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Lerna

v1.3.1

Lerna monorepo management skills with bootstrap validation hooks.

Installation

Install han binary (required for hooks to work):

curl -fsSL https://han.guru/install.sh | bash

Then install this plugin:

han plugin install jutsu-lerna

Overview

Lerna monorepo management skills with bootstrap validation hooks for Claude Code.

Features

  • Automatic dependency bootstrapping: Ensures lerna bootstrap runs when package dependencies change
  • Smart caching: Only runs when relevant files have changed
  • CI-like behavior: Tries --ci flag first for faster installs, falls back to regular bootstrap

Installation

han plugin install jutsu-lerna

Hooks

bootstrap (Stop hook)

Automatically runs when you stop Claude Code to ensure monorepo dependencies are properly linked:

  • Detects directories containing lerna.json
  • Only runs if package.json, lerna.json, or lockfiles have changed since last successful run
  • Attempts lerna bootstrap --ci first for faster, reproducible installs
  • Falls back to lerna bootstrap if needed

Configuration

You can customize the hook behavior in your project's han-config.yml:

jutsu-lerna:
  hooks:
    bootstrap:
      enabled: true
      # Override the command if needed
      # command: "npx lerna bootstrap"

To disable the hook for a specific project:

jutsu-lerna:
  hooks:
    bootstrap:
      enabled: false

Note

For modern Lerna (v7+) using npm/yarn/pnpm workspaces, the bootstrap command links local packages and installs remaining dependencies. Consider using jutsu-npm or jutsu-yarn alongside this plugin for complete dependency management.

Hooks

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Token Usage Notice

Hooks run automatically during Claude Code sessions and their output is sent to the model for processing. This may increase token usage and associated costs. Consider disabling hooks you don't need via han-config.yml.

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Stop

Runs when the main Claude Code agent has finished responding. Can verify task completion, check quality gates, or ensure documentation requirements are met before the session ends.

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SubagentStop

Runs when a Claude Code subagent (Task tool call) has finished responding. Can validate subagent outputs, enforce quality standards, or trigger additional workflows after delegated tasks complete.