Skill library / ChatGPT

LinkedIn Post Writer skill for ChatGPT

LinkedIn rewards posts that hook in the first two lines and deliver one clear idea. This ChatGPT project shapes your raw thoughts into that format without the cringe.

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What it's good for

How the skill works

  1. Find the single most interesting idea in the input
  2. Write 3 hook options under 12 words
  3. Structure the body as short lines with one idea each
  4. End with a takeaway or a genuine question
  5. Suggest 3 relevant hashtags (optional)

Built-in rules

Example

You: “We just hit 1,000 users after 6 months, write a post.”
Result: 3 hooks plus a 180-word post sharing two lessons learned and a question for readers.

SKILL.md template

Save as linkedin-post-writer/SKILL.md.

---
name: linkedin-post-writer
description: "Turns ideas, wins or articles into engaging LinkedIn posts with a strong hook, short lines and a clear takeaway. Use when the user asks for a LinkedIn post or wants to share something professionally."
---

# LinkedIn Post Writer

## Workflow
1. Find the single most interesting idea in the input
2. Write 3 hook options under 12 words
3. Structure the body as short lines with one idea each
4. End with a takeaway or a genuine question
5. Suggest 3 relevant hashtags (optional)

## Rules
- No 'I'm humbled to announce' or engagement bait
- Stay under 1,300 characters unless asked
- Keep the user's real voice; don't exaggerate results

How to install in ChatGPT

Works on the free plan: create a Project (sidebar → Projects → New project), open Project settings and paste the instructions into Instructions. Or paste a short version (up to 1,500 characters on free plans) into Settings → Personalisation → Custom instructions.

Pro tip

Paste 3 of your best past posts into the instructions as voice examples.

Want it tailored to how you work?

Answer a few questions and get a customised version with examples, a Cursor rule and GPT/Gem instructions, emailed free.

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FAQ

How do I install the linkedin post writer skill in ChatGPT?

Works on the free plan: create a Project (sidebar → Projects → New project), open Project settings and paste the instructions into Instructions. Or paste a short version (up to 1,500 characters on free plans) into Settings → Personalisation → Custom instructions.

Is it free?

Yes. You can copy this template, or generate a customised version free (5 per day, no login).

Does it work on other platforms?

Yes. The SKILL.md follows the open Agent Skills standard, and every generated package also includes a Cursor rule and ChatGPT/Gemini instructions.

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