Claude Code mod

topic-guard

Before a prompt enters the session, a small model judges whether it belongs to the session's topic. When it starts a separate topic, the mod holds it in the prompt box: press Enter to keep it here, or New session to clear the session and send it there.

4 starsGuard & safety mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add dougcunha/claude-mods
/plugin install topic-guard@claude-mods

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

What it can access

Reach
L3Network: MCP servers, writes files, changes config, drives Claude, writes the prompt box, reads files, reads env vars, reads the transcript, reads the prompt box, reads mod state, draws
Sees
every prompt
Draws in
AbovePrompt
Hooks
session.startprompt.submitui.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

Repository
dougcunha/claude-mods
Folder
topic-guard
Marketplace
claude-mods
Author
Douglas Cunha
Type
Guard & safety mods
License
MIT
Last updated
31 October 2026
Listed in
awesome-claude-code-mods

FAQ

What is topic-guard?

Before a prompt enters the session, a small model judges whether it belongs to the session's topic. When it starts a separate topic, the mod holds it in the prompt box: press Enter to keep it here, or New session to clear the session and send it there. It is a mod for Claude Code, from dougcunha/claude-mods on GitHub.

What can the topic-guard mod access?

Its widest reach is "network" (MCP servers, writes files, changes config, drives Claude, writes the prompt box, reads files, reads env vars, reads the transcript, reads the prompt box, reads mod state, draws). It sees every prompt. It draws in AbovePrompt. Like any mod, it runs with your permissions.

How do I install topic-guard?

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

Is topic-guard popular?

dougcunha/claude-mods has 4 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 31 October 2026.

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