Codebase Onboarding — Data skill for Claude Code
A Claude skill that turns any codebase into an interactive onboarding map: services, auth, request flows, data, APIs and setup, in one offline HTML page.
How to install Codebase Onboarding
This entry records only its repository, not the path inside it, so there is no
exact command to give. Open Shuashuaa/codebase-onboarding and copy the folder into
~/.claude/skills/, or the file into ~/.claude/agents/.
What Codebase Onboarding does
A Claude skill that turns any codebase into an interactive onboarding map: services, auth, request flows, data, APIs and setup, in one offline HTML page.
Alternatives in Data
- Financial Services — Reference agents, skills, and data connectors for the financial-services workflows we see most — investment ba 34.5k ★
- 12 Services Layer — Prompt 12: Wire Up Services Layer (Analytics, Policy, Settings, Sessions) 2.3k ★
- Claude Code Memory Setup — Up to 71.5x fewer tokens per session on Claude Code with Obsidian + Graphify 947 ★
README
codebase-onboarding
A Claude skill that turns any codebase into an interactive onboarding map: services, auth, request flows, data, APIs and setup, in one offline HTML page.
New to a project? Ask Claude *"I'm new to this repo. Map how it fits together."* and get `docs/onboarding/atlas.html`: a page you can open in any browser, commit, and share with the next new teammate.
**Disclaimer:** The demo and screenshots show an atlas generated from [aws-samples/aws-sam-nested-stack-sample](https://github.com/aws-samples/aws-sam-nested-stack-sample), a public AWS sample repository (Apache-2.0). It is used only to demonstrate what this skill produces on a real codebase. This project is not affiliated with or endorsed by Amazon Web Services, and no code from that repository is included here.
What you get
| Tab | Answers |
|---|---|
| Overview | What is this system? Where do I start? (guided tour, open questions) |
| Service map | How do frontend → auth → gateway → compute → queues → data connect? |
| Flows | What happens, step by step, when a user logs in or places an order? |
| APIs | Which endpoints exist, who handles them, what auth they need |
| Auth | Identity provider, tokens, where they're verified, roles |
| Data | Entities, keys, access patterns, owning service |
| Code | Entry points and modules |
| Run & ship | Local setup, environments, config keys (names only), CI/CD |
| Operate | Logs, alarms, symptom → check → fix runbooks |
| Context | Glossary, owners, decisions, hotspots |
Every component and connection is marked **declared** (found in config or code) or **inferred** (Claude's reasoned guess, drawn dashed). Anything the repo can't answer becomes an open question instead of a made-up fact.
Works with
AWS (Serverless Framework, SAM, CloudF
Related Skills
Cad Tour
Interactive codebase architecture onboarding tour and data-flow map.
Codebase To Dojo
Enhanced version of codebase-to-course. A Claude Code Skill that transforms any codebase into a stunning inter
Zzon Doc
Claude Code plugin that turns your codebase into interactive, dependency-free architecture diagrams (infra · d
Aoci Code
Local-first MCP server + CLI in Go: a persistent, governed codebase index that distills code and database sche
Hypothesis Agent
Generate high-value, non-obvious attack hypotheses from recon data during bug bounty hunting. Use this skill w
Backend Architect
Design RESTful APIs, microservice boundaries, and database schemas. Reviews system architecture for scalabilit
Related Agents
Backend Integration Agent
Use this agent for any backend question — choosing a backend for a new project, integrating Firebase, Supabase
Harness Backend Dev
Backend engineer — APIs, endpoints, services, business logic, auth flows, background jobs and server-side inte
Solution Map Render
Fills four of the solution-map HTML template's five slots from the generated markdown files and the map JSON,
