Claude Code mod
simaphore
Traffic lights for iOS simulators and Xcode builds when several Claude Code agents share one Mac: a live panel, a build queue and simulator leases.
Install
/plugin marketplace add omaestra/simaphore
/plugin install simaphore@simaphoreMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: runs processes, writes files, changes config, reads files, reads env vars, reads settings, reads the transcript, reads mod state, draws
- Sees
- every prompt, subagent spawns, every tool call
- Draws in
Pane- Hooks
config.setsession.startsession.endcommand.runui.closeui.focusprompt.submitagent.spawnturn.completetool.callui.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
- omaestra/simaphore
- Folder
.- Marketplace
simaphore- Author
- omaestra
- License
- MIT
- Last updated
- 12 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is simaphore?
Traffic lights for iOS simulators and Xcode builds when several Claude Code agents share one Mac: a live panel, a build queue and simulator leases. It is a mod for Claude Code, from omaestra/simaphore on GitHub.
What can the simaphore mod access?
Its widest reach is "writes or runs" (runs processes, writes files, changes config, reads files, reads env vars, reads settings, reads the transcript, reads mod state, draws). It sees every prompt, subagent spawns, every tool call. It draws in Pane. Like any mod, it runs with your permissions.
How do I install simaphore?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add omaestra/simaphore and then /plugin install simaphore@simaphore.
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