What is pm-guard?
pm-guard is a Claude Code mod by narrowstacks that steers npm/npx/yarn to the package manager the repo's lockfile names (bun or pnpm), bun where there is none. It is listed under Security and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | narrowstacks |
| Repository | narrowstacks/claude-code-mods |
| Popularity | no public popularity data yet |
| Category | Security |
| Security | Low risk (80/100) |
| Rank | #4,093 of 5,272 Claude Code mods; #428 in Security |
| Last commit | 2026-10-09 |
| Hooks | 1 events |
| Sees | Bash calls |
| Draws on | nothing |
Is pm-guard safe to install?
pm-guard scores 80/100 on the MCPMods security check: Low risk. Things to review: reads environment variables. It passed 5 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 no processes | Pass |
| Writes no files or config | Pass |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Validator reported problems | Note |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.env.get | reads env vars |
$.fs.exists | reads files |
$.session.cwd |
How do I install pm-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/narrowstacks/claude-code-mods claude plugin validate ./claude-code-mods/pm-guard
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add narrowstacks/claude-code-mods && claude plugin install pm-guard@claude-code-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs pm-guard for you:
Install the "pm-guard" Claude Code mod from https://github.com/narrowstacks/claude-code-mods/tree/master/pm-guard. Run claude plugin validate on it first and show me what it can access before you enable it.
More from narrowstacks/claude-code-mods
This repository has at least 9 Claude Code mods on MCPMods.
- agent-jobs: /jobs pane: running subagents and background shells with elapsed time and Stop; a toast when background work finishes (Review before installing)
- agent-models: Pins the model each subagent type runs on, set in /config or with /agent-models (Low risk)
- context-watch: Context fill, cost and rate limits in the status line; threshold toasts; compaction that keeps edited files; /ctx breakd (Low risk)
- handoff: /carryover writes a state note from the conversation, clears, and carries the note into the fresh context (Review before installing)
- house-style: Enforces the no-em-dash rule: a system prompt section, a reminder to the model after a write that adds one, a toast when (Low risk)
- live-spinner: Spinner says what is actually running: the Bash command, the file being read or edited, the search, the subagent (Low risk)
- pr-rules: Blocks gh pr create / gt submit when a repo with an [Unreleased] changelog has no entry on the branch, and (where the re (Review before installing)
- pr-watch: Tracks PRs the session touches, shows their checks above the prompt, toasts on green/red/merged, and stops foreground CI (Low risk)