CHROME EXTENSION
LinkedIn Comment Assist
AI-powered comment generator that reads posts, articles, and newsletters. Generates on-brand replies in your voice. 5 styles. 3 options per generation. Free and open source.
5
Comment styles
3
Options per gen
<$1
Per month
OSS
Open source
WHAT IT DOES
LinkedIn engagement without the AI voice.
Reads everything
Feed posts, articles, and newsletters. The extension extracts author, title, and body content from any LinkedIn content type.
5 comment styles
Agree, Add Value, Question, Challenge, or Witty. Each generates 3 options. Pick the one that fits, edit if needed, insert directly.
Your voice, not AI voice
The system prompt encodes your tone, banned words, preferred vocabulary, and identity context. Comments sound like you, not a chatbot.
Reply to comments too
Works on individual comments under posts. Reads both the original post and the comment for full context before generating a reply.
Claude or OpenAI
Uses Claude Haiku or GPT-4o-mini. You choose. Bring your own API key. Estimated cost: less than $1/month at 20 comments per day.
Open source
Full source code on GitHub. Fork it, change the voice prompts, make it yours. No tracking, no accounts, no data collection.
HOW IT WORKS
Four steps. No account needed.
Install the extension
Download the source from GitHub, load it as an unpacked Chrome extension, and add your API key in the settings popup.
Browse LinkedIn normally
GSS buttons appear on every post, article, newsletter, and comment. The extension detects content automatically as you scroll.
Click GSS, pick a style
Choose Agree, Add Value, Question, Challenge, or Witty. The extension reads the content, sends it to the AI, and returns 3 comment options.
Edit and insert
Select an option, edit it in the textarea if needed, then click Insert. The comment is placed directly into LinkedIn's comment box.
COMMENT STYLES
Five modes. Each generates three options.
Grounds agreement in something concrete. A pattern, a data point, a parallel observation. Never generic praise.
Introduces a new dimension the author did not cover. A contrarian nuance, a practical implication, a related insight.
Asks a genuine, specific follow-up question that shows you read the post carefully. One question only.
Respectfully challenges one specific point. States a counter-position with reasoning. Calm, clinical, peer-to-peer.
Dry, deadpan British humour. Funny because it is true. The kind of line you would say with a straight face at a dinner party.
VOICE ENCODING
Not a generic AI. Your voice.
The extension ships with a system prompt that encodes identity, tone, banned words, preferred vocabulary, and strategic context. Every comment is generated through this lens. Fork the repo and replace the prompts with your own voice.
Banned words (33)
Delve, Tapestry, Unlock, Unleash, Elevate, Game-changer, Revolutionize, Foster, Synergy, Holistic, Seamless, Robust, Dynamic, Exciting, Amazing, Incredible, Journey, Authentic, Passionate, Driven, Excited, Thrilled, Grateful...
Preferred vocabulary
Signal, noise, variance, infrastructure, architecture, diagnostic, clinical, pipeline, threshold, baseline, delta, structural shift, redesign, deploy, precise, engineered.
PRIVACY
No tracking. No accounts. No data collection.
The extension runs entirely in your browser. Post content is sent directly from your browser to the AI provider (Anthropic or OpenAI) using your own API key. No data passes through GTM Signal Studio servers.
We do not collect, store, or transmit any LinkedIn data, post content, or personal information. Your API key is stored locally in Chrome's sync storage and never leaves your browser except to authenticate with your chosen AI provider.
For full details, see our Privacy Policy.
Download from GitHub
Clone the repo, load as an unpacked extension in Chrome, add your API key. Full setup instructions in the README.
View on GitHub