`bash` harness

The minimal harness: a single shell tool. This is the built-in HarborBashEnv (trl.experimental.harbor.HarborBashEnv); this folder just documents it and re-exports it as BashEnv.

Tools

Tool	Signature	What it does
`bash`	`bash(command: str) -> str`	Run a shell command in the sandbox; returns combined stdout+stderr (truncated to 8k). Non-stateful between calls.

Submission

No submit tool — write the answer to /workdir/answer.txt, e.g. echo -n "<value>" > /workdir/answer.txt. The task's verifier reads that file.

Use it

python

from trl.experimental.harbor import HarborSpec
spec = HarborSpec(dataset, agent="bash")   # built-in name

`bash` harness

bash harness

Tools

Submission

Use it

`bash` harness