Hire an AI inventory cost and margin reviewer

Everything it can hand back

Your task sets the actual outputs. The specialist picks the methods that cover them.

• A FIFO comparable inventory, cost of goods sold and after-tax earnings view, if LIFO applies
• Gross margin as reported and with inventory charges taken out, kept apart
• Operating cash invested in inventory, with noncash movements taken out
• A check that no charge or reserve change was counted twice
• Missing facts, and checks that could not run

How it does the job well

• Reconcile to source documents, such as bank statements, ledgers and invoices, before reporting.
• Show the calculation, inputs and period for every figure.
• Label actuals, estimates and forecasts clearly.
• Send tax, legal and regulatory questions to a qualified professional.

Mistakes it avoids

• Mixing cash and accrual figures, or different periods, in one comparison.
• Rounding or formula errors that do not tie back to totals.
• Giving personal investment advice.

What a good result looks like

An example, not your task: You compare two companies that cost inventory differently, such as LIFO and FIFO.

• LIFO TO FIFO. FIFO inventory and cost of goods sold, the margin and tax effect, and any reserve liquidation flag.
• CHARGE BRIDGE. Reported margin and margin excluding inventory charges, with reversals and LIFO effects kept apart.
• CASH IN STOCK. Change in inventory less noncash movements, and its cash flow effect.
• SOURCES. Each input with its note or page, date, currency and scale.
• MISSING and CHECKS MISSED. Each gap and the line it stops, and every check that failed or could not run.

How the work is checked

• Reported-to-comparable COGS reconciles with no double-counted charge; LIFO is not applied as an IFRS costing method; noncash inventory movements do not become cash investment.
• Trace each material input to its source, date, currency, scale, sign and reporting period. Retain unresolved MISSING: lines.
• Reconcile opening balances, additions, deductions and closing balances. Confirm the LIFO reserve and inventory note periods match the period of the income statement cost of goods sold.
• Keep hardcoded inputs separate from live formulas. Inspect changed inputs, actual recalculation, exported formulas and saved-file reopening.
• States which checks passed, failed or could not run, and names missing inputs.

These checks have not been run against a model yet. Your AI uses them to check its own work.

Capabilities

• LIFO reserve earnings bridge. Confirms US-GAAP LIFO use, adds the closing reserve to inventory, and takes the operating reserve increase off cost of goods sold to estimate FIFO. Reconciles the margin and tax effects. Hands step 2 the comparable cost of goods sold. Check before moving on: acquired reserves, currency and liquidation are flagged.
• Inventory charge margin bridge. Finds write-downs and reversals inside the chosen cost of goods sold, nets them, and shows margin with and without the charge. Keeps LIFO effects apart and flags any overlap. Reported margin stays primary. Hands step 3 the identified noncash write-downs.
• Noncash working capital bridge. Takes the change in reported inventory and removes acquisitions, currency, write-offs and other noncash movements. Reverses the sign to give the cash flow effect. Uses reported balances, never the restated FIFO ones, for the cash result.

How the role works

1. Checks your task, context and available tools.
2. Picks the methods needed and prepares a work plan.
3. Carries out supported tasks, with each method's limits and review gates.
4. Checks the real deliverables and corrects supported faults.
5. Hands back files, evidence and unresolved gaps.

Your specialist's working setup

Download the base specialist without a task form or account. README.md and SETUP.md explain how to use the folder. SOUL.md defines its scope. INTAKE.md asks missing questions inside your AI. PLAYBOOK.md, SKILLS.md, BEST_PRACTICES.md, CHECKS.md and HANDOFF.md guide the work and its checked deliverables.

Complete associated skills, supporting files and licences are included. Choose only the methods needed for the actual task. Keep context, working files and accepted feedback in your AI project.

Use this specialist through MCP or the API

Call prepare_specialist with role_id explain-inventory-accounting-margin-effects only. No task is required to load it. Your AI asks what job you need done, what you want back and which relevant context it can use.

For task-led hiring, call find_specialist, explain the suggested specialists and let the user accept or change the team.

Complete ZIP: Download base specialist. API: GET /api/v1/specialists/explain-inventory-accounting-margin-effects/pack. The host AI supplies its own model, tools and execution; a pack does not connect accounts or run a task.

Inputs and helpful context

The specialist starts from the task brief. Only active methods require their inputs.

For the primary method, when used

• LIFO inventory, opening and closing LIFO reserves and the tax effect, where the company uses LIFO (from the inventory note)
• Reported revenue and cost of goods sold (from the income statement)
• Inventory write-downs and reversals, and the line they sit in (from the notes)
• Opening and closing inventory balances (from the balance sheet)
• Notes on acquisitions, currency and other noncash movements (from the filing)
• The reporting dates, currency and scale, such as USD millions

Helpful context (optional)

• The full inventory and cash flow notes, not only the headline statements.
• Two or more years of the same company, so changes show.
• A named reviewer who knows the company's accounting.

Tools and access

• A spreadsheet engine and file-capable AI: Builds a workbook with inputs, formulas and a checks tab you can click into. In plain chat it returns the same tables as text and says no workbook was made.
• A spreadsheet engine and file-capable AI: Create, recalculate, render and reopen the requested native workbook.
• Node.js 20 or later: Run the bundled dependency-free reference calculation against explicit numeric inputs.
• Node.js 20 or later: Optional: only to run the bundled reference calculation script. The skill works without it.

Functions and deliverables

• Inventory cost and margin reviewer: Check stock reserve changes and charges before comparing margins. Keep noncash changes separate from cash spent on inventory.
  • A FIFO comparable inventory, cost of goods sold and after-tax earnings view, if LIFO applies
  • Gross margin as reported and with inventory charges taken out, kept apart
  • Operating cash invested in inventory, with noncash movements taken out
  • A check that no charge or reserve change was counted twice
  • Missing facts, and checks that could not run
• LIFO to FIFO comparison calculator: Share stock figures and LIFO reserves. Compare stock, costs and profit using a FIFO view.
  • FIFO inventory, which is LIFO inventory plus the closing reserve.
  • FIFO COGS, which is LIFO COGS less the rise in the reserve.
  • The gross margin and after-tax earnings difference, tied to reported figures.
  • A flag when the reserve fell, so the gain is not shown as growth.
  • An editable workbook, if you ask for one, plus a list of missing inputs and unrun checks.
• Inventory write-down margin checker: Share sales, costs and stock write-downs. See their effect on reported gross profit and margin.
  • A reported-to-charge-excluded gross-margin bridge with recurring-cost cautions.
  • An editable workbook of the inventory charge margin bridge, with its inputs, formulas and test cases to rerun.
  • A tie-out of reported margin and the charge-excluded margin, the inputs still missing and the checks that ran.
• Working capital cash change checker: Share working capital and noncash changes. Find the cash used after removing takeover, currency and write-off effects.
  • The operating investment in working capital for the period, and the matching cash-flow effect with its sign.
  • An editable workbook of the working capital investment, with its inputs, formulas and test cases to rerun.
  • A tie-out of the balance change and the noncash movements, the inputs still missing and the checks that ran.
• me.md builder: Answer a few questions, or let your AI use what it remembers. Get one private file that tells any AI who you are.
  • One me.md file with up to ten dated sections
  • A list of facts taken from memory, for you to check
  • A short note of what it removed for privacy
  • The two next steps, to save it and set it up

Tasks you can use it for

• You compare two companies that cost inventory differently, such as LIFO and FIFO.
• A company's gross margin moved and you suspect write-downs or a reserve change, not selling prices.
• Inventory on the balance sheet changed and you want the cash really put into it.
• A reviewer asks that no charge or reserve change is counted twice.

Limits to check before starting

• The company reports under IFRS or does not use LIFO. Skip step 1 and use the Inventory write-down margin checker and the Working capital cash change checker instead.
• You want to judge whether inventory is valued correctly or what reserve to hold. This explains disclosures. It does not value stock.
• You want wider working capital and tax cash. Use the Working capital and cash tax checker workflow.
• Revenue, not cost, moved. Use the Comparable revenue growth checker workflow.
• You do not have the filings. Every figure has to come from the notes.

Best way to use this role

Give it one clear outcome, the actual files and a definition of done. Keep the work in one AI project so it can reuse checked context and earlier files.

• Download the workflow pack and give it to an AI that can read files, such as Claude, ChatGPT or Gemini. Use one that can make spreadsheets if you want a workbook.
• Attach the annual report pages: income statement, balance sheet, the inventory note and the cash flow notes. Say if the company uses LIFO.
• After step 1, check that the reserve was added to inventory and that reserve changes from acquisitions or currency were taken out of the operating movement.
• After step 2, check each write-down sits in the same cost of goods sold line, and that no charge is also inside the LIFO adjustment.
• After step 3, check noncash movements were not counted as cash. Fill every MISSING line. This explains disclosures. It is not valuation or advice.

Read it as data

Read the complete role setup as JSON. Connect your AI to the AI Blocks MCP library and read aiblocks://roles/explain-inventory-accounting-margin-effects for its role instructions and pinned sources.

This is a prepared AI role. No task has run. Your AI carries out authorized work using its available tools and reports the actual deliverables and checks.