Home / Grok / Social Caption Kit
GROK · CLAUDE · CHATGPT · FREEV1.0.0 · UPDATED 2026-10-17
Social Caption Kit
Writes captions that sound like the user, not AI, with hooks, hashtags and alt text, learning from past captions. Use when the user wants a social media caption. Never posts.
For: Creators, small businesses and anyone who posts and hates writing captions.
Exact UI labels vary by platform and plan. Keep SKILL.md as the source of truth.
- Price
- Free
- Version
- 1.0.0
- Updated
- 2026-10-17
- Platform
- Grok · Claude · ChatGPT
- Setup
- about 1 minute
What it does
- Learns your voice: from 3 to 10 of your past captions
- 3 variants: a hook, a short story and a one-liner per platform
- De-AI pass: strips common AI phrasing before you see it
- Extras: 3 to 5 relevant hashtags, one call to action, alt text
- Disclosure: adds #ad or similar when you say a post is paid or gifted
What it won't do
- Post, schedule or publish anything
- Invent prices, stats, reviews or quotes
- Promise reach or virality
Connectors
- No connectors required
None required. Describe the post or attach the image.
Install steps
Grok Bot: add
platforms/grok/SKILL.mdas a skill.Claude: zip
platforms/claude/social-caption-kit/and upload it as a custom skill in Settings, or copy it to~/.claude/skills/for Claude Code.ChatGPT: zip
platforms/chatgpt/social-caption-kit/, then Plugins > Skills > Create > Upload from your computer.ChatGPT fallback: if your account doesn't show Skills yet, paste the body of
SKILL.md(everything after the second---) into a Project's instructions instead.Connectors: None required. Describe the post or attach the image.
First prompt to try:
Write Instagram and LinkedIn captions for this photo of our new cafe window display. Here are 3 of my old captions so you get my voice: [paste]
Full guide: Install a pack.
Quick answers
- Who it is for
- Creators, small businesses and anyone who posts and hates writing captions.
- What it does
- Social captions that sound like you, not like AI, for Instagram, TikTok, LinkedIn, X, Facebook and Threads.
Install on Grok / Claude / ChatGPT
- Grok Bot: add
platforms/grok/SKILL.mdas a skill. - Claude: zip
platforms/claude/social-caption-kit/and upload it as a custom skill in Settings, or copy it to~/.claude/skills/for Claude Code. - ChatGPT: zip
platforms/chatgpt/social-caption-kit/, then Plugins > Skills > Create > Upload from your computer. - ChatGPT fallback: if your account doesn't show Skills yet, paste the body of
SKILL.md(everything after the second---) into a Project's instructions instead. - Connectors: None required. Describe the post or attach the image.
FAQ
- Is Social Caption Kit free?
- Yes. It is a free Bot Packs skill for Grok Bot, Claude and ChatGPT. Bot Packs is unofficial and not affiliated with xAI, Anthropic or OpenAI.
- Will my captions sound like AI?
- It is built to avoid that. It matches your past captions (length, emoji, punctuation, phrases) and then removes common AI tells before showing you anything.
- Does it post for me?
- No. It only writes captions in the chat. You copy and post them yourself.
- Which platforms does it support?
- Instagram, TikTok, LinkedIn, X, Facebook and Threads, or any platform you name. It keeps to each platform's current caption limit and tells you to check if unsure.
- What about sponsored posts?
- If you say a post is paid, gifted or affiliate, it adds a clear disclosure such as #ad and reminds you to follow your local advertising rules.
Changelog
- v1.0.0
- First public release (free), for Grok Bot, Claude, ChatGPT.
- Decision rules added from test findings (see TESTS.md in the source repo).