A strategic tool for planning, estimating, and tracking large-scale codebase migrations from framework upgrades to language transitions.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install codebase-migration-planner
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install codebase-migration-planner using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Codebase Migration Planner?
The Codebase Migration Planner is a specialized utility within the Openclaw Skills ecosystem designed to handle the high-stakes complexity of major architectural shifts. Whether you are transitioning a project from JavaScript to TypeScript, upgrading legacy React class components to Hooks, or decomposing a monolith into microservices, this skill provides the analytical framework necessary for success.
By leveraging automated codebase inventory and target analysis, it transforms vague migration goals into concrete, phased execution plans. It helps teams understand the total lines of code involved, detects existing frameworks, and identifies specific risks such as low test coverage or incompatible API patterns, ensuring that the migration process is predictable and measurable from start to finish.
Codebase Migration Planner Use Cases
- Planning the transition of a legacy frontend from React class components to modern functional hooks.
- Mapping the incremental adoption of TypeScript within a large-scale JavaScript repository.
- Transitioning backend services between frameworks, such as moving from Express to Fastify or Koa.
- Modernizing build pipelines by migrating from Webpack or Rollup to Vite.
- Decomposing monolithic applications into a microservices architecture using domain-driven design.
How Codebase Migration Planner Works
- The user initiates an assessment to inventory the current language distribution, total lines of code, and framework dependencies.
- The skill performs a migration target analysis to identify API surface differences and incompatible code patterns.
- A phased migration plan is generated, categorizing work into preparation, foundation, core libraries, and feature migration.
- Available codemods and automated transformation tools are identified to reduce manual effort.
- Risks are assessed by checking dependency compatibility and identifying critical files lacking test coverage.
- Progress is managed through a dynamic MIGRATION.md file that tracks completion percentages across the codebase.
Codebase Migration Planner Setup
To start using this specific skill within your environment, ensure you have the Openclaw Skills framework configured. You can initialize a migration assessment by running the following commands in your project root:
# Analyze the current codebase state
# This will inventory languages, lines of code, and dependencies
skill codebase-migration-planner assess
# Generate a phased migration roadmap
skill codebase-migration-planner plan --from javascript --to typescript
Codebase Migration Planner Data Schema & Taxonomy
The skill generates and manages structured data to maintain migration visibility. The primary data outputs include:
| Component | Format | Description |
|---|---|---|
| MIGRATION.md | Markdown | A team-facing document tracking file-by-file progress, status, and remaining work. |
| Migration Plan | Markdown/JSON | A detailed roadmap including phase timelines, effort estimates, and risk levels. |
| Inventory Report | Text | A breakdown of file types, lines of code, and detected framework versions. |
| Risk Matrix | Table | A mapping of dependencies and files that require manual verification due to complexity or lack of tests. |
Codebase Migration Planner Advanced Features
- Heuristic-based effort estimation that calculates person-hours based on file complexity and test coverage.
- Automated discovery of community-standard codemods for React, Vue, and TypeScript migrations.
- Support for dual-stack configuration planning to allow incremental migrations without breaking existing CI/CD pipelines.
- Multi-format output support including stakeholder-ready Markdown tables and machine-readable JSON for integration into other Openclaw Skills.
SKILL.md
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