Claude Code mod

port-watch

A live side pane of the local TCP ports that listen, with the process name and pid, refreshed every 10 seconds while open. Reads lsof (macOS, most Linux). Open it with /ports.

3 starsPane & dashboard mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add baselane-sh/mods
/plugin install port-watch@baselane-mods-dev

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

What it can access

Reach
L2Writes or runs: runs processes, reads mod state, draws
Sees
every tool call
Draws in
Pane
Hooks
session.startui.closeui.rendercommand.runtool.call

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
baselane-sh/mods
Folder
plugins/port-watch
Marketplace
baselane-mods-dev
Author
Baselane
Type
Pane & dashboard mods
License
MIT
Last updated
6 October 2026
Listed in
awesome-claude-code-mods

FAQ

What is port-watch?

A live side pane of the local TCP ports that listen, with the process name and pid, refreshed every 10 seconds while open. Reads lsof (macOS, most Linux). Open it with /ports. It is a mod for Claude Code, from baselane-sh/mods on GitHub.

What can the port-watch mod access?

Its widest reach is "writes or runs" (runs processes, 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 port-watch?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add baselane-sh/mods and then /plugin install port-watch@baselane-mods-dev.

Is port-watch popular?

baselane-sh/mods has 3 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 6 October 2026.

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