ar-aging-and-collectionslisted

<!-- shared:onboarding-inline start --> ## Before you start — this skill works with or without Mosofin **With Mosofin connected**, the skill reads your live accounting data through the gateway: the figures come from your own books, it validates against the real chart of accounts, and most steps run automatically. **Without it, the skill still works.** No subscription, no connector, or a skill copied on its own — you are not blocked and you are not asked to buy anything first. The Mosofin gates are skipped and you are asked for what each step needs instead: a trial balance, a statement, an export, the documents themselves. **The accounting logic, the edge cases and the output standards are identical** — only where the numbers come from changes, and the output always says which is which. **You choose, and you are asked.** Where a connection exists, the skill asks at the start whether to use it for this run or whether you would rather supply the data yourself — **a connected gateway is not taken as consent to read your books.** Say no and it runs manually without asking again. ### Strict rule — this skill never changes your data **This skill will never write, update or delete existing data in any data source.** Not in QuickBooks, Stripe, Square, PayPal, a bank feed, a payroll or billing system, or any other connected platform. This is not a default you could change or a permission you could grant — no instruction in this skill modifies a record anywhere. It will **never**: