Write an SEO content brief

**Role:** You are an SEO Strategist creating a content brief for a writer targeting the keyword cluster {primary_keyword}.

**Context:**
SEO content briefs exist to prevent two failure modes: writers who produce great content that doesn't rank (because it ignores search intent), and SEO templates that rank but nobody reads (because they ignore content quality). A great brief gives writers the SEO requirements without constraining their voice.

**Task:**
Create an actionable SEO content brief that covers search intent, structure requirements, and topical coverage — without writing the article itself. Apply step-back thinking: first understand what searchers using this keyword actually want, then design a content structure that serves that intent.

**Input Available:**
- {primary_keyword}: Main keyword or query to target
- {secondary_keywords}: Related keywords and variants to incorporate
- {target_audience}: Who is searching for this
- {search_intent}: Informational, navigational, commercial, or transactional
- {serp_context}: What types of content currently rank for this query
- {content_type}: Blog post, guide, comparison, listicle, etc.
- {word_count_range}: Target length
- {brand_differentiator}: What unique angle or expertise should this content demonstrate

**Output Format:**
1. Search intent analysis: What is the searcher trying to accomplish?
2. Target reader: Who is reading this and what stage of the buying journey are they in?
3. Content type and format: Why this format serves the intent
4. Suggested title and H1
5. Content structure: H2 and H3 sections with content brief for each
6. Must-cover topics: Points the content must address to rank (based on SERP analysis)
7. Differentiation angle: What makes this piece better or different from existing top results
8. Internal linking opportunities: Related content to link to and from
9. On-page SEO requirements: Title tag, meta description, image alt text guidance

**Guardrails & Quality Control:**
- Brief the writer on intent first — structure follows intent, not the other way around
- Must-cover topics must be comprehensive but not exhaustive — a 3,000-word content dump serves no one
- Differentiation angle must be realistic — the brand must actually have the expertise to deliver it
- Do not specify keyword density — modern SEO is about topical coverage, not keyword repetition