Claude Code mod
lexi
Test-first workflow for coding agents, without the spec ceremony. A PreToolUse hook keeps source edits behind a mirror test and protects existing assertions; the flow drives one vertical slice at a time, red to green, through the project's own gate. Ships its own tdd and grill skills; includes the Jev layer (model and effort routing, compaction, review), required like ponytail and the interface (usage row, gate, subagents); requires ponytail for the implementation step and caveman for terse output.
Install
/plugin marketplace add savinofiore/lexi
/plugin install lexi@lexiMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L3Network: network, reads files, reads env vars, reads mod state, draws
- Sees
- every prompt, subagent spawns, compaction, every tool call
- Draws in
AbovePromptPane- Hooks
session.startsession.endprompt.submitturn.stepagent.spawnsession.compactcommand.runtool.callturn.completesession.measureui.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.
Details
- Repository
- savinofiore/lexi
- Folder
.- Marketplace
lexi- Author
- Savino Fiore
- License
- MIT
- Last updated
- 27 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is lexi?
Test-first workflow for coding agents, without the spec ceremony. A PreToolUse hook keeps source edits behind a mirror test and protects existing assertions; the flow drives one vertical slice at a time, red to green, through the project's own gate. Ships its own tdd and grill skills; includes the Jev layer (model and effort routing, compaction, review), required like ponytail and the interface (usage row, gate, subagents); requires ponytail for the implementation step and caveman for terse output. It is a mod for Claude Code, from savinofiore/lexi on GitHub.
What can the lexi mod access?
Its widest reach is "network" (network, reads files, reads env vars, reads mod state, draws). It sees every prompt, subagent spawns, compaction, every tool call. It draws in AbovePrompt, Pane. Like any mod, it runs with your permissions.
How do I install lexi?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add savinofiore/lexi and then /plugin install lexi@lexi.
Is lexi popular?
savinofiore/lexi has 4 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 27 October 2026.
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