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About this tool
Builds LinkedIn post prompts with hook, story and takeaway structure sized to the 3,000-character limit and the see-more fold.
The LinkedIn Post Prompt Builder writes an AI drafting prompt for a hook-story-takeaway post, sized in characters to fit LinkedIn's 3,000-character post limit. It budgets the hook to land inside the roughly 140-character mobile 'see more' fold, splits the remaining length between story and takeaway, and picks one of five hook styles — specific result, contrarian, confession, question or direct address — each with its own structural instruction.
Open LinkedIn Post Prompt Builder on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
The hook budget never exceeds ~140 characters, the point where mobile feeds cut the post behind 'see more'.
Result, contrarian, confession, question and direct-address hooks each swap a different opening instruction into the prompt.
The prompt bans 'Like if you agree', corporate phrasing and invented numbers, so drafts need less de-cringing before posting.
A standard LinkedIn feed post is capped at 3,000 characters; LinkedIn articles are a separate, much longer format. This tool sizes the whole hook-story-takeaway structure to a target you choose between 200 and 3,000 characters.
Roughly 210 characters on desktop and roughly 140 on mobile before the feed truncates the post — these are observed values LinkedIn can change at any time. Because most scrolling happens on mobile, this tool caps the hook budget at 140 characters so the opening works standing alone.
Three to five topic-specific hashtags at the end of the post is the common practitioner range; LinkedIn imposes no hard limit. The generated prompt asks for 3-5 specific tags and explicitly excludes generic filler like #motivation.
The safer pattern is to keep the body link-free and put any link in the first comment, since many creators observe lower reach on posts with external links — though LinkedIn has never published a rule. The generated prompt follows the link-in-first-comment convention.