What it does for you: It runs one of Factory's four built-in test fixtures as a real process, with limits on time and output. It records exactly what happened as Evidence and leaves the judgement to Assurance.
Plate 1, position 4, Plumb at the bench: a small closed toolbox. The plate is shown whole.
How it links: Takes a pinned request, a live fence hold and a private workspace from Guarded verification / recovery and Attempt fence / workspace, for one Attempt as Execution names it · Gives the stored process Evidence to Evidence / Assurance.
Honest limits:
- It runs only the fixed fixtures (pass, fail, hang, noisy). It is not a sandbox for arbitrary code.
- If a process cannot be confirmed stopped, or its folder holds something unexpected, the worker leaves it in place and says so. It does not claim cleanup.
- Tested on one macOS host with Node 26.8.1. Power loss has not been tested.
Status: Accepted for fixed trusted fixtures (local review, 28 September 2026). Local infrastructure only: not a release or a customer benefit, and all 27 epics remain open.