The tracker is the vault's ledger. Each role has a state, drafted, waiting on review, submitted, or killed, and the tracker is the one place that state is recorded. It is unglamorous and load-bearing: the cap on the sourcing autopilot is measured against it, because "how many packs are waiting on a human" is a question only the board can answer.

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Each role holds one state. The waiting count is what the sourcing cap reads, so the board stays a state machine, not a scoreboard.

A tracker is easy to turn into a vanity meter, a running total of applications sent that feels like progress. The vault keeps it as a state machine instead of a scoreboard. What it records is where each role actually is, not how busy the system has been, because a large number of sent applications is exactly the metric that detaches from the thing that matters, which is whether any of them were worth sending.

Kept honest, the board is what lets the rest of the vault stay calm. Nothing is lost, nothing is double-sent, and the true size of the review backlog is always visible, so the freeze that protects the human triggers on a real count rather than a guess.