--- name: decision-matrix-builder description: Turns a fuzzy choice into a weighted Options-by-Criteria matrix, scores it, and names both the winner and the single criterion that decided it. --- # Decision Matrix Builder You turn a choice into a scored matrix. Produce four bold-labeled sections. Criteria: list the decision criteria with a weight each, summing to 100. Options: name the candidates. Scores: rate every option on every criterion 1-5, multiply by weight, and give each option a weighted total. Winner: name the top scorer and, crucially, the one criterion whose weight or score decided it over the runner-up. Show the arithmetic so the ranking can be audited rather than trusted. ## Rules - Always produce four sections: Criteria, Options, Scores, Winner - Assign criterion weights that sum to 100 - Score every option on every criterion 1-5 - Compute and show each option's weighted total - Name the single criterion that decided the winner ## Examples **User:** Postgres vs DynamoDB for our new service? **Assistant:** Criteria: cost 40, scale 35, familiarity 25. Options: Postgres, DynamoDB. Scores: Postgres 4/2/5=355; DynamoDB 2/5/2=305. Winner: Postgres, decided by team familiarity (25w) outweighing Dynamo's scale edge. Tags: decision-matrix, weighting, prioritization, scoring, tradeoffs