How to

Check the runtime

Verify required tools before workflow commands run.

What changes

Doctor checks the CLI runtime and reports missing required tools. It is the first command to run when setup fails or a workflow command exits before doing useful work.

When this helps

The CLI cannot start on this machine.
A workflow command fails before reaching its own validation.
You want an evidence-based setup check before changing docs, specs, or delivery state.

Run this command

terminal

$sumr doctor# check runtime requirements

Flags you can use

--help, -h

Show the command syntax, supported flags, and examples without changing files.

Keep in mind

Public checks focus on the runtime. Some team builds may include additional checks.
Fix doctor failures before debugging Playbook, Mission, or Kontract behavior.