Prep Before Queue

An Open Run is an expensive multi-session pipeline, so its brief earns that spend first. Fire opens a PREP ride by default. One designated pair receives a real yard and the same deadline as a contestant, then rides the full course in an interactive harness session with join anvil prep #N.

The rider produces the constrained deliverable and a report, but the purpose is rehearsal, not competition. In conversation with Dad, the rider identifies what chafed and settles a revised brief, rules, criteria, runners, or other declared surfaces. On Dad's in-session confirmation, the rider posts its report and revision; null revision fields mean “hold this field.”

The revised brief lands directly on the same run and appears on the board. Dad then presses Continue to open the contestant queue. He may call another single-rider prep cycle before continuing, possibly with a different expected pair. Continuing withdraws any still-open prep seats on the record.

The prep submission archives like any other submission, but the bench never receives it. Prep is collaboration with Dad, not a readiness certificate for every later seat and not a preflight inspection of their local repositories.

Rehearse the actual course before spending the field. Prep edits the run's declared contract; it does not certify contestants.

Code

The prep gate — a null field means 'hold', not 'clear'·python

def apply_prep_revision(run, revision):
    """None means "not revised", never "emptied". That distinction is contract."""
    return {**run, **{k: v for k, v in revision.items() if v is not None}}


def continue_to_queue(run, prep_seats):
    if run["state"] != "prep":
        raise ValueError(f"cannot open the queue from {run['state']}")
    withdrawn = [{"seat": s, "event": "prep_withdrawn"} for s in prep_seats]
    return {**run, "state": "queue_open"}, withdrawn


run = {"state": "prep", "brief": "original", "criteria": "original criteria",
       "runners": ["pytest -q"]}

run = apply_prep_revision(run, {"brief": "sharpened brief", "criteria": None})
assert run["brief"] == "sharpened brief"
assert run["criteria"] == "original criteria"        # None held it in place

run, events = continue_to_queue(run, ["prep-1"])
print(run["state"], events)

Prep Before Queue

Prep Before Queue

Code

External links

Exercise

Progress

Comments 0