dev-onboarding-builder

dev-onboarding-builder is a skill for Claude Code, Codex from patricio0312rev/skillset. It costs 64 tokens per session (3,484 once invoked), scanned A, a copy of dev-onboarding-builder, MIT.

A toolkit for creating developer onboarding materials, including setup instructions, a first task, time estimates, troubleshooting, team introductions, and a tour of the codebase.

In plain words
What is it for?
Use it to prepare an onboarding document and explain the first-day setup, common problems, team context, and key code areas.
Why use it?
It gives new developers a clear path through the tools, access requirements, and unfamiliar parts of a project.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to prepare an onboarding document and explain the first-day setup, common problems, team context, and key code areas.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/patricio0312rev/skillset/dev-onboarding-builder
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.

Any agent
npx skills add patricio0312rev/skillset --skill dev-onboarding-builder
Clone the repo
git clone --depth 1 https://github.com/patricio0312rev/skillset

Made for: Claude Code, Codex.

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.

agentmods badge for dev-onboarding-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/patricio0312rev/skillset/dev-onboarding-builder/github.svg)](https://agentmods.dev/skills/patricio0312rev/skillset/dev-onboarding-builder)
Your own site
<a href="https://agentmods.dev/skills/patricio0312rev/skillset/dev-onboarding-builder"><img src="https://agentmods.dev/badge/skills/patricio0312rev/skillset/dev-onboarding-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dev-onboarding-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/patricio0312rev/skillset/dev-onboarding-builder"><img src="https://agentmods.dev/badge/skills/patricio0312rev/skillset/dev-onboarding-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,484 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. ✓ AI security review Sonnet 5 · 7 Sept 2026 📄 Read the review
Origin 100% copy Near-identical to another mod 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00064 $0.03484
Opus 5 $0.00032 $0.01742
Sonnet 5 $0.00013 $0.00697
Haiku 4.5 $0.00006 $0.00348

Measured 9d ago against content hash 51d14b33a013, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

dev-onboarding-builder 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 9d 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.

Origin

This is a copy

100% identical to dev-onboarding-builder — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

templates/foundation/dev-onboarding-builder/SKILL.md · 557 lines

How it starts

The opening of the file, as written. The whole thing — 557 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Developer Onboarding Builder

Create frictionless first-day experiences for new team members.

Core Workflow

  1. Assess prerequisites: Identify required tools and access
  2. Create setup guide: Step-by-step environment configuration
  3. Design first task: Choose appropriate starter assignment
  4. Add time estimates: Set expectations for each step
  5. Document common issues: Preemptive troubleshooting
  6. Introduce team: Context on people and structure
  7. Provide codebase tour: Walkthrough of key areas

Onboarding Documentation Structure

ONBOARDING.md Template

# Welcome to [Team/Project Name]! 🎉

This guide will help you get set up and productive on your first day.

**Estimated completion time:** 2-3 hours

## Before You Start

### Access Checklist

- [ ] GitHub organization access
- [ ] Slack workspace invitation
- [ ] Email account setup
- [ ] VPN credentials (if remote)
- [ ] Cloud console access (AWS/GCP/Azure)
- [ ] CI/CD dashboard access
- [ ] Project management tool (Jira/Linear)

### Tools to Install

- [ ] Node.js 20+ (via [Volta](https://volta.sh/))
- [ ] pnpm 8+
- [ ] Docker Desktop
- [ ] PostgreSQL 15+
- [ ] VS Code or preferred editor
- [ ] Git configured with your work email

## Day 1: Environment Setup

### Step 1: Clone Repository (5 min)

```bash
git clone [email protected]:company/project-name.git
cd project-name
```

Why: Get the codebase on your machine

Troubleshooting:

  • SSH key not working? See GitHub SSH setup
  • Permission denied? Ask your manager to verify GitHub access

Step 2: Install Dependencies (10 min)

# Install Volta (Node version manager)
curl https://get.volta.sh | bash

# Install dependencies
pnpm install

Expected output: "Dependencies installed successfully"

Troubleshooting:

  • pnpm not found? Restart terminal or run volta install pnpm
  • Installation hangs? Check VPN connection

Read the full file on GitHub · 557 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.

  1. 9d ago First seen · 557 lines · 64 tokens per session scan E 51d14b33a013

Subscribe to this mod's changes

dev-onboarding-builder is a skill published in the GitHub repository patricio0312rev/skillset (6 stars, last pushed 8mo ago), licensed MIT. It adds 64 tokens to every session and 3,484 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to dev-onboarding-builder, differing in 0 lines, and is treated as a copy.

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