How can a pilot expose a scope boundary without implementing an entire finance system?

An insurance finance officer reviews expense entry EXP-2187, which assigned an assessor's invoice to the wrong cost centre. The original entry belongs to a closed reporting period. The pilot policy permits an approved reclassification in the current open period but provides no route to reopen the earlier period.

The officer drafts adjustment ADJ-0412 with a reference to EXP-2187 and submits it to a finance manager. After approval, posting changes the current-period cost-centre allocation while preserving the closed-period entry. The correction report explains the relationship between the two records.

A request to reopen the period returns an explicit unsupported-action response. The agent must use the permitted route or report that the requested historical change is outside scope. It cannot silently redefine the accounting calendar.

This pilot boundary keeps the environment manageable while retaining a meaningful authority constraint. A buyer can inspect whether the limitation is visible in policy, tool behaviour and evaluation criteria, rather than discovering it through an unexplained failure during an agent run.