What is ghost-proc-guard?
ghost-proc-guard is a Claude Code mod by thieung that 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 listed under Security and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | thieung |
| Repository | thieung/claude-mods |
| Popularity | no public popularity data yet |
| Category | Security |
| Security | Low risk (88/100) |
| Rank | #4,824 of 5,272 Claude Code mods; #498 in Security |
| License | MIT |
| Last commit | 2026-10-05 |
| Hooks | 4 events |
| Sees | Bash calls |
| Draws on | Pane |
Is ghost-proc-guard safe to install?
ghost-proc-guard scores 88/100 on the MCPMods security check: Low risk. Things to review: starts processes outside the sandbox. It passed 7 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts processes outside the sandbox | Review |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.clock.now | |
$.clock.sleep | |
$.command.register | |
$.fs.list | reads files |
$.fs.read | reads files |
$.process.run | runs processes |
$.session.cwd | |
$.session.id | |
$.session.root | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
$.ui.toast | draws interface |
How do I install ghost-proc-guard?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/thieung/claude-mods claude plugin validate ./claude-mods/ghost-proc-guard
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add thieung/claude-mods && claude plugin install ghost-proc-guard@thieung-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs ghost-proc-guard for you:
Install the "ghost-proc-guard" Claude Code mod from https://github.com/thieung/claude-mods/tree/main/ghost-proc-guard. Run claude plugin validate on it first and show me what it can access before you enable it.
More from thieung/claude-mods
This repository has 3 Claude Code mods on MCPMods.
- ak-cockpit: AgentKit cockpit above the prompt: context fill with a handoff nudge, and the active plan's phase and checklist. (Low risk)
- worktree-guard: Guards a shared worktree: stops `git add -A` from staging files this session did not touch, previews destructive git com (Low risk)