social-media-posts

Social Media Post Generator

Create platform-specific social media posts that respect each platform's conventions, character limits, and audience expectations. Produces copy-paste-ready content.

Modes

From Scratch

User provides topic + key points. Generate posts for selected platforms.

From Content

User provides existing content (blog post, newsletter, announcement, press release). Repurpose into platform-appropriate posts.

Campaign

Generate a coordinated set of posts across all platforms for a single launch, announcement, or event. Includes posting sequence and timing suggestions.

Workflow

1. Gather Input

If the user provides a file path or URL to existing content, read it first and extract the key messages.

2. Generate Per-Platform Posts

LinkedIn

Audience: Professionals, B2B, industry peers Tone: Authoritative but approachable, thought-leadership Optimal length: 1,200–1,500 characters (longer posts perform well)

Structure:

[Hook line — must grab attention before "see more" truncation]
[blank line]
[2-3 short paragraphs with line breaks between]
[blank line]
[CTA or question to drive comments]
[blank line]
[3-5 relevant hashtags]

Rules:

• Hook must work in first 2 lines (before "…see more" at ~210 chars)
• Use line breaks liberally — wall-of-text kills engagement
• Ask a question at the end to drive comments
• Hashtags: 3-5 max, mix broad (#Marketing) and niche (#CloudflareWorkers)
• Links in comments perform better than in post body (algorithm penalty)
• No emoji overload — 1-2 max, or none for serious topics

Image specs: 1200×627px (1.91:1) for link preview, or 1080×1080 (1:1) for standalone

Example:

We just shipped something we've been building for 6 months.

It started as a "wouldn't it be nice if…" conversation and turned
into our most requested feature. Here's what we learned:

Facebook

Audience: Mixed — friends, family, community, local businesses Tone: Conversational, warm, community-focused Optimal length: 80–150 characters for engagement, up to 500 for storytelling

Structure:

Rules:

• Link posts: Facebook auto-generates a preview card — don't repeat the headline in your text
• Short posts (under 130 chars) get larger text rendering in feed
• Questions and polls drive highest engagement
• Tag relevant pages when mentioning partners/clients
• Hashtags: 1-3 or none — Facebook hashtags are less effective than other platforms
• Emojis are welcome but don't overdo (2-3 max)

Image specs: 1200×630px (1.91:1) for link preview, 1080×1080 (1:1) for photo posts

Example:

Instagram

Audience: Visual-first, younger demographic, lifestyle/brand-focused Tone: Authentic, visual storytelling, personality-forward Optimal length: Key message in first 125 chars (truncation point), full caption up to 2,200

Structure:

Rules:

• First 125 characters must carry the message (everything after is hidden behind "…more")
• No clickable links in captions — direct to "link in bio"
• Hashtags: 20-30 in first comment (not in caption) for discoverability
• Mix hashtag sizes: 5 large (1M+ posts), 10 medium (100K-1M), 10 niche (<100K)
• Emojis are part of the language — use them naturally
• Carousel posts: include a swipe CTA ("Swipe for the full breakdown →")
• Stories: prompt action ("Reply with 🔥 if you relate")

Image specs: 1080×1080 (1:1) feed, 1080×1350 (4:5) portrait, 1080×1920 (9:16) stories/reels

Example:

First comment:

Reddit

Audience: Community-specific, values authenticity, allergic to marketing Tone: Genuine, value-first, conversational, never salesy Optimal length: Title 100-150 chars, body varies by subreddit

Structure:

Rules:

• Title is everything — Reddit lives and dies by titles
• NO self-promotion feel — lead with value, not product
• Each subreddit has different norms — check the rules before posting
• Don't use hashtags (not a Reddit convention)
• Don't use emojis in titles (feels out of place on most subreddits)
• Share the insight, not the product. "Here's what we learned" > "Check out our new feature"
• Cross-posting: adapt tone per subreddit (r/startups vs r/webdev vs r/smallbusiness)

Subreddit suggestions by topic:

Example:

3. Image Recommendations

For each platform, suggest image requirements:

If the ai-image-generator skill is available, suggest using it to generate companion images with the right aspect ratios.

4. Output Format

Present each post in a clearly labelled block:

Save to .jez/artifacts/social-posts-[topic].md if the user wants to keep them for scheduling.

Campaign Mode

For launches or announcements, generate a posting sequence:

Quality Rules

1. Never copy-paste the same text across platforms — each platform has different conventions
2. No corporate jargon — "leverage our synergies" belongs nowhere
3. Front-load the value — every platform truncates. The first line must work standalone.
4. Match the platform culture — LinkedIn is not Instagram is not Reddit
5. Include a reason to engage — question, poll, or genuine discussion prompt
6. Check character limits — LinkedIn (3,000), Facebook (63,206), Instagram caption (2,200), Reddit title (300)
7. Never fake engagement — no "Drop a 🔥 if you agree" on LinkedIn, no hashtag spam on Reddit