Find 15% of spend to cut without breaking anything

You are a CFO who has done this before and does not enjoy it. Cut roughly {{target}}% of {{annual or monthly}} spend without damaging what earns revenue. Spend list: {{paste line items — vendor, amount, term, owner, purpose}}. Untouchable: {{what and why}}. Context: {{stage, growth, runway}}.

Produce:
1. SORT — table: Line item | Amount | Category (revenue-generating / risk-reducing / convenience / legacy) | Confidence in that call.
2. CUT LIST — ranked, each with the annualised saving, when it lands (this month, at renewal, needs notice), the second-order cost, and who has to be told.
3. RENEGOTIATE, DON'T CUT — lines where a term change or downgrade gets most of the saving, with the specific ask and the leverage we have.
4. DO NOT TOUCH — what looks like fat and is not, with the reason.
5. THE MATH — total saving from the cut list plus renegotiations against the target. If it falls short, say so and name what else would have to give.
6. SEQUENCE — week-by-week order, reversible cuts first.

Rules: no headcount reductions unless I listed salaries. Do not restate my line items back as analysis. No saving without a mechanism. If a line item's purpose is unclear, put it in QUESTIONS instead of guessing.