What is rail-runner?
rail-runner is a Claude Code mod by tylergraydev that an ASCII endless runner that plays in a side pane while Claude is working. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | tylergraydev |
| Repository | tylergraydev/rail-runner |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | Low risk (80/100) |
| Rank | #4,925 of 5,272 Claude Code mods; #2,011 in Interface |
| Last commit | 2026-10-07 |
| Hooks | 6 events |
| Sees | every prompt |
| Draws on | Pane |
Is rail-runner safe to install?
rail-runner scores 80/100 on the MCPMods security check: Low risk. Things to review: watches every prompt or event. 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 no files or config | Pass |
| Doesn't read environment variables | Pass |
| Watches every prompt or event | Review |
| Doesn't drive Claude | Pass |
| Validator reported problems | Note |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.command.register | |
$.state.get | |
$.state.set | |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install rail-runner?
- 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/tylergraydev/rail-runner claude plugin validate ./rail-runner/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
git clone https://github.com/tylergraydev/rail-runner && claude --plugin-dir ./rail-runner/.
Or ask Claude to set it up
Paste this into Claude Code and it installs rail-runner for you:
Install the "rail-runner" Claude Code mod from https://github.com/tylergraydev/rail-runner. Run claude plugin validate on it first and show me what it can access before you enable it.