | 0/8 | 5/8 | # Month-end loan provisions
The CFO writes: "Please prepare the August 2026 month-end loan-loss provisions as at 2026-08-31. Note that loans L-1002, L-1013 and L-1521 were written off last month, so leave them out."
- The loan book is in /app/data/loans.csv, installments and payments in /app/data/payments.csv, and th... | [
"TASK.md",
"data/loans.csv",
"data/payments.csv",
"data/writeoffs.csv",
"finance/fx_rates.csv",
"memos/memo-41_2026-06-01.md",
"memos/memo-42_2026-06-21.md",
"policy/credit_policy.md"
] | 8 |
loans-medium | train | loans | medium | finance | 7 | [
"output file exists and is a JSON object",
"has exactly the required keys with the right types",
"input files left unchanged"
] | 0/8 | 5/8 | # Month-end loan provisions
The CFO writes: "Please prepare the August 2026 month-end loan-loss provisions as at 2026-08-31. Note that loans L-1128, L-1196 and L-1803 were written off last month, so leave them out."
- The loan book is in /app/data/loans.csv, installments and payments in /app/data/payments.csv, and th... | [
"TASK.md",
"data/loans.csv",
"data/payments.csv",
"data/payments_returned.csv",
"data/writeoffs.csv",
"finance/fx_rates.csv",
"memos/memo-41_2026-06-06.md",
"memos/memo-42_2026-06-09.md",
"memos/memo-43_2026-08-09.md",
"memos/memo-44_2026-08-12.md",
"policy/credit_policy.md"
] | 11 |
loans-hard | train | loans | hard | finance | 7 | [
"output file exists and is a JSON object",
"has exactly the required keys with the right types",
"input files left unchanged"
] | 0/8 | 4/8 | # Month-end loan provisions
The CFO writes: "Please prepare the August 2026 month-end loan-loss provisions as at 2026-08-31. Note that loans L-1006, L-2498 and L-3170 were written off last month, so leave them out."
- The loan book is in /app/data/loans.csv, installments and payments in /app/data/payments.csv, and th... | [
"TASK.md",
"data/loans.csv",
"data/payments.csv",
"data/payments_returned.csv",
"data/writeoffs.csv",
"finance/fx_rates.csv",
"memos/memo-41_2026-06-15.md",
"memos/memo-42_2026-07-27.md",
"memos/memo-43_2026-07-28.md",
"memos/memo-44_2026-08-06.md",
"memos/memo-45_2026-08-09.md",
"memos/memo-4... | 16 |
expenses-easy | train | expenses | easy | office | 9 | [
"output file exists and is a JSON object",
"has exactly the required keys with the right types",
"input files left unchanged"
] | 1/8 | 3/8 | # Expense audit
Finance needs an audit of the Research department's expense claims dated in September 2026 (2026-09-01 to 2026-09-30).
- Claims are in /app/data/claims.csv; employees and departments in /app/data/employees.csv.
- The travel and expense policy is in /app/policy, including amendments. The finance team's... | [
"TASK.md",
"data/claims.csv",
"data/employees.csv",
"finance/README.md",
"finance/fx_corrections.md",
"finance/fx_rates.csv",
"policy/amendments/amendment-21_2026-09-02.md",
"policy/travel_policy.md"
] | 8 |
reflow-hard | train | reflow | hard | industrial | 10 | [
"output file exists and is a JSON object",
"has exactly the required keys with the right types",
"input files left unchanged"
] | 3/8 | 0/8 | # Reflow profile audit
Process engineering needs an audit of today's reflow oven runs on line 3.
- The process handbook is in /app/docs (read every document there; definitions and limits come only from the handbook).
- Thermocouple readings are in /app/data/thermocouples.csv; run details are in /app/data/runs.csv.
- ... | [
"TASK.md",
"data/boards.csv",
"data/runs.csv",
"data/thermocouples.csv",
"docs/handbook.md",
"docs/handbook_revision_B.md"
] | 6 |
downtime-medium | train | downtime | medium | industrial | 8 | [
"output file exists and is a JSON object",
"has exactly the required keys with the right types",
"input files left unchanged"
] | 2/8 | 3/8 | # Line downtime report
Plant engineering needs the unplanned downtime of production line A for the evening shift of 2026-09-21.
- The plant documentation is in /app/handbook, including amendments. Use it for the definition of unplanned downtime, the per-shift downtime limit that applies on that date, and any rules ab... | [
"TASK.md",
"data/machines.json",
"data/sensor_log.csv",
"data/shifts.csv",
"handbook/amendments/amendment-101_2026-03-10.md",
"handbook/amendments/amendment-102_2026-03-25.md",
"handbook/amendments/amendment-103_2026-07-16.md",
"handbook/amendments/amendment-104_2026-08-16.md",
"handbook/maintenance... | 9 |
Workbench (v4 task set: finance traps + protected reward)
An OpenEnv environment that trains workspace habits in a run_bash / submit sandbox, built for OpenEnv Arena.
- Source: https://github.com/moarshy/workbench
- Image:
ghcr.io/moarshy/workbench:v4 - Notes and pre-registration: https://github.com/moarshy/openenv-arena-notes/blob/main/versions/v8-workbench-v4.md
Tasks (9)
Finance (3), new in v4
- loans-easy / medium / hard. Month-end loan-loss provisions: stage loans by days past due, apply provision rates, write
provisions.json.- Late caveat: a dated risk-committee memo changes a rate (superseded on hard) or declares returned payments.
- False premise: the CFO names three "written-off" loans, and usually 1–2 are not in the register. Follow the records and list those loans as discrepancies. In 25% of instances the CFO is right.
- Hard adds: a future-dated memo, payments recorded after the reporting date, and FX.
Software (3)
- pyrepo-bug1 / implement. Real bugs in vendored toolz / boltons / tabulate / inflection, graded by the complete pristine test suite.
- repair-medium. A synthetic billing package with SPEC and CHANGELOG, and hidden tests.
Office (1)
- expenses-easy. A policy audit.
Industrial (2)
- reflow-hard. A reflow-oven audit.
- downtime-medium. A sensor-log downtime audit.
Reward
- 0 if any protected check fails: broken output schema, a changed input file, a test that passed before now failing, an edited test, or the decoy "fixed".
- Otherwise full success = 0.9 + 0.1 × steps_left / 12.
- Otherwise partial = 0.5 × share of checks passed.
The reward always lies in [0, 1].
Calibration
Qwen3.8-27B, thinking off, 12,288-token completion budget, 8 episodes per task, counting full solves:
| task | strict JSON | lenient JSON |
|---|---|---|
| pyrepo-bug1 | 1/8 | 3/8 |
| pyrepo-implement | 2/8 | 1/8 |
| repair-medium | 2/8 | 2/8 |
| loans-easy | 0/8 | 5/8 |
| loans-medium | 0/8 | 5/8 |
| loans-hard | 0/8 | 4/8 |
| expenses-easy | 1/8 | 3/8 |
| reflow-hard | 3/8 | 0/8 |
| downtime-medium | 2/8 | 3/8 |
Strict failures are almost all format: prose before the JSON, unescaped quotes, <tool_call> tags.
Licences
The vendored libraries keep their own licences: toolz and boltons are BSD-3-Clause, tabulate and inflection are MIT.
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