Runtime status
Instruction Skills run today, end to end: author, pack, publish, install, run. Python and Node Skills do not — the project format and validator ship, but the runtime that executes them does not, and Cmdop never falls back to running an executable Skill unprotected. You can still author, validate, and pack one.
Not every kind of Skill runs today, and the difference matters before you invest in authoring one.
Runtime support
| Kind | Runs today |
|---|---|
Instructions (--kind prompt) | Yes. This is the shipped path end to end: author, pack, publish, install, run. |
| Python / Node (executable) | Not yet. The project format and validator ship; the runtime that executes them does not. |
Why executable Skills wait
Running someone else’s code on your machine needs an enforcing isolation runtime, and Cmdop will not ship the execution before the enforcement. Until it does, missing isolation is never replaced with host execution — Cmdop does not quietly fall back to running an executable Skill unprotected.
The practical consequence: a packed artifact, a marketplace listing, and a
SKILL.md you found on disk are none of them permission to run host code, and
Cmdop does not treat them as such.
You can still author, validate, and pack an executable Skill today. Only the running of it waits.
The authoring commands never execute anything
create, check, and pack are a deliberate offline boundary. They read and
validate a declared contract; they do not start an interpreter, install
dependencies, or reach the network.
cmdop skill --help
cmdop skill check --helpThat is what makes check safe to run against a project you did not write.
Running an installed Skill
Once an instructions Skill is installed, cmdop run invokes it by name:
cmdop run <skill-name> "your request"This is the runtime side, not the authoring side. Installing is covered in Marketplace and installed state.
Related
Common questions
Which Cmdop Skills run today?
Instruction Skills run end to end today: author, pack, publish, install, and run. Python and Node executable Skills can be authored and validated, but they do not run yet.
Why do executable Skills not run yet?
Executable Skills need an enforcing isolation runtime before Cmdop will run someone else’s code on a host. Cmdop does not fall back to unprotected host execution.
Does cmdop skill check execute a Skill?
No. Authoring commands read and validate the declared contract. They do not start an interpreter, install dependencies, or reach the network.
Cmdop