Claude Code mod

ghost-proc-guard

Stops Claude from starting a second copy of your dev servers on the next free port (monorepos and worktrees included), tracks the servers it starts, and stops leftovers from a /procs pane.

Guard & safety mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add thieung/claude-mods
/plugin install ghost-proc-guard@thieung-mods

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 files, reads mod state, persists state, draws
Sees
Bash calls
Draws in
Pane
Hooks
session.starttool.callcommand.runui.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

Folder
ghost-proc-guard
Marketplace
thieung-mods
Author
Thieu Nguyen
License
MIT
Last updated
5 October 2026

FAQ

What is ghost-proc-guard?

Stops Claude from starting a second copy of your dev servers on the next free port (monorepos and worktrees included), tracks the servers it starts, and stops leftovers from a /procs pane. It is a mod for Claude Code, from thieung/claude-mods on GitHub.

What can the ghost-proc-guard mod access?

Its widest reach is "writes or runs" (runs processes, reads files, reads mod state, persists state, draws). It sees Bash calls. It draws in Pane. Like any mod, it runs with your permissions.

How do I install ghost-proc-guard?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add thieung/claude-mods and then /plugin install ghost-proc-guard@thieung-mods.

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