Cross-Platform SEO Metadata Generator
Produce a unified SEO metadata file covering every platform in the repurposing
pipeline. Ensures keyword consistency while respecting each platform's unique
search and discovery mechanics.
Inputs
Received from the parent agent (repurpose-seo):
| Input | Description |
|---|
atoms | Full list of content atoms with types and impact ratings |
main_argument | One-sentence thesis of the source content |
target_audience | Who benefits from this content |
primary_topic | Category or niche |
voice_profile | Detected or overridden brand voice |
platforms_requested | Which platforms are being generated (all if unspecified) |
References
Load these before generating output:
references/platform-specs.md -- character limits, hashtag counts, formatting rulesreferences/engagement-benchmarks.md -- click-through and engagement baselines
Output: seo-metadata.md
File: seo-metadata.md
Single file with clearly labeled sections per platform.
Core Keywords (Cross-Platform)
Before generating platform-specific metadata, establish the keyword foundation:
## Core Keywords
**Primary Keywords (3-5):**
- [keyword 1] -- highest relevance to main argument
- [keyword 2]
- [keyword 3]
**Secondary Keywords (5-10):**
- [long-tail keyword 1]
- [long-tail keyword 2]
- ...
**Keyword Selection Rules:**
- Primary: directly describe the content topic (1-2 words)
- Secondary: long-tail phrases the target audience would search
- Avoid generic terms ("marketing", "business") unless paired with specifics
- Include at least one audience-identifying keyword ("for founders", "SaaS")
All platform sections below must use these core keywords, adapted to each
platform's conventions.
Twitter/X
| Field | Spec |
|---|
| Optimized Title | Under 70 chars; include primary keyword; works as tweet text |
| Description | 1-2 sentences; under 200 chars; for Twitter Card meta |
| Twitter Card Type | summary_large_image (default) or summary if no hero image |
| Hashtags | 0-2 max. Only if highly relevant. Twitter penalizes hashtag stuffing. |
| Keywords in Tweet | Weave primary keyword naturally into tweet copy; never force |
| Alt Text | For any attached image: descriptive, keyword-inclusive, under 420 chars |
LinkedIn
| Field | Spec |
|---|
| Optimized Headline | Under 150 chars; professional tone; include primary keyword |
| Description | 1-2 sentences for link preview or article summary |
| Hashtags | 3-5. Mix of broad (50k+ followers) and niche (<10k followers). Place at post bottom. |
| Article SEO | If longform: suggest SEO title (under 70 chars) + meta description (under 155 chars) for LinkedIn article |
| Keywords | Include primary keyword in first 2 lines of post (LinkedIn search indexes early text) |
| Alt Text | For carousel cover or images: professional, descriptive |
Instagram
| Field | Spec |
|---|
| Caption Headline | First line of caption (before "more" fold); under 125 chars; hook + keyword |
| Description | Not applicable (Instagram has no meta description) |
| Hashtags | 3-5 niche hashtags. Avoid generic (#marketing, #inspo). Target hashtags with 10k-500k posts for discoverability. |
| Hashtag Research Notes | For each hashtag: approximate post count and why it fits |
| Keywords | Work primary keyword into caption naturally; Instagram search indexes caption text |
| Alt Text | For each carousel slide and reel thumbnail: descriptive, specific, keyword-inclusive |
Instagram hashtag rules:
- Place in caption body or first comment (either works; caption preferred for indexing)
- 3-5 total (algorithm penalizes 20+ hashtag lists)
- Mix: 1 broad (100k+ posts), 2-3 niche (10k-500k), 1 micro (<10k)
- Rotate sets across posts to avoid shadow-ban triggers
Facebook
| Field | Spec |
|---|
| Optimized Title | Under 80 chars; conversational tone; primary keyword |
| Description | For link preview: under 155 chars |
| Hashtags | 0-3. Facebook hashtags have low impact; use only if highly topical. |
| Keywords | Include in first sentence; Facebook search indexes post text |
| Alt Text | For any images: descriptive, keyword-included |
YouTube Community
| Field | Spec |
|---|
| Post Text | First 2 lines (before fold) should contain primary keyword |
| Hashtags | 1-3 relevant hashtags at post bottom |
| Keywords | Work into poll questions and post body naturally |
Reddit
| Field | Spec |
|---|
| Title Keywords | Include primary keyword in post title naturally |
| Post Flair | Suggest flair text based on subreddit conventions (e.g., "Discussion", "Resource", "Question") |
| No Hashtags | Reddit does not use hashtags. Never include them. |
| Keywords | Work into post body for Reddit search; use natural language |
Newsletter / Email
| Field | Spec |
|---|
| Subject Line Keywords | Primary keyword in at least 1 of 3 subject variants |
| Preview Text | 40-90 chars; complements subject; includes secondary keyword |
| Alt Text | For any email images: descriptive (many clients block images) |
| No Hashtags | Email does not use hashtags. |
Skool
| Field | Spec |
|---|
| Post Title | Include primary keyword; frame as discussion or challenge |
| Hashtags | 0-2 if the Skool community uses tags |
| Keywords | Work into post body and discussion prompt |
Cross-Platform Consistency Check
After generating all sections, verify:
- Primary keyword appears in every platform's title/headline
- No platform uses more hashtags than its recommended limit
- Alt text is unique per image, not copy-pasted across platforms
- Tone matches platform (professional for LinkedIn, casual for Twitter, peer-to-peer for Reddit)
- No keyword stuffing -- each keyword appears naturally, max 2 times per platform section
Keyword Adaptation Rules
| Platform | Keyword Style |
|---|
| Twitter | Short, punchy, often as a noun phrase |
| LinkedIn | Professional, may include industry jargon |
| Instagram | Casual, may abbreviate or use slang |
| Facebook | Conversational, question-friendly |
| Reddit | Natural language, no optimization feel |
| Newsletter | Benefit-oriented, action words |
| YouTube | Search-query style, how-to phrasing |
Error Handling
| Condition | Action |
|---|
| Topic too broad for specific keywords | Ask parent agent for niche-down; use audience-specific long-tail |
Platform not in platforms_requested | Skip that section; note in output |
| No images generated | Skip alt text sections; note "Add alt text when images are created" |
brief_mode is true | Generate core keywords + top 3 requested platforms only |
| Hashtag research unclear | Default to topic + audience + format pattern |
