ccc-onboard

ccc-onboard is a skill for Claude Code, Codex from KevinZai/commander. It costs 32 tokens per session (1,933 once invoked), scanned A, original, MIT.

A guided onboarding workflow for someone joining a code repository. A repository is the project’s shared codebase, including its instructions, scripts, and files.

In plain words
What is it for?
Use it to inspect project instructions, package scripts, the technology stack, and workspace structure. It can prepare role-specific starter links, checklists, and first contribution steps.
Why use it?
It replaces a generic introduction with a first-hour guide based on the repository’s own rules and tools. It also helps choose a role and a suitable first task.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/kevinzai/commander/ccc-onboard
Any agent
npx skills add KevinZai/commander --skill ccc-onboard
Clone the repo
git clone --depth 1 https://github.com/KevinZai/commander

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 ccc-onboard

README.md
[![agentmods](https://agentmods.dev/badge/skills/kevinzai/commander/ccc-onboard.svg)](https://agentmods.dev/skills/kevinzai/commander/ccc-onboard)
Your own site
<a href="https://agentmods.dev/skills/kevinzai/commander/ccc-onboard"><img src="https://agentmods.dev/badge/skills/kevinzai/commander/ccc-onboard.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,933 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00032 $0.01933
Opus 5 $0.00016 $0.00966
Sonnet 5 $0.00006 $0.00387
Haiku 4.5 $0.00003 $0.00193

Measured 5d ago against content hash d9a830a2cbf0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

ccc-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 5d 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.

commander/cowork-plugin-codex/skills/ccc-onboard/SKILL.md · 223 lines

How it starts

The opening of the file, as written. The whole thing — 223 lines — stays where its author put it; the contents beside it link to each section on GitHub.

$ccc-onboard — New Contributor Onboarding

CC Commander · $ccc-onboard · Role → first task → first hour

Use this when a contributor is new to the repository and needs a practical first hour, not a generic tour. Build the guide from the repo’s own instructions and scripts.

Response Shape

Always return these sections:

  1. Brand header:
**CC Commander** · $ccc-onboard · Contributor first hour
  1. Repo context:

Read only the files that exist:

  • CLAUDE.md for local conventions, required tools, test commands, and workflow rules
  • BIBLE.md for product architecture, domain language, and non-negotiable project rules
  • package.json for scripts, package manager clues, and workspace structure
  • README.md only if the first three do not provide enough starter links

Summarize:

Repo: <name> · package manager: <npm|bun|pnpm|yarn|unknown> · scripts: <top useful scripts> · primary stack: <detected stack>
  1. Role picker — AskUserQuestion

Never show more than four options in one picker. The first picker covers the three most common code roles plus a "More roles" option; the second picker covers docs and first-PR onboarding.

question: "What kind of contributor are you onboarding?"
header: "CC Commander Onboard"
multiSelect: false
autocomplete: true
options:
  - label: "Frontend"
    value: "frontend"
    description: "UI, components, client flows, accessibility, and visual polish."
    preview: "First task focuses on finding a small UI improvement and validating it locally."
  - label: "Backend"
    value: "backend"
    description: "APIs, services, persistence, auth, jobs, and platform integrations."
    preview: "First task focuses on one safe server-side fix with tests."
  - label: "Full-stack"
    value: "full-stack"
    description: "End-to-end product change crossing UI and backend."
    preview: "First task traces one user flow from UI to data boundary."
  - label: "More roles"
    value: "more-roles"
    description: "Docs or smallest safe first PR."
    preview: "Opens a second picker for non-code or first-contribution paths."

Read the full file on GitHub · 223 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. 5d ago First seen · 223 lines · 32 tokens per session scan A d9a830a2cbf0

Subscribe to this mod's changes

ccc-onboard is a skill published in the GitHub repository KevinZai/commander (6 stars, last pushed yesterday), licensed MIT. It adds 32 tokens to every session and 1,933 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.