developer-onboarding-doc

developer-onboarding-doc is a skill for Claude Code from cnfeat/top-pm-skills. It costs 81 tokens per session (2,870 once invoked), scanned A, original, MIT.

A writing guide for creating an onboarding document that helps a new engineer understand a service, codebase, or team and start contributing.

In plain words
What is it for?
It helps document a service overview, architecture, local setup, dependencies, testing, deployment, on-call work, and team contacts.
Why use it?
It organizes the information a newcomer needs instead of leaving them to search through scattered notes or outdated wiki pages.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the pm-engineering plugin — 37 skills shipped together

Good fit It helps document a service overview, architecture, local setup, dependencies, testing, deployment, on-call work, and team contacts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cnfeat/top-pm-skills/developer-onboarding-doc
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 cnfeat/top-pm-skills --skill developer-onboarding-doc
Clone the repo
git clone --depth 1 https://github.com/cnfeat/top-pm-skills

Made for: Claude Code.

Or install pm-engineering, the plugin that ships this one along with the rest of its 37 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 developer-onboarding-doc

README.md
[![agentmods](https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/developer-onboarding-doc/github.svg)](https://agentmods.dev/skills/cnfeat/top-pm-skills/developer-onboarding-doc)
Your own site
<a href="https://agentmods.dev/skills/cnfeat/top-pm-skills/developer-onboarding-doc"><img src="https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/developer-onboarding-doc/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 developer-onboarding-doc

Your own site · 80×15
<a href="https://agentmods.dev/skills/cnfeat/top-pm-skills/developer-onboarding-doc"><img src="https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/developer-onboarding-doc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,870 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00081 $0.02870
Opus 5 $0.00041 $0.01435
Sonnet 5 $0.00016 $0.00574
Haiku 4.5 $0.00008 $0.00287

Measured 6d ago against content hash 1e9104ce8b1d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

developer-onboarding-doc scanned grade A with 1 finding 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 6d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl http://localhost:[PORT]/health
参考skill/pm-claude-skills-main/pm-claude-skills-main/plugins/pm-engineering/skills/developer-onboarding-doc/SKILL.md · 341 lines

How it starts

The opening of the file, as written. The whole thing — 341 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Developer Onboarding Document Skill

Produce a complete developer onboarding document for a service or team — covering everything a new engineer needs to be productive within their first week.

A good onboarding doc is not a wiki dump. It answers the questions a new engineer actually has on day one, in the order they'll have them.

Required Inputs

Ask for these if not already provided:

  • Service name and what it does
  • Team responsible for it
  • Tech stack — language(s), framework(s), database(s), message queues, etc.
  • Key external dependencies — upstream services, third-party APIs
  • Deployment target — Kubernetes, ECS, Lambda, bare metal, etc.
  • Local dev setup — how to run locally (Docker Compose, local DB, etc.)
  • Testing approach — unit, integration, E2E; test commands
  • Deployment process — summary of how code gets to production
  • On-call setup — who's on-call, how alerts work
  • Contacts — tech lead, platform team, related service owners

Output Format


Developer Onboarding: [Service Name]

Team: [Team name] | Tech lead: [Name] Last updated: [Date] | Updated by: [Name]

If something in this doc is wrong or out of date, fix it now — it will affect every engineer who onboards after you.


What This Service Does

[3–5 sentences. What problem does this service solve? Who calls it, and who does it call? What would break if this service went down?]

Service type: [API / Background worker / Event consumer / Data pipeline / etc.] Consumers: [List internal services or external clients that depend on this service] Dependencies: [List upstream services, databases, and third-party APIs this service calls]

Architecture diagram: [Link or embed — even a rough ASCII diagram helps]

[Caller A] ──→ [This Service] ──→ [Database]
                      │
                      └──→ [Downstream Service]

Codebase Orientation

Repository: [Link] Main branch: [main / master] Language: [e.g. Go 1.22 / Node.js 20 / Python 3.12] Framework: [e.g. Express / FastAPI / Gin / Rails]

Read the full file on GitHub · 341 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. 6d ago First seen · 341 lines · 81 tokens per session scan A 1e9104ce8b1d

Subscribe to this mod's changes

developer-onboarding-doc is a skill published in the GitHub repository cnfeat/top-pm-skills (48 stars, last pushed 2mo ago), licensed MIT. It adds 81 tokens to every session and 2,870 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other skills, from other repositories

hr-onboarding

A new-hire onboarding plan as a single page — first week schedule, buddy + manager intro, learning track, equipment checklist, and "you're set when…" outcomes. Use when the brief mentions "onboarding", "new hire", "first week plan", or "入职".

nexu-io/open-design · 62 tokens

book-mirror

Take any book (EPUB/PDF), produce a personalized chapter-by-chapter analysis. Each chapter is preserved in detail (The Chapter) and mirrored back to the reader's actual life (The Mirror) using brain context. The mirror observes and resonates — a friend pointing out parallels, NOT a consultant rearranging the reader's…

garrytan/gbrain · 138 tokens

miniapp

Build a tiny interactive HTML playground only when someone asks to see, play with, or step through a mechanism.

yc-software/qm · 25 tokens

eli5

Explain research, papers, or technical ideas in plain English with minimal jargon, concrete analogies, and clear takeaways. Use when the user says "ELI5 this", asks for a simple explanation of a paper or research result, wants jargon removed, or asks what something technically dense actually means.

companion-inc/feynman · 63 tokens

deck-course-module

A course or workshop slide template with persistent learning goals, teaching pages, multiple-choice self-tests, and a wrap-up.

nexu-io/html-anything · 25 tokens

master-yinguang

A reference-based assistant for questions about Yinguang and Pure Land Buddhism, a Buddhist tradition focused on faith, ethical living, and practice connected with rebirth in the Pure Land. It can answer in Yinguang’s historical teaching style.

xr843/Master-skill · 274 tokens