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Stops the current solution attempt for a challenge. Use when you need to stop a running challenge.
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Based on SOC occupation classification
Debugs an existing challenge by starting it, inspecting tasks, troubleshooting over SSH, fixing source files, and restarting. Use when a challenge's tasks are failing or hanging.
Gets detailed status and output of a specific examiner task on a playground. Use to debug why a task is failing.
Lists all examiner tasks (init and regular) for a playground. Use to check the status of challenge/tutorial tasks.
Executes a command on a playground VM via SSH. Use when you need to run commands on a playground for testing, debugging, or verification.
Applies a scripted solution to a running challenge (single- or multi-VM) and verifies every non-helper task completes. Use to validate a .solution.sh / .solution-NN.sh end-to-end.
Starts a challenge playground session. Use when you need to launch a challenge for testing or solving.
| name | stop-challenge |
| description | Stops the current solution attempt for a challenge. Use when you need to stop a running challenge. |
| argument-hint | <challenge-name> |
Stop the challenge $0.
labctl challenge stop $0
This stops the current solution attempt and its associated playground.
If the command fails but the challenge's playground is still running, force the teardown with labctl playground destroy <playground-id> (find the ID with labctl playground list --filter challenge=$0). NEVER use labctl playground stop — it only suspends the playground instead of terminating it.