Claude Code mod
xo
Tic-tac-toe against Claude, in a pane. Press a digit to play a square; Claude answers in half a second at three levels, from beatable to perfect. Zero tokens.
Install
/plugin marketplace add MDmubarak786/claude-mods
/plugin install xo@modhubMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L1Reads: reads mod state, persists state, draws
- Sees
- classic hooks
- Draws in
Pane- Hooks
session.startclassic.SessionStartcommand.runui.closeui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- MDmubarak786/claude-mods
- Folder
mods/xo- Marketplace
modhub- Author
- Mohammed Mubarak
- License
- MIT
- Last updated
- 27 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is xo?
Tic-tac-toe against Claude, in a pane. Press a digit to play a square; Claude answers in half a second at three levels, from beatable to perfect. Zero tokens. It is a mod for Claude Code, from MDmubarak786/claude-mods on GitHub.
What can the xo mod access?
Its widest reach is "reads" (reads mod state, persists state, draws). It sees classic hooks. It draws in Pane. Like any mod, it runs with your permissions.
How do I install xo?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add MDmubarak786/claude-mods and then /plugin install xo@modhub.
Is xo popular?
MDmubarak786/claude-mods has 1 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 27 October 2026.
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