What is horn?
horn is a Claude Code mod by DJPalefaceSD that one chord to send now: /horn sets Ctrl+X Ctrl+X to send a waiting message right away, like a tap on the horn, and the hint under the prompt says so. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | DJPalefaceSD |
| Repository | DJPalefaceSD/rostech-mods |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | Review before installing (72/100) |
| Rank | #3,071 of 5,272 Claude Code mods; #1,275 in Interface |
| Last commit | 2026-10-11 |
| Hooks | 3 events |
| Sees | only the events it hooks |
| Draws on | PromptHint |
Is horn safe to install?
horn scores 72/100 on the MCPMods security check: Review before installing. Things to review: writes files or config; reads environment variables. It passed 5 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts no processes | Pass |
| Writes files or config | Review |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.read | reads files |
$.fs.write | writes files |
How do I install horn?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/DJPalefaceSD/rostech-mods claude plugin validate ./rostech-mods/plugins/horn
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add DJPalefaceSD/rostech-mods && claude plugin install horn@rostech
Or ask Claude to set it up
Paste this into Claude Code and it installs horn for you:
Install the "horn" Claude Code mod from https://github.com/DJPalefaceSD/rostech-mods/tree/main/plugins/horn. Run claude plugin validate on it first and show me what it can access before you enable it.
More from DJPalefaceSD/rostech-mods
This repository has at least 9 Claude Code mods on MCPMods.
- bumper-sticker: Your own words on the busy line while Claude works, in place of Baking, Brewing and the rest. (Low risk)
- clip: Put text on your clipboard from the prompt, cleaned of terminal clutter. (Low risk)
- rostech-dashboard: A Dashboard button above the prompt that opens a panel you fill yourself: effort, helper model, launch buttons and a sta (Low risk)
- gas-gauge: A fuel gauge above the prompt: how much of your Claude plan is left, and when it refills. (Low risk)
- rostech-glovebox: Keeps the notes that matter in the glovebox, and hands them back to Claude after it compacts its memory. Text notes only (Review before installing)
- hands-off: Files you mark as yours: Claude cannot edit them until you hand them back. (Low risk)
- logo: Your own logo on the dash above the prompt, between your other bands. (Low risk)
- odometer: An odometer above the prompt: how long this session has run and what it has cost. (Low risk)