grip-post

grip-post

A LinkedIn tool that refuses to write fluff.

What it is

A Chrome extension that helps you write better LinkedIn posts: Unicode formatting + a gate that refuses to write fluff.

Why

• LinkedIn's native editor strips most Unicode formatting. grip-post applies it via a side panel so it survives copy-paste.
• Most AI writing tools produce the same hollow phrases. grip-post flags them before you publish.
• You get seven Unicode transforms free. The AI closer rewriter is Pro ($4/mo, early access — ships in v0.3).

Install

Chrome Web Store: coming W11 (June 2026).

Dev build (load unpacked):

git clone https://github.com/CodeTonight-SA/grip-post.git
cd grip-post
npm install
npm run build

Then open chrome://extensions, enable Developer Mode, click "Load unpacked", and select the dist/ folder.

Package (produces grip-post-<version>.zip for Chrome Web Store upload):

npm run package

Runs build → verify-build (capability-lock assertion on the artefact's permissions + host_permissions + content-script matches) → zips dist/. Fails loud if the build widened the permission surface.

Safari

grip-post runs in Safari too — same transforms, same anti-fluff gate, same core.

Test-drive now (zero install, any browser):

npm install
npm run dev:web

Open the printed localhost URL in Safari. The side-panel UI runs as a normal web page (drafts + stats are in-memory only in this mode).

Full Safari extension (toolbar popup, context menus, persistent storage) — Safari Web Extensions must be built into an app bundle by full Xcode (there is no "load unpacked"):

sudo xcode-select -s /Applications/Xcode.app/Contents/Developer   # one-time
npm run package:safari

This builds the Safari target and runs safari-web-extension-converter to generate an Xcode project — open it, Build (Cmd-B), then enable grip-post in Safari -> Settings -> Extensions. Full details: docs/SAFARI.md.

Pro tier (early access)

$4/mo subscription unlocks the AI closer rewriter + R0 grounding semantic check + reason-out-loud. The rewriter itself ships in v0.3 — routes through HAL (Harness Abstraction Layer, CodeTonight's proprietary inference router) with an anti-fluff floor BEFORE the LLM call so banned phrases never reach the model. Subscribing now locks the early-bird price and funds the build.

Buy: polar.sh/architext1/grip-post-pro

Claude Code plugin (terminal)

grip-post is also a Claude Code plugin. The same src/lib core that powers the Chrome side panel runs in your terminal — one core, two surfaces, identical behaviour.

Install (inside Claude Code):

/plugin marketplace add CodeTonight-SA/grip-post
/plugin install grip-post@grip-post

Requires Node ≥ 20 — the command runs the core via npx tsx (fetched on first use).

Use — plugin skills are namespaced /<plugin>:<skill>, so the command is /grip-post:grip-post:

/grip-post:grip-post check        We are thrilled to announce…  -> DENY: "thrilled to announce"
/grip-post:grip-post bold         Hiring three engineers         -> 𝗛𝗶𝗿𝗶𝗻𝗴 𝘁𝗵𝗿𝗲𝗲 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝘀
/grip-post:grip-post italic       a quiet aside                  -> 𝘢 𝘲𝘶𝘪𝘦𝘵 𝘢𝘴𝘪𝘥𝘦
/grip-post:grip-post strip-tells  <your draft>                   -> removes AI tells

No plugin system? Run the CLI directly: npx tsx bin/grip-post.ts check --file draft.txt.

Full command reference + verdict semantics: docs/CLAUDE_CODE_PLUGIN.md.

Contributing

See CONTRIBUTING.md and the open issues for the current roadmap.