Claude Code mod
trail
A side pane of every file Claude reads or changes this session, in any folder or drive, lit up live (reads purple, writes orange) with +/- line counts. Watches tool calls only: no model calls, no tokens. /trail opens it.
Install
/plugin marketplace add smhasan-yad/claude-mod-trail
/plugin install trail@claude-mod-trailMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L1Reads: writes the clipboard, reads files, reads env vars, reads mod state, draws
- Sees
- every tool call
- Draws in
Pane- Hooks
session.startcommand.runtool.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
- smhasan-yad/claude-mod-trail
- Folder
.- Marketplace
claude-mod-trail- License
- MIT
- Last updated
- 8 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is trail?
A side pane of every file Claude reads or changes this session, in any folder or drive, lit up live (reads purple, writes orange) with +/- line counts. Watches tool calls only: no model calls, no tokens. /trail opens it. It is a mod for Claude Code, from smhasan-yad/claude-mod-trail on GitHub.
What can the trail mod access?
Its widest reach is "reads" (writes the clipboard, reads files, reads env vars, reads mod state, draws). It sees every tool call. It draws in Pane. Like any mod, it runs with your permissions.
How do I install trail?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add smhasan-yad/claude-mod-trail and then /plugin install trail@claude-mod-trail.
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