Claude Code mod
modsmith
A workbench for building Claude Code mods: which mods loaded, a live tape of every event with its real payload, the four ship gates on the mod in progress, and tools so Claude can read payloads and run the gates itself
Install
/plugin marketplace add barmoshe/bar-mods
/plugin install modsmith@bar-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: runs processes, drives Claude, writes the clipboard, reads files, reads env vars, reads settings, reads mod state, draws
- Sees
- every prompt, subagent spawns, compaction, every tool call
- Draws in
AbovePromptPane- Hooks
session.startsession.endplugin.registerprompt.submitturn.startturn.completeagent.spawnsession.compacttool.callcommand.runui.pressui.inputui.selectsession.appendui.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
- barmoshe/bar-mods
- Folder
modsmith- Marketplace
bar-mods- Author
- Bar Moshe
- License
- MIT
- Last updated
- 21 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is modsmith?
A workbench for building Claude Code mods: which mods loaded, a live tape of every event with its real payload, the four ship gates on the mod in progress, and tools so Claude can read payloads and run the gates itself It is a mod for Claude Code, from barmoshe/bar-mods on GitHub.
What can the modsmith mod access?
Its widest reach is "writes or runs" (runs processes, drives Claude, writes the clipboard, reads files, reads env vars, reads settings, reads mod state, draws). It sees every prompt, subagent spawns, compaction, every tool call. It draws in AbovePrompt, Pane. Like any mod, it runs with your permissions.
How do I install modsmith?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add barmoshe/bar-mods and then /plugin install modsmith@bar-mods.
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