product-comparison-writer（产品比较作家）

Product Comparison & Review Copywriter

Purpose

This skill generates fair, structured product comparison content — head-to-head comparison tables, category buying guides, balanced pros/cons analyses, specification battles, and personalized "best for" recommendations. It is built with fairness as a first principle: the output must be useful to readers making purchase decisions, not a disguised sales pitch. Designed for e-commerce product pages, editorial content, affiliate marketing, and merchant category pages.

Triggers

• "product comparison"
• "product VS"
• "对比评测"
• "buying guide"
• "pros and cons"
• "选购指南"
• "compare products"
• "spec comparison"
• "best for recommendation"
• "优缺点分析"

Workflow

1. Receive products to compare from user: Product A and Product B (or a category with multiple entries), with key specs, price points, target users, and any sponsored/editorial disclosure.
2. Build a feature comparison matrix: list all comparable features across both products, note where data is missing.
3. Generate balanced pros and cons for each product — a MINIMUM of 2 pros and 2 cons per product, even for the recommended one.
4. Create "best for" recommendations based on user personas, not product superiority: "Product A is best for [persona/use case], Product B is best for [different persona/use case]."
5. Apply the fairness gate: verify no invented weaknesses, no suppressed advantages, no defamatory language.
6. Output the complete comparison package: feature table + pros/cons + buying recommendation + fairness disclosure.

Prompt Templates

1. Head-to-Head Comparison (head_to_head_comparison)

Purpose: Generate a structured A vs B comparison. Input:

• ${product_a_name} — Product A name + key specs
• ${product_b_name} — Product B name + key specs
• ${comparison_focus} — What matters most (price/performance/quality/features/ecosystem)
• ${disclosure} — Editorial or sponsored relationship

Output: Feature matrix table + balanced pros/cons per product + "best for" verdict + fairness disclosure.

2. Buying Guide (buying_guide)

Purpose: Create a tiered buying guide for a product category. Input:

• ${category} — Product category (e.g., "noise-canceling headphones")
• ${budget_tiers} — Price brackets with 1–2 products per tier
• ${user_personas} — 2–3 buyer types and what they value

Output: Tiered guide: Budget Tier | Product(s) | Key Feature | Best For | Pros | Cons | Price.

3. Pros/Cons Generator (pros_cons_generator)

Purpose: Generate an objectively balanced pros/cons list for one product. Input:

• ${product_name} — Product
• ${product_details} — Full specs, price, user reviews context
• ${use_case} — Intended usage context

Output: Pros list (minimum 3) and Cons list (minimum 2), each with a one-sentence explanation.

4. Spec Battle (spec_battle)

Purpose: Format raw specifications into a readable comparison. Input:

• ${product_a_specs} — Structured spec list for Product A
• ${product_b_specs} — Structured spec list for Product B
• ${highlight_categories} — Which spec categories to emphasize

Output: Spec comparison table: Feature | Product A | Product B | Winner (if clear) | Note.

5. Best For Matcher (best_for_matcher)

Purpose: Match products to user personas with personalized recommendations. Input:

• ${product_options} — 2–5 products in a category
• ${user_persona} — One persona description (type, budget, priorities, constraints)

Output: Ranked recommendation: #1 pick with reasoning, runner-up, and "avoid if" note for each product.

Output Format

Every comparison is delivered in a reader-friendly structure:

Feature Comparison Table:

Pros & Cons:

• Product A

- ✅ Pro 1: ... - ❌ Con 1: ...

• Product B (same structure)

Verdict: Best for [persona/use case] → [which product and why]

Fairness Disclosure: [Editorial/Sponsored/Data sources]

Safety Rules

• NEVER invent or exaggerate a competitor's weakness — if data is missing, say "data not available"
• NEVER suppress or omit a competitor's genuine advantage
• NEVER use defamatory, dismissive, or insulting language about any product
• NEVER present sponsored content as editorial — always label sponsorship
• ALWAYS generate AT LEAST 2 cons for every product, even the recommended one
• ALWAYS cite sources when using third-party data or reviews
• ALWAYS provide a fairness disclosure section

Examples

Example 1: Head-to-Head (Smartphones)

Input: A="Phone X ¥2999 6.7in 5000mAh 64MP", B="Phone Y ¥3299 6.5in 4500mAh 108MP", Focus="camera+battery" Output: Feature table with 8 rows, A wins on battery/price, B wins on camera/resolution. Pros/cons for each (Phone X con: "lower camera resolution"; Phone Y con: "higher price, smaller battery"). Verdict: "Phone X best for budget-conscious battery users; Phone Y best for photography enthusiasts."

Example 2: Buying Guide

Input: Category="蓝牙耳机 (Bluetooth Earbuds)", Tiers=["入门<200", "中端200-500", "高端>500"], Personas=["通勤党", "运动党", "学生党"] Output: Three-tier guide with 5 products, each linked to a persona, with balanced pros/cons.

Related Skills

• product-title-booster — For optimizing titles of the compared products
• review-reply-coach — For responding to reviews that the comparison may attract
• landing-page-copy-pro — For the landing page hosting the buying guide