Configuration
- Completion key — string, supports
{assign_key}interpolation (same syntax as Flow Log). Use the same template as the upstream Completion Guard. Takes precedence over the assign below. - Completion key assign — alternatively, name an assign whose raw value is the key — the natural choice when the key is an external reference string produced by an earlier step. Configure the upstream Completion Guard with the same assign.
Tips
- Idempotent — running twice for the same key does nothing the second time.
- Place this node after the work that should be guarded. If any upstream node fails or skips the branch, this writer never runs and no marker is recorded.
- Leaving both key fields blank logs a warning and no-ops.