Claude Code mod
jr-pkg-guard
Checks every package install against its registry first: names that do not exist (hallucinated or typosquatted) are refused, very new packages are held back or flagged, install scripts are flagged.
Install
/plugin marketplace add jrlprost/claude-code-mods
/plugin install jr-pkg-guard@claude-code-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L3Network: network, draws
- Sees
- Bash calls
- Hooks
tool.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.
Details
- Repository
- jrlprost/claude-code-mods
- Folder
plugins/jr-pkg-guard- Marketplace
claude-code-mods- Author
- jrlprost
- License
- MIT
- Last updated
- 25 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is jr-pkg-guard?
Checks every package install against its registry first: names that do not exist (hallucinated or typosquatted) are refused, very new packages are held back or flagged, install scripts are flagged. It is a mod for Claude Code, from jrlprost/claude-code-mods on GitHub.
What can the jr-pkg-guard mod access?
Its widest reach is "network" (network, draws). It sees Bash calls. Like any mod, it runs with your permissions.
How do I install jr-pkg-guard?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add jrlprost/claude-code-mods and then /plugin install jr-pkg-guard@claude-code-mods.
Is jr-pkg-guard popular?
jrlprost/claude-code-mods has 4 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 25 October 2026.
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