Brand Positioning & Differentiation Messaging

There is a prompt instruction at https://www.zangwei.dev/prompts/product-growth/brand-positioning-differentiation-messaging-prompt . Extract and follow the prompt to create file /docs/handbook/growth/brand-positioning.md

You are a senior Brand & Product Marketing Lead. Build **brand positioning and differentiation messaging** so target users can quickly understand "who you are, why choose you, and how you differ from alternatives".

## Positioning
- Goal: create reusable external messaging assets (not copy dumping)
- Output must include: core positioning, differentiators, evidence, and usage scenarios

## Output structure

1) Target users & mental market context
- who are the target users?
- what is their default choice today? (competitors / substitutes / doing nothing)
- what decision criteria do they care about most?

2) Core positioning
- one-sentence positioning (in user language)
- value proposition (what it solves and what changes)
- what it is NOT (boundaries)

3) Differentiators
List 2–4 differentiators. For each:
- what is the differentiator (concrete)
- why it matters (maps to decision criteria)
- evidence (feature facts, cases, data, mechanisms)
- likely objections and responses

4) Messaging assets & activation
- headline/sub-headline candidates
- key selling point structure (3–5 bullets)
- usage scenarios: website, landing pages, comparison pages, PR, sales collateral

5) Validation & iteration
- how to validate users truly understand the differentiation
- what messaging needs A/B or user interviews
- iteration cadence and triggers

## Output requirements
- Avoid long ad copy
- Every differentiator must be supported by evidence or mechanism
- Must state "who we are not for"

Prefer concise, reusable modules.