Claude Code mod

session-rail

A side pane with the session's environment, context use, outputs, connectors and dev servers

Context & usage mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add MahadSalim/claude-mods
/plugin install session-rail@claude-mods

Mods install like plugins. Run /reload-plugins or start a new session to load it.

What it can access

Reach
L3Network: network, runs processes, drives Claude, reads files, reads env vars, reads mod state, draws
Sees
every tool call
Draws in
Pane
Hooks
session.startcommand.runturn.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.
Claude Code docs

Details

Repository
MahadSalim/claude-mods
Folder
session-rail
Marketplace
claude-mods
Type
Context & usage mods
Last updated
28 October 2026
Listed in
awesome-claude-code-mods

FAQ

What is session-rail?

A side pane with the session's environment, context use, outputs, connectors and dev servers It is a mod for Claude Code, from MahadSalim/claude-mods on GitHub.

What can the session-rail mod access?

Its widest reach is "network" (network, runs processes, drives Claude, 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 session-rail?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add MahadSalim/claude-mods and then /plugin install session-rail@claude-mods.

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