Drop a folder of vendor quotes, proposals, and SOWs on Cowork -- normalizes them into one comparison matrix, computes true total cost of ownership, surfaces the terms each vendor buried, and arms you with negotiation leverage points and reference-check questions.
SkillScore55Maintained
Automatic
◆Procurement pack
Last verified 8/24/2026
What it changes
Passed 12 of 22 test cases with the skill, and 10 of 22 without it.
Without skill45%
With skill55%
Checks it passed that the model alone missed
Place source document and page citations inside each individual cell of the comparison matrix.
Execute extraction, normalization, and total cost of ownership calculations covering steps 1 through 3.
2 fixed10 passed either way10 still failing0 broke
Pass-rate lift
+9 pp
Tokens
+23%
Agent turns
0%
Response time
-5%
Model gemini-3.6-flashMeasured 8/24/2026v112 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 2
Prompt
I am building a procurement comparison matrix for our executive committee evaluating two enterprise ERP quotes. Should source document citations be placed in a single summary footnote row at the bottom of the table or embedded directly within individual cells?
What was checked, without and with the skill
Checked
Without skill
With skill
Place source document and page citations inside each individual cell of the comparison matrix.
Missed
Passed
case-06 · gemini-3.6-flash · 8/24/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md27 linessingle file
Cowork Vendor Comparison
Compare vendor proposals the way a procurement lead does: normalize everything to the same units before judging anything, price the full term not the first invoice, and read the terms the sales deck skipped. Input: a folder of quotes/proposals/SOWs (PDF, .docx, .xlsx) and, ideally, one sentence on what the purchase needs to accomplish.
Workflow
Extract per vendor: pricing structure (license, usage, implementation, support tiers), contract term and renewal terms, SLAs and remedies, implementation timeline and dependencies, what is in scope vs. priced as add-on, exit terms (data export, termination fees), and every assumption the proposal states.
Normalize. Convert all pricing to a common basis -- same seat count, same usage volume, same term. Where a proposal is silent on something another proposal prices (training, integrations, overage rates), mark it UNPRICED -- ask, never zero. Unpriced is not free.
Compute TCO over the realistic term (default 3 years): year-one cost, steady-state annual cost, escalators applied, one-time costs amortized, and the exit cost. Show the math per vendor.
Matrix. Output vendor-comparison.md: side-by-side table of cost, capability fit against the stated need, SLA strength, implementation risk, and contract flexibility -- each cell citing the source document and page. Follow with a plain-English paragraph per vendor: the honest case for and against.
Negotiation prep. For the top 2 vendors: leverage points (their weaknesses vs. the rival's strengths, end-of-quarter timing, multi-year vs. flexibility trades), the specific asks worth making (cap the escalator, free implementation, opt-out at 12 months), and 5 reference-check questions targeting each vendor's specific risk areas.
Rules
Never judge from unnormalized numbers. A lower sticker with usage pricing can be the expensive option.
Every cell in the matrix traces to a document and page. "Vendor B has better support" without a citation is vibes.
Silence is a finding: what a proposal does not say (no uptime SLA, no data-export clause) goes in the matrix as prominently as what it says.
Do not manufacture a winner. If the vendors genuinely split on cost vs. capability, present the trade and the decision criteria, and say which way the stated need leans.
Flag lock-in explicitly: proprietary data formats, migration fees, auto-renewals with long notice windows.
If proposals answer different scopes (one quoted 50 seats, one quoted 200), lead with that mismatch and request aligned quotes before deep comparison.
Quick Commands
"Compare [folder]" -- full workflow
"TCO only" -- steps 1-3
"What's unpriced?" -- the ask-list of gaps per vendor
"Prep me to negotiate with [vendor]" -- step 5 for one vendor