A command that creates a developer onboarding guide for a project. Onboarding means helping a new developer install, understand, and work on the codebase.

Use it to document prerequisites, local setup, environment variables, project structure, development tasks, testing, and deployment.

It gathers setup, architecture, key code paths, testing, and deployment information into one guide instead of leaving newcomers to discover it themselves.

onboarding — Command for Claude Code by nolabs-ai

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/nolabs-ai/claude-extensions

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/commands/nolabs-ai/claude-extensions/onboarding.svg)](https://agentmods.dev/commands/nolabs-ai/claude-extensions/onboarding)

Your own site

<a href="https://agentmods.dev/commands/nolabs-ai/claude-extensions/onboarding"><img src="https://agentmods.dev/badge/commands/nolabs-ai/claude-extensions/onboarding.svg" alt="Measured on agentmods" height="20"></a>

Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 730 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00009	$0.00730
Opus 5	$0.00005	$0.00365
Sonnet 5	$0.00002	$0.00146
Haiku 4.5	$0.00001	$0.00073

Measured 7d ago against content hash 8f5ba5f1dfa1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

onboarding scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

commands/onboarding.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Developer Onboarding Guide

Generate a comprehensive onboarding document for new developers joining the project.

Process

Analyze Project
- Read README.md and existing documentation
- Examine package.json/requirements.txt for dependencies
- Identify key configuration files
Document Setup
- Prerequisites
- Installation steps
- Environment configuration
- Running locally
Explain Architecture
- Project structure
- Key components
- Data flow
- Important patterns
Identify Key Areas
- Critical code paths
- Common development tasks
- Testing approach
- Deployment process

Output Format

Onboarding Guide: [Project Name]

Prerequisites

Before you begin, ensure you have:

[Runtime] version X.X or higher
[Database] running locally or access to dev instance
[Other tools]

Getting Started

1. Clone the Repository

git clone [repo-url]
cd [project-name]

2. Install Dependencies

npm install
# or
pip install -r requirements.txt

3. Configure Environment

cp .env.example .env
# Edit .env with your settings

Required environment variables:

DATABASE_URL - Connection string for database
API_KEY - API key for [service]

4. Run the Application

npm run dev
# or
python manage.py runserver

The app will be available at http://localhost:3000

Project Structure

[project-name]/
├── src/
│   ├── components/   # UI components
│   ├── services/     # Business logic
│   ├── utils/        # Helper functions
│   └── index.js      # Entry point
├── tests/            # Test files
└── docs/             # Documentation

Key Concepts

[Concept 1]

[Explanation of important concept]

[Concept 2]

[Explanation of important concept]

Development Workflow

Running Tests

npm test

Code Style

We use [ESLint/Prettier/Black] for code formatting.

npm run lint

Creating a Branch

git checkout -b feature/your-feature

Read the full file on GitHub · 155 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

7d ago First seen · 155 lines · 9 tokens per session scan A 8f5ba5f1dfa1

Subscribe to this mod's changes

onboarding is a command published in the GitHub repository nolabs-ai/claude-extensions (5 stars, last pushed 8mo ago), licensed MIT. It adds 9 tokens to every session and 730 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Writing and docs

onboarding