Excel Analyst Pro
Overview
Build reviewable finance workbooks without inventing source data, silently
changing workbook features, or claiming calculations that were not recalculated.
Only Read is preapproved by this entrypoint; use other tools only when they are
available, needed, and authorized in the active harness.
Prerequisites
- Supplied financial evidence or an existing workbook appropriate to the request.
- An agreed output path, currency, units, and period convention.
- For artifact creation, an authorized spreadsheet tool that passes the capability
gate in the tooling reference.
Instructions
Route the request
Read only the references needed for the current request:
- Before any workbook write, read the artifact contract.
- For a DCF, read DCF modeling.
- For an LBO, read LBO modeling.
- For budget, forecast, or period variance, read variance analysis.
- When selecting or checking spreadsheet tooling, read tooling boundaries.
Native pivot tables, charts, slicers, What-If Data Tables, and other Excel-only
objects are outside the bundled adapter's supported surface. Explain the boundary
and offer a formula-backed summary table or a tool-neutral implementation plan.
Never claim an unsupported artifact was created.
Shared workflow
- Confirm the requested mode, input files, output path, reporting currency,
units, period convention, and decision the workbook must support.
- Inventory the input workbook before editing. Work on a copy unless the user
explicitly authorizes in-place modification.
- Separate supplied facts, sourced facts, user-approved assumptions, formulas,
and unresolved gaps. Ask for material missing inputs; do not fill them with
static industry defaults.
- Build the smallest workbook that answers the request. Put assumptions in
visible cells, link formulas to them, and include the checks required by the
relevant reference.
- Recalculate with a capable spreadsheet engine when available. Otherwise mark
calculated values as unverified and do not present stale cached values as final.
- Reopen and inspect the saved artifact. Verify its paths, sheet names, formulas,
key outputs, errors, balances, and preservation receipt.
- Return the artifact path, a concise result summary, assumptions and sources,
verification status, preserved or changed features, and any blocked evidence.
Stop conditions
Stop before writing when the source file cannot be read safely, the output would
overwrite a file without approval, required financial inputs are missing, or the
available tool cannot preserve an in-scope workbook feature. Stop before a final
valuation or return claim when recalculation or formula verification is unavailable.
Output
Return the saved workbook path when an artifact was created, followed by the key
result or blocked result, evidence and assumption summary, model-check status,
recalculation status, and preservation receipt. Never imply that an unverified
cached value is final.
Examples
- “Build a five-year DCF from this forecast and debt schedule; save a new file.”
- “Model this acquisition using the attached term sheet and operating case.”
- “Compare this quarter's actuals with the approved forecast; do not infer causes.”
A request for “a pivot chart by region” is outside this skill's artifact surface;
offer a formula-backed summary or explain what additional tool is required.
Error Handling
On invalid inputs, unsafe paths, unsupported workbook features, formula errors, or
missing recalculation, stop at the relevant boundary and return the exact problem,
what remains unchanged, and the smallest evidence or capability needed to proceed.
Resources
These references are deliberately separate so unrelated model logic stays out of
context:
- Artifact contract for evidence, preservation,
recalculation, and verification.
- DCF modeling for DCF inputs, formulas, and checks.
- LBO modeling for transaction, debt, and return logic.
- Variance analysis for signs, materiality, and commentary.
- Tooling boundaries for adapter capabilities and handoffs.
1---2name: excel-analyst-pro3description: Create or revise local Excel workbooks for DCF valuation, LBO returns, or budget-versus-actual variance analysis when the user explicitly requests a spreadsheet artifact. Use when evidence-backed finance models need reviewable formulas and checks. Trigger with explicit requests for a DCF, LBO, or variance workbook. Do not use for native pivot tables or charts, live market data, or generic financial advice.4license: Proprietary5---67# Excel Analyst Pro89## Overview1011Build reviewable finance workbooks without inventing source data, silently12changing workbook features, or claiming calculations that were not recalculated.13Only `Read` is preapproved by this entrypoint; use other tools only when they are14available, needed, and authorized in the active harness.1516## Prerequisites1718- Supplied financial evidence or an existing workbook appropriate to the request.19- An agreed output path, currency, units, and period convention.20- For artifact creation, an authorized spreadsheet tool that passes the capability21 gate in the tooling reference.2223## Instructions2425### Route the request2627Read only the references needed for the current request:2829- Before any workbook write, read [the artifact contract](references/artifact-contract.md).30- For a DCF, read [DCF modeling](references/dcf.md).31- For an LBO, read [LBO modeling](references/lbo.md).32- For budget, forecast, or period variance, read [variance analysis](references/variance.md).33- When selecting or checking spreadsheet tooling, read [tooling boundaries](references/tooling.md).3435Native pivot tables, charts, slicers, What-If Data Tables, and other Excel-only36objects are outside the bundled adapter's supported surface. Explain the boundary37and offer a formula-backed summary table or a tool-neutral implementation plan.38Never claim an unsupported artifact was created.3940### Shared workflow41421. Confirm the requested mode, input files, output path, reporting currency,43 units, period convention, and decision the workbook must support.442. Inventory the input workbook before editing. Work on a copy unless the user45 explicitly authorizes in-place modification.463. Separate supplied facts, sourced facts, user-approved assumptions, formulas,47 and unresolved gaps. Ask for material missing inputs; do not fill them with48 static industry defaults.494. Build the smallest workbook that answers the request. Put assumptions in50 visible cells, link formulas to them, and include the checks required by the51 relevant reference.525. Recalculate with a capable spreadsheet engine when available. Otherwise mark53 calculated values as unverified and do not present stale cached values as final.546. Reopen and inspect the saved artifact. Verify its paths, sheet names, formulas,55 key outputs, errors, balances, and preservation receipt.567. Return the artifact path, a concise result summary, assumptions and sources,57 verification status, preserved or changed features, and any blocked evidence.5859### Stop conditions6061Stop before writing when the source file cannot be read safely, the output would62overwrite a file without approval, required financial inputs are missing, or the63available tool cannot preserve an in-scope workbook feature. Stop before a final64valuation or return claim when recalculation or formula verification is unavailable.6566## Output6768Return the saved workbook path when an artifact was created, followed by the key69result or blocked result, evidence and assumption summary, model-check status,70recalculation status, and preservation receipt. Never imply that an unverified71cached value is final.7273## Examples7475- “Build a five-year DCF from this forecast and debt schedule; save a new file.”76- “Model this acquisition using the attached term sheet and operating case.”77- “Compare this quarter's actuals with the approved forecast; do not infer causes.”7879A request for “a pivot chart by region” is outside this skill's artifact surface;80offer a formula-backed summary or explain what additional tool is required.8182## Error Handling8384On invalid inputs, unsafe paths, unsupported workbook features, formula errors, or85missing recalculation, stop at the relevant boundary and return the exact problem,86what remains unchanged, and the smallest evidence or capability needed to proceed.8788## Resources8990These references are deliberately separate so unrelated model logic stays out of91context:9293- [Artifact contract](references/artifact-contract.md) for evidence, preservation,94 recalculation, and verification.95- [DCF modeling](references/dcf.md) for DCF inputs, formulas, and checks.96- [LBO modeling](references/lbo.md) for transaction, debt, and return logic.97- [Variance analysis](references/variance.md) for signs, materiality, and commentary.98- [Tooling boundaries](references/tooling.md) for adapter capabilities and handoffs.