Each skill is a folder you add to Claude: written instructions, a small script that does the arithmetic, example data and tests. Claude follows the steps, the script calculates, and your reviewer signs off before anything is used.
How they're built
- Numbers come from code, not from the model. Every match, total and split is calculated by a script, and Claude is told never to retype a figure.
- Every skill says where it stops. Nothing posts to your ledger, sends an email or pays a bill. It proposes, a person approves.
- Every skill says what the reviewer checks, and when to stop and ask: missing inputs, sources that disagree, amounts over your materiality, and policy calls.
- Tested four ways: a normal run, a missing input, conflicting sources and a case that must stop.
- Plus four Excel workbooks for teams not using Claude yet: close checklist, accruals schedule, prepaid roll-forward and flux review.
What's inside
Reconciliations
01Bank Rec ReviewerTies the bank statement to GL cash, ages what is outstanding and gives every break a source, an owner and a next step.
02Card RecTies the card statement to your books and lists unrecorded charges, missing receipts, miscoded spend and timing items.
03Clearing Account InvestigatorExplains a processor clearing balance by payout: what is in transit, which fees and chargebacks are unbooked, what is untraced.
04Intercompany MatcherMatches two entities' intercompany lines, separates timing, FX and true mismatches, and lists eliminations for what agrees.
22Balance Sheet Roll-ForwardRolls fixed assets, prepaids, accruals, debt and equity from opening to closing by activity type and flags anything that doesn't tie.
Accruals and cutoff
05Accruals BuilderProposes accruals for goods and services received but not billed, with support per line and next month's reversal.
06Project Accrual TrackerTurns PM answers on uninvoiced vendor work into project accruals and a WIP schedule showing over and under billing.
07Prepaid AmortizationRolls the prepaid schedule forward, drafts the monthly amortization entry and ties every prepaid account to the GL.
08Cutoff TesterChecks bills and invoices around period end against receiving and shipping dates and flags anything in the wrong month.
Reporting and variance
09Variance DecomposerSplits a revenue or margin change into price, volume, mix and FX in code, and shows any residual instead of plugging it.
10Variance Commentary DrafterDrafts variance commentary from causes in your data, fills every number from the calc and turns unknowns into owner questions.
11Flux ReviewCompares two trial balances against your thresholds and lists the lines that need an explanation, with owners.
12Report Tie-Out CheckerTies every number in a board pack to the trial balance and flags breaks, untraced figures and subtotals that don't foot.
21Financial Statement BuilderDrafts the income statement, balance sheet and cash flow from your TB and mapping, tied to the ledger, with unmapped accounts flagged.
25Workbook Integrity CheckerFinds typed numbers among formulas, broken patterns, errors, external links, hidden rows and totals that don't foot, by cell.
Cash, AR and AP
13AR Follow-Up DrafterRanks overdue customers, drafts a polite follow-up for each aging bucket and routes disputes to their owners. Never sends.
14Cash Application MatcherMatches customer payments to open invoices, including combined payments and short-pays, and lists unapplied cash with reasons.
15AP Duplicate DetectorFinds bills that may have been entered or paid twice and shows the evidence for each pair before the next payment run.
16Cash Forecast RollerRolls your 13-week cash forecast forward: last week's actuals vs forecast, a bank tie-out and updated weekly ending cash.
Close management and controls
17Close Checklist BuilderTurns your close calendar into dated tasks with owners, flagging broken dependencies and anything past the deadline.
18JE Support PackagerBuilds the support package behind a journal entry: tie-out, source documents, rationale and sign-off.
19Audit PBC PreparerMaps the auditor's PBC list to the files you have, what's missing, who owns it and when it's due.
20Close Procedure DocumenterTurns a walkthrough of a close task into a written procedure, including the steps nobody wrote down.
23GL Export CleanerTurns a messy GL or TB export into a clean standard file, lists every row it removed and why, and ties it to the export's totals.
24Journal Entry ReviewerRanks the period's manual journal entries by risk flags, with the reason for each, so review starts where it matters.
Get the pack
One download with all 25 skills, four Excel workbooks, the example data and the tests.
Rather we ran it on your numbers?
Pick one of these workflows and we'll rebuild it on last month's files, under NDA, with no build fee. You check our output line by line against what your team did.