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finance-1
finance
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The file loan.json contains loan details including principal, annual_rate (expressed as a fraction)...
industrial-2
industrial
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Develop a discrete PID tank-level controller through simulation. Implement the plant simulation you...
math-1
math
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Answer every exact-integer problem listed below. Because the values are too large for a naive brute...
media-0
media
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The input file in.srt is a subtitle file that might contain a BOM, CRLF line endings, irregular num...
office-2
office
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Meeting notes are located in notes/meeting_*.txt, and the team roster is in roster.csv (columns: fu...
science-12
science
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Combine the chemical kinetics model found in params.json (containing rate constants k1,k2,k3) with ...
security-8
security
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The task focuses on detection engineering for synthetic shell and process command lines. The file s...
software-1
software
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The `meterbill/` package converts meter-reading CSV text into monthly electricity bills. Customers ...
finance-13
finance
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Value American options using a Cox-Ross-Rubinstein binomial tree. market.json contains spot, rate (...
industrial-12
industrial
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. To minimize the makespan, assign jobs to machines. jobs.csv: job,family,proc,release (minutes). set...
math-3
math
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Resolve the following computational problems precisely (python3 and numpy are available; Python int...
media-12
media
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. stream.mcf is a corrupted media container. Its structure consists of the magic bytes 'MCF1' followe...
office-3
office
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The team roster is located in roster.csv (columns: full_name, aliases separated by pipes), and meet...
science-13
science
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Using the 4-species kinetics defined in params.json (k1,k2,k3,kf,kr, dose, t_dose), begin integrati...
software-3
software
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. In `ttlcache.py`, build the `TTLCache` class, which functions as an LRU cache featuring individual ...
industrial-13
industrial
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Arrange jobs across machines to minimize the makespan. jobs.csv: job,family,proc,release (minutes)....
math-7
math
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The file roads.csv contains a road network where lines beginning with # are comments, and if a pair...
media-13
media
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The file stream.mcf is a corrupted media container. Its structure begins with the magic bytes 'MCF1...
office-12
office
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Set up a mini project. The file tasks.csv contains columns id,duration,crew,deps; the file resource...
science-15
science
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The file assay.csv (columns: id,S,S_unit,I_uM,rate,rate_unit,qc) contains initial-rate data for enz...
software-5
software
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Discard the temporary `old_report.py` script. Create a new command-line utility named `logq.py`, in...
math-14
math
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The alphabet consists of {a,b,c}. The file params.json specifies the queries (lengths n) and the fo...
office-14
office
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Perform intercompany ledger reconciliation for the corporate group with a cutoff of 2026-09-30. ent...
science-16
science
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The file dist.csv contains a symmetric 13x13 matrix of estimated pairwise evolutionary distances, w...
software-11
software
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Create a file named `calc.py` that contains the definition of `class CalcError(Exception)` along wi...
math-16
math
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Facility location. depots.csv contains columns (id,fixed,cap); activating a depot incurs a `fixed` ...
office-15
office
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Perform reconciliation of the intercompany ledgers for a corporate group with a cutoff date of 2026...
software-15
software
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The file `sim.py` implements a compact discrete-event simulation system, providing a `Sim` class wi...
math-17
math
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Facility location problem. The file depots.csv has columns (id,fixed,cap); activating a depot incur...
office-16
office
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Create a 14-day schedule beginning on Monday 2026-11-02 (weeks run Mon-Sun, corresponding to days 1...
software-17
software
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Create `kv.py` (stub) containing `TxError(Exception)` and a `Store` class implementing an in-memory...
office-17
office
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Create a 14-day schedule commencing on Monday 2026-11-02 (weeks run Mon-Sun, meaning days 1-7 and 8...
software-18
software
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. Create a stub for `patchlib.py` containing: `PatchError(Exception)`, `make_patch(old, new, context=...
software-20
software
Operate from the current directory by executing shell commands; the environment provides python3 with access to numpy, pandas and Pillow. Once completed, respond with {"answer": "done"} to trigger scoring of your files. The request rate limiter is implemented across `limiter.py`, `bucket.py`, `units.py` and `report.py...

Mixed Skills v4: eight-domain verified workspace tasks

One OpenEnv server, 150 deterministic procedurally generated tasks across the eight evaluation domains: software engineering, industrial and physical systems, natural science, office work, finance and economics, math and formal reasoning, cybersecurity, and media production. Each task gives the agent a scratch workspace with input files and a written specification. The agent works with shell commands and is scored by a hidden verifier on the files it leaves behind.

tasks.jsonl lists every task id with its domain and the exact first-turn prompt. The image is docker.io/chrismun/mixed-env:v4 (linux/amd64); it contains 150 task ids and the submission names the 34 used for training.

Interaction

Each turn the model replies with exactly one JSON object:

  • {"command": "<shell command>"} runs in the workspace (python3 with numpy, pandas and Pillow). At most 12 commands per episode; each command's output is truncated to its last 1500 characters, so strong solutions inspect with head and do the work in a script.
  • {"answer": "done"} ends the episode and scores the workspace.

Observations carry the command output, the commands left and. There is no reminder text. Replies that are not a single JSON object end the episode, which is then scored on the workspace as it stands.

Reward

Terminal and in [0, 1]. Every verifier is a weighted set of independent sub-checks recomputed from the task inputs, so partial progress earns partial reward and only a fully correct deliverable scores 1.0. References live only inside the image, agent commands run as an unprivileged user with memory and file-size limits, and verifiers that execute agent code do so in a subprocess with a timeout. An untouched workspace scores at most 0.25 on every task.

Calibration

Tasks were measured with Qwen3.8-27B (thinking off) inside a tool-calling GRPO training harness, because pass rates there differ a lot from a strict JSON-reply driver (the two correlate only 0.25 per task). Every task in the 150-task image got 4 samples in a validation pass, and tasks that were later trained on got 8 to 24 more. The 34 training tasks are the ones whose pooled pass rate (shrunk toward the pool mean) falls mostly between 0.1 and 0.55.

  • Pooled mean pass@1 of the 34 tasks: about 0.42 (an upper estimate, since selecting low observed rates regresses upward). A 27B training run on a close earlier version of this blend started at a validation score of 0.42 and a train reward of 0.44 to 0.50 over its first three steps.
  • Hardest tasks sit near 0.05 to 0.2 (science and math), easiest near 0.55 to 0.65, so reward can rise gradually instead of starting saturated.
  • Every task runs bare: no reply-format reminder and no per-step hint.
  • Prompt text: the task statements and the three global strings were rewritten by Qwen3.8-27B from the original statements under strict gates (every number, file name, identifier, quoted string and JSON example must survive verbatim). Difficulty of the rewrites was not re-matched task by task.
  • No transcript in the profiling runs touched verifier or task source.

Domains

Domain Skills exercised
software multi-file bug fixing against hidden tests, implementing modules from a spec, CLI conversion, migration scripts, simulator debugging, performance and dependency problems
industrial sensor log analysis and fault reports, control tuning by simulation, pipe and pump sizing, tariff billing, inventory policy, flow-line simulation
science curve and rate fitting, sequence analysis and protein mass, ODE integration, hypothesis tests, titration equilibria, spectral analysis
office payables reconciliation, meeting-minutes extraction, room scheduling, expense audits, payroll, contact deduplication
finance amortization, market-data analytics, ledger audit, bond pricing, tax lots, FX arbitrage
math exact number theory, proofs by computation, assignment optimization, shortest routes, constructive codes, absorbing Markov chains, impartial games
security log incident analysis, hardening vulnerable code, layered-encoding and crypto forensics, detection rules, advisory matching (all synthetic, defensive)
media subtitle retiming, image pipelines, audio synthesis, SVG charts, timecode conformance, markdown to RSS

Files

  • tasks.jsonl: task_id, domain, prompt for each of the 34 training tasks, in training order (domains interleaved).
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