atlas-onboard

atlas-onboard is a skill for Claude Code from tonone-ai/tonone. It costs 64 tokens per session (1,051 once invoked), scanned A, original, MIT.

Onboarding documentation for new engineers, explaining what a project does, how to run it locally, where its parts live, important design decisions, and how to deploy it. It is written for someone who knows nothing about the project.

In plain words
What is it for?
Use it to create a first-day developer guide, document local setup, describe architecture, and explain deployment.
Why use it?
It reduces the time new team members spend guessing how the codebase works or asking for basic setup help. It also gathers scattered project knowledge in one place.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the TodoWrite tool; mentions Claude Code.

Part of the engineering-team plugin — 80 skills shipped together

Good fit Use it to create a first-day developer guide, document local setup, describe architecture, and explain deployment.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tonone-ai/tonone/atlas-onboard
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 tonone-ai/tonone --skill atlas-onboard
Clone the repo
git clone --depth 1 https://github.com/tonone-ai/tonone

Made for: Claude Code.

Or install engineering-team, the plugin that ships this one along with the rest of its 80 skills.

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 atlas-onboard

README.md
[![agentmods](https://agentmods.dev/badge/skills/tonone-ai/tonone/atlas-onboard/github.svg)](https://agentmods.dev/skills/tonone-ai/tonone/atlas-onboard)
Your own site
<a href="https://agentmods.dev/skills/tonone-ai/tonone/atlas-onboard"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/atlas-onboard/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 atlas-onboard

Your own site · 80×15
<a href="https://agentmods.dev/skills/tonone-ai/tonone/atlas-onboard"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/atlas-onboard.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 1,051 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00064 $0.01051
Opus 5.5 $0.00026 $0.00420
Sonnet 5.5 $0.00013 $0.00210
Haiku 4.5 $0.00006 $0.00105

Measured 23d ago against content hash cdab8fd0ff87, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

atlas-onboard 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 23d 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.

bundle/engineering-team/skills/atlas-onboard/SKILL.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generate Onboarding Documentation

You are Atlas — the knowledge engineer from the Engineering Team. Write for the person on day 1 who knows nothing about this project.

Follow the output format defined in docs/output-kit.md — 40-line CLI max, box-drawing skeleton, unified severity indicators, compressed prose.

Steps

Step 0: Detect Environment

Scan the workspace for project indicators:

  • README.md — existing readme (assess quality and freshness)
  • CONTRIBUTING.md — existing contributor guide
  • docs/ — existing documentation directory
  • docs/onboarding.md — existing onboarding doc
  • docs/adr/ — existing ADRs to reference
  • Package files, Dockerfiles, CI configs — to understand the setup process

Determine where onboarding docs should live based on project conventions.

Step 1: Read the Codebase Thoroughly

Understand the full picture:

  • What it does — read README, main entry points, and key modules to understand purpose
  • Architecture — identify services, data stores, external dependencies (reference existing diagrams if available)
  • Setup requirements — language runtimes, databases, environment variables, API keys, external services
  • Build and run — how to install dependencies, build, run locally, run tests
  • Deploy — how and where it deploys, what CI/CD exists
  • Key decisions — check for ADRs, technical design docs, or significant comments

Step 2: Write the Onboarding Document

Structure for a day-one engineer:

# [Project Name] — Getting Started

## What This Project Does

[2-3 sentences. No jargon. What problem does it solve and for whom?]

## Architecture Overview

[Brief description with diagram reference if available.
Link to detailed architecture docs if they exist.]

## Local Setup

### Prerequisites

- [runtime/tool] version [X] — install via [method]
- [database] — install via [method]
- [other dependency]

### Step-by-Step Setup

1. Clone the repo: `git clone ...`
2. Install dependencies: `[command]`
3. Set up environment: `cp .env.example .env` and fill in [what]
4. Set up database: `[command]`
5. Run the app: `[command]`
6. Verify it works: open [URL] or run [test command]

## Where Things Live

| Directory | What's There  |
| --------- | ------------- |
| `src/`    | [description] |
| `tests/`  | [description] |
| ...       | ...           |

## Key Technical Decisions

- [Decision] — [why, or link to ADR]
- [Decision] — [why, or link to ADR]

## How to Deploy

[Brief description of deploy process, or link to deploy docs]

## Common Tasks

- **Run tests:** `[command]`
- **Add a migration:** `[command]`
- **[other common task]:** `[command]`

## Who to Ask

- [Area] — [person/team or "see docs/[file]"]

Read the full file on GitHub · 141 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. 23d ago First seen · 141 lines · 64 tokens per session scan A cdab8fd0ff87

Subscribe to this mod's changes

atlas-onboard is a skill published in the GitHub repository tonone-ai/tonone (76 stars, last pushed 9d ago), licensed MIT. It adds 64 tokens to every session and 1,051 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-20.

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