repository-onboarding

repository-onboarding is a skill for Claude Code, Codex from naorpeled/awesome-oss-skills. It costs 41 tokens per session (389 once invoked), scanned A, original, MIT.

An orientation guide for contributors joining an open-source repository. It uses the project's README, contribution rules, templates, policies, and architecture documents to explain the project and its contribution process.

In plain words
What is it for?
Use it to learn how the project works, set it up, run its checks, prepare branches and pull requests, follow conduct and security rules, and find suitable starter work.
Why use it?
It reduces the time needed to understand an unfamiliar codebase and prevents contributors from missing project rules or required workflow steps.

Skill for Claude CodeCodex

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

Good fit Use it to learn how the project works, set it up, run its checks, prepare branches and pull requests, follow conduct and security rules, and find suitable starter work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/naorpeled/awesome-oss-skills/repository-onboarding
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 naorpeled/awesome-oss-skills --skill repository-onboarding
Clone the repo
git clone --depth 1 https://github.com/naorpeled/awesome-oss-skills

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 repository-onboarding

README.md
[![agentmods](https://agentmods.dev/badge/skills/naorpeled/awesome-oss-skills/repository-onboarding/github.svg)](https://agentmods.dev/skills/naorpeled/awesome-oss-skills/repository-onboarding)
Your own site
<a href="https://agentmods.dev/skills/naorpeled/awesome-oss-skills/repository-onboarding"><img src="https://agentmods.dev/badge/skills/naorpeled/awesome-oss-skills/repository-onboarding/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 repository-onboarding

Your own site · 80×15
<a href="https://agentmods.dev/skills/naorpeled/awesome-oss-skills/repository-onboarding"><img src="https://agentmods.dev/badge/skills/naorpeled/awesome-oss-skills/repository-onboarding.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 389 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 $0.00041 $0.00389
Opus 5 $0.00020 $0.00195
Sonnet 5 $0.00008 $0.00078
Haiku 4.5 $0.00004 $0.00039

Measured 12d ago against content hash 4543785ea0fb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

repository-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 12d 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.

skills/repository-onboarding/SKILL.md · 61 lines

What it actually says

Repository onboarding

Use this skill when a contributor needs a fast, reliable orientation to a repository before making changes.

Primary inputs

  • README.md
  • CONTRIBUTING.md
  • DEVELOPER.md, developer.md, or docs/development.md
  • CODE_OF_CONDUCT.md
  • SECURITY.md
  • issue templates and pull request templates
  • architecture or docs folders

Instructions

  1. Read the repository's high-signal docs first.
  2. Summarize:
    • what the project does
    • who it is for
    • how contributors are expected to work
  3. Extract the contributor workflow:
    • setup steps
    • build, test, and lint commands
    • branching or commit expectations
    • pull request expectations
  4. Identify project norms:
    • code of conduct or communication rules
    • security reporting instructions
    • labels or issue types that indicate where help is needed
  5. End with the smallest sensible next steps for the contributor.

Recommendations to apply

  • Prefer reading the room before suggesting changes.
  • Point new contributors to documentation and small starter work first.
  • Highlight non-code ways to contribute when the repository supports them.
  • If the repo uses labels such as good first issue or help wanted, call them out explicitly.

Output format

Return:

  • a short repository summary
  • a checklist of first setup steps
  • the most important repo norms
  • a list of suggested next tasks for a newcomer
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. 12d ago First seen · 61 lines · 41 tokens per session scan A 4543785ea0fb

Subscribe to this mod's changes

repository-onboarding is a skill published in the GitHub repository naorpeled/awesome-oss-skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 41 tokens to every session and 389 once invoked, about $0.0002 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.

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