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Terminates (destroys) a running playground session. Use when you need to shut down a playground.
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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-playground |
| description | Terminates (destroys) a running playground session. Use when you need to shut down a playground. |
| argument-hint | <playground-id> |
Destroy the playground $0.
labctl playground destroy $0
This terminates the ephemeral playground for good.
NEVER use labctl playground stop — avoid it by all means. stop does NOT terminate the playground: it suspends it, preserving its state for a later resume, so the session keeps lingering around. The ephemeral playgrounds used for content authoring and testing must always be terminated with labctl playground destroy.