Claude Code mod
semantic-grep
A 'search' tool: ranks every function (or file) under a glob by a System One model (Jev, or the open-source decider) against a plain-language query.
Install
/plugin marketplace add alex4o/system-one-mods
/plugin install semantic-grep@system-one-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L3Network: network, runs processes, drives Claude, reads files, draws
- Sees
- mcp__semantic-grep__search calls
- Hooks
session.starttool.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
- alex4o/system-one-mods
- Folder
semantic-grep- Marketplace
system-one-mods- Type
- Workflow mods
- Last updated
- 6 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is semantic-grep?
A 'search' tool: ranks every function (or file) under a glob by a System One model (Jev, or the open-source decider) against a plain-language query. It is a mod for Claude Code, from alex4o/system-one-mods on GitHub.
What can the semantic-grep mod access?
Its widest reach is "network" (network, runs processes, drives Claude, reads files, draws). It sees mcp__semantic-grep__search calls. Like any mod, it runs with your permissions.
How do I install semantic-grep?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add alex4o/system-one-mods and then /plugin install semantic-grep@system-one-mods.
Is semantic-grep popular?
alex4o/system-one-mods has 1 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 6 October 2026.
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