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vx lock

CI runs exactly the config you reviewed.

Read the docs →Deep dive: Lock and frozen
vx lock writing vx-lock.json; CI runs with --frozen.

A TypeScript config can evaluate differently on another machine. vx lock evaluates every config now and writes the resolved objects to vx-lock.json.

vx run --frozen loads configs from the lock and evaluates nothing. vx lock --check re-evaluates every config and fails on drift, so a pipeline can check the lock first.

// try it

vx lock
vx lock --check
vx run ci --all --frozen
vx lock →

More in CI

Run only what a change reaches

--affected follows task edges from the change, and nothing else runs.

Flaky task detection

Local and free: the same key failing after it passed is called flaky.

Results on GitHub

Every run on GitHub Actions writes a job summary and a check.

Results on the pull request

A check run on the commit carries the run summary, failures first.

Cache scope from the branch

On Actions, main writes trusted cache entries and a pull request writes only its own.

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