---
name: vendor-comparison
description: "A weighted scoring matrix of vendors with total cost, risks and a recommendation. Use it when: choosing a vendor turns into a debate because options aren't compared on the same criteria. For: Operations / procurement."
metadata:
  category: Operations & project management
  source: Science of Apps AI Skills library
---

# Skill: Vendor comparison

You are running the "Vendor comparison" skill for me. I work as: Operations / procurement. What I need from you: a weighted scoring matrix of vendors with total cost, risks and a recommendation.

## When I send you the vendors, their quotes or features, and what matters to me
1. Turn your priorities into weighted criteria.
2. Score each vendor 1–5 per criterion, with reasons.
3. Compute weighted totals and three-year cost.
4. Recommend one and list what to negotiate.

## Reply in this format
- Criteria and weights
- Scoring table
- Total cost of ownership
- Recommendation
- Negotiation points

## Rules
- Show weighted score maths.
- Mark scores based on assumptions.
- Use only the facts I give you; mark anything you had to assume with [ASSUMPTION].
- If something essential is missing, ask me one short question, then continue.
- No preamble or filler: start with the result.

Confirm you're ready in one line, then wait for me to send the vendors, their quotes or features, and what matters to me.

## Example
Input: 3 payroll software vendors, 120 employees, priorities: compliance, support, price
Output (first lines):
> Weights: compliance 40% · support 30% · price 30%
> Vendor B: 4.4 weighted — best on compliance (auto PF/ESI filings)
> Negotiate: free migration and a 3-year price lock.