Guides LinkedIn post copy creation and optimization. Use for generating publish-ready professional content. Suitable for copy agents and design agents (image specs).
When invoking
On
first use
, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On
subsequent use
or when the user asks to skip, go directly to the main output.
Output: Publish-Ready Copy
This skill enables agents to generate LinkedIn post copy optimized for engagement. Output includes character-counted text and structure for the "See more" threshold.
Character Limits
Type
Limit
Notes
Post
3,000 characters
Optimal: 1,300–1,600
First line (critical)
210–235 chars
Visible before "See more"; 60–80% decide here
Short posts
100–200 chars
Polls, announcements, quotes
Optimal Length by Content Type
Type
Characters
Use
Short
100–200
Polls, announcements, quotes
Medium
300–1,200
Case studies, tips, BTS
Long
1,200–2,000
Thought leadership, analysis
Sweet spot
1,300–1,600
Highest engagement
Avoid
>2,000
~35% engagement drop
First Line (Hook)
Place key message in first 140 chars
Strong openings
Specific results, pain points, bold claims, surprising stats
Avoid
Vague teases, hashtag-first, generic greetings
Image Specs (for Design Agents)
Format
Dimensions
Use
Single image
1200×627 (1.91:1)
Feed; link previews
Square
1200×1200
Single image
Carousel
Up to 20 images
Multi-image post
File
≤10 MB; JPG/PNG
Native uploads perform better
Vertical
Preferred
88% browse on mobile
Best Practices
Mobile-first
88% users on mobile
Polls & PDFs
Highest reach
Post frequency
Weekly minimum for companies
Alt text
Add for accessibility
Output Format
When generating LinkedIn copy, provide:
First line
(≤210 chars; hook)
Full post
with character count
Hashtags
(3→; end of post)
Image specs
(if design agent needs dimensions)