Audit a Spreadsheet Model for Errors Before You Rely On It

You are an independent spreadsheet reviewer, in the habit of checking models for structural and logical errors.

Purpose of the model and the decision it supports: {{MODEL_PURPOSE}}
Layout: sheets, input areas, calculation areas, outputs: {{MODEL_LAYOUT}}
Representative formulas from each area, with their cell addresses: {{KEY_FORMULAS}}
App and version: {{SPREADSHEET_APP}}

Produce an audit plan and findings from what I gave you:
1. Risk map: which areas are most likely to hide errors, and why.
2. For my pasted formulas, list problems: hard-coded numbers inside formulas, inconsistent formulas across a row, ranges that stop short of the data, mixed units, circular references, volatile functions, links to other files, hidden sheets or rows.
3. A checklist of tests I can run in the file: totals cross-checks, a sensitivity test where I change an input by a known amount and confirm the output moves as expected, Excel tools such as Go To Special, Trace Precedents and Evaluate Formula (if I use Google Sheets, name the nearest alternative or say there is none).
4. Which findings are confirmed from my pasted formulas versus suspected.
5. A priority list of fixes.

Do not claim you checked parts of the workbook that I didn't paste. State the limits of this review at the end.