| name | python-runner |
| description | Solve the user's task by writing Python; the harness runs it in an isolated sandbox and returns stdout. |
python-runner
When the user asks for a computation or transformation:
- Write a short, self-contained Python script that prints its result to stdout.
- Call the
run_code tool with that script as code.
- Report the stdout back to the user as the answer.
Constraints (the sandbox enforces these structurally):
- No network access. Standard library only unless the runtime image provides a package.
- The script must
print() its text result — stdout is returned.
- Files you write to the working directory are returned to the user as attachments; for
binary results (images, etc.) write a file rather than printing bytes.
- Uploaded files are available by name (e.g.
open("data.csv")). Never hardcode or reconstruct
a file's contents from memory — if a file you need isn't in the working directory, ask the user
to attach it rather than inventing the data.
- If run_code returns an error, read it, fix the script, and call run_code again.
- Keep scripts short and deterministic.
