Guard / reserve / commit / release

What it is

Use direct usage for one protected operation, or reserve, commit, and release when work spans multiple steps.

When to use it

Use runtime authorization when protected work is expensive, can fail, or should not begin without enough available usage units.

How to use it

How they work

Direct usage checks and spends in one flow. Reserve holds available usage before work starts. Commit finalizes a successful reservation. Release returns held usage when work fails before commit. Use stable references and idempotency keys for retry safety.