What is tandem-split?
tandem-split is a Claude Code mod by mkhaytman87 that live Codex + Claude Code tandem view for the codex-claude-tandem skill: lanes, workflow, animated hand-offs, and a pixel-art Tandem Arcade. It is listed under Games and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | mkhaytman87 |
| Repository | mkhaytman87/tandem-split |
| Popularity | no public popularity data yet |
| Category | Games |
| Security | Review before installing (72/100) |
| Rank | #4,008 of 5,272 Claude Code mods; #80 in Games |
| License | MIT |
| Last commit | 2026-10-09 |
| Hooks | 8 events |
| Sees | every tool call |
| Draws on | Pane |
Is tandem-split safe to install?
tandem-split scores 72/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; 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 processes outside the sandbox | Review |
| Writes no files or config | Pass |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.after | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.list | reads files |
$.fs.read | reads files |
$.fs.stat | reads files |
$.process.run | runs processes |
$.prompt.submit | drives Claude |
$.session.cwd | |
$.session.root | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.blit | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
$.ui.toast | draws interface |
How do I install tandem-split?
- 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/mkhaytman87/tandem-split claude plugin validate ./tandem-split/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add mkhaytman87/tandem-split && claude plugin install tandem-split@tandem-split
Or ask Claude to set it up
Paste this into Claude Code and it installs tandem-split for you:
Install the "tandem-split" Claude Code mod from https://github.com/mkhaytman87/tandem-split. Run claude plugin validate on it first and show me what it can access before you enable it.