Codebase Onboarding Agent: New Engineer Ready in Hours, Not Weeks

An AI agent that reads your codebase, generates an interactive onboarding map, and produces a tailored ramp plan.

TL;DR: Read your codebase, generate an interactive onboarding map, identify the high-leverage files every new engineer needs to read first — all from a single CLI command.

The 10-Second Pitch

What it is: A codebase analysis agent that produces an interactive onboarding guide from a git repo.
Who it's for: Engineering managers, platform teams, any org with onboarding debt.
Why it matters: Onboarding friction compounds. Every engineer who takes 2 weeks instead of 2 days to become productive is a tax on team output.
Stack: Node.js, reads git history and source files.

Setup Directions

Prerequisites

Node.js >= 18
A git repo with at least 50 commits

Step 1 - Install

bash npm install @mrtech/codebase-onboarding --save-dev

Step 2 - Generate

bash npx codebase-onboarding generate --repo ./ --out ./onboarding/

Step 3 - Open Dashboard

bash npx codebase-onboarding serve --port 3002

Pros / Cons

Dimension	Rating	Notes
Speed	5/5	Full map in under 2 minutes
File Ranking	4/5	Git history + AST analysis surfaces key files
Interactive Output	4/5	HTML dashboard with navigable dependency graph

Verdict

Codebase Onboarding addresses onboarding debt directly. The dependency graph visualization alone is worth the install. Re-run it quarterly or after major refactors.

Skill: codebase-onboarding | Ecosystem: claude-code | Runtime: node | Auth: api-key