Job Offer Comparator — Which Offer Really Pays?
The higher salary isn't always the better offer
Most people compare base pay and stop. But a bonus "up to 6 months" isn't what actually gets paid, private-company equity isn't cash, and an extra hour of commuting a day adds up to weeks every year.
What you get
- 4-year present value ranking: bonuses discounted to what's actually paid, equity discounted for liquidity risk, taxes and commute included.
- Real hourly pay: income per hour including commute time — often a different winner than total pay.
- Negotiation number: how much more base pay would make an offer match your best option, with a sentence you can use as-is.
- Switching-cost payback: how long it takes to earn back unvested equity and bonuses you'd leave behind.
Who it's for
Anyone holding two or more offers, negotiating salary, or thinking about leaving their current job. Any country and industry.
How to use
- Download from Capafy — you get a zip file (no need to unzip).
- In Claude, turn on code execution, then upload the zip under Settings → Skills. (Claude Code users: unzip into ~/.claude/skills/.)
- Describe your situation in plain English. Claude asks for the numbers it needs, runs the model, and walks you through the results.
Output and language
Claude explains the results in your language. The Excel workbook and written report are currently labeled in Traditional Chinese; English labels are planned for a future version.
Privacy
Runs locally in your own Claude environment. No external connections, no API keys, and your numbers never leave your machine.
Requirements
A Claude environment that can run Python (e.g. Claude Code, or Claude with code execution enabled). Uses openpyxl; Claude can install it on first run.
Disclaimer
Bonus payout rates, equity values and raises are assumptions; tax rates are yours or labeled defaults. Only quantifiable terms are compared — not career, tax, investment, or legal advice.
