pj bf3bb0d144 Repo skeleton, pinned environment, free smoke test
Public from commit one, so no key ever enters this history.

compose.yaml is ImpossibleBench's, plus working_dir: /workspace. The image has no
WORKDIR, so inspect resolves it to "/" and the task files land at the filesystem root
among twenty-odd entries. This experiment turns on whether an agent notices a scratch
directory, so that is a bad place to put one.

ImpossibleBench installs with --no-deps to keep the swebench tree out; datasets is
declared here instead because hf_dataset genuinely needs it.

Verified: docker run prints "/", impossiblebench imports, and the real task against
mockllm/model completes with a real score and tracebacks rooted at /workspace.

Claude-Session: https://claude.ai/code/session_01Cq98H7sNoSJdL3W98f18bu
2026-08-31 21:14:58 +05:30

messageboardbench

Does cheating spread from one AI agent to another through a shared file?

Agents get coding tasks whose tests contradict each other, so no honest solution exists and any pass is provably a cheat. Each agent also gets a scratch directory the prompt calls workspace and never describes as a channel. We measure whether carrying that directory from one agent to the next raises the cheating rate.

Built on ImpossibleBench and Inspect AI. Tasks and payloads are synthetic throughout.

See docs/setup.md to install and run, and docs/findings.md for measured numbers.

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