The harness connects context, tools and checks around the model.
A goal. Actions. Results to verify.
FIG. 01 CUTAWAY VIEW
Preparing the sketchbook…
DRAWING THE WORKSHOPBLUE WORK PACKAGE / PENCIL WORKSHOP
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Define the outcome.
You set the goal, the expected result and the criteria used to check it.
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Reduced motion: static view. You can still explore the steps above.
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If execution is blocked, the human handoff includes previous attempts, the blocker and the decision needed. A test that did not run has an unknown result; it is not a failed test.
This cutaway is a teaching metaphor. The Crew represent roles: a harness can run with a single agent. The pipe represents returning observations, not retraining the model. Tools, checks and human approvals depend on the system. Observations inform the next decision; a passing test alone does not establish that the whole request has been fulfilled.