groupsplit

Drive the GroupSplit CLI (`groupsplit`) for shared expenses: groups, members, expenses, balances, settlements, split rules, categories, receipt files, itemised receipts, invitations, linked bank accounts and imported bank rows. USE FOR: splitting expenses, reading balances or ledgers, recording expenses or settlements, itemising receipts, managing members or invitations, or filing imported bank rows; or whenever a `groupsplit` binary or `~/.config/groupsplit/config.json` is present. DO NOT USE FOR: working on the GroupSplit codebase itself -- builds, tests, Aspire, EF migrations -- or other expense trackers. COVERS: the JSON contract, exit codes, the exit-4 confirmation gate, and token auth without a browser. ROUTES TO: groupsplit-inbox for turning imported bank rows into expenses.

Turn imported bank rows into GroupSplit expenses without recording the same money twice. USE FOR: the GroupSplit inbox, imported or synced bank rows, filing a bank row as an expense, reconciling a card statement against what a group already recorded, a POSSIBLE_DUPLICATE_EXPENSE refusal, `groupsplit inbox`, `groupsplit bank`, pending receipt attachments, or `groupsplit transactions bank-matches`. DO NOT USE FOR: recording an expense somebody typed (that is `transactions create`), balances, settling up, or anything else in the CLI -- use the groupsplit skill. REQUIRES: the groupsplit skill for the JSON contract, exit codes and the confirmation protocol. Read it first.