Claude Code mod

prompt-shield

Strip invisible fingerprint characters from outgoing prompts and audit what the model actually receives.

Install

Inside Claude Code

/plugin marketplace add boxiaolanya2008/claudecode-plus-mod
/plugin install prompt-shield@claudecode-plus-mod

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

What it can access

Reach: Unknown

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: boxiaolanya2008/claudecode-plus-mod
Folder: mods/prompt-shield
Marketplace: claudecode-plus-mod
Author: claudecode-plus-mod
Type: Workflow mods
Last updated: 7 October 2026
Listed in: awesome-claude-code-mods

FAQ

What is prompt-shield?

Strip invisible fingerprint characters from outgoing prompts and audit what the model actually receives. It is a mod for Claude Code, from boxiaolanya2008/claudecode-plus-mod on GitHub.

What can the prompt-shield mod access?

Its reach could not be worked out from its code. Like any mod, it runs with your permissions.

How do I install prompt-shield?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add boxiaolanya2008/claudecode-plus-mod and then /plugin install prompt-shield@claudecode-plus-mod.

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