Claude Code mod
topic-filter
Keep unrelated topics from pulling Claude off your code: listed terms become stable placeholder names (or their lines are dropped) in tool output, prompts, CLAUDE.md and skills before the model reads them. The system prompt is never changed.
Install
/plugin marketplace add lperezmo/topic-filter-mod
/plugin install topic-filter@topic-filter-modMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L1Reads: reads files, reads env vars, persists state, draws
- Sees
- every tool call, every prompt, the system prompt, every skill
- Draws in
SessionModePane- Hooks
session.startsession.endtool.callprompt.submitprompt.contextprompt.attachmentskill.prompttool.describesession.receivecommand.runui.renderui.press
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
- lperezmo/topic-filter-mod
- Folder
.- Marketplace
topic-filter-mod- Author
- Luis Perez Morales
- License
- GPL-3.0
- Last updated
- 22 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is topic-filter?
Keep unrelated topics from pulling Claude off your code: listed terms become stable placeholder names (or their lines are dropped) in tool output, prompts, CLAUDE.md and skills before the model reads them. The system prompt is never changed. It is a mod for Claude Code, from lperezmo/topic-filter-mod on GitHub.
What can the topic-filter mod access?
Its widest reach is "reads" (reads files, reads env vars, persists state, draws). It sees every tool call, every prompt, the system prompt, every skill. It draws in SessionMode, Pane. Like any mod, it runs with your permissions.
How do I install topic-filter?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add lperezmo/topic-filter-mod and then /plugin install topic-filter@topic-filter-mod.
Is topic-filter popular?
lperezmo/topic-filter-mod has 1 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 22 October 2026.
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