mainbranch: Skill for Claude Code

.claude/skills/mb-help/SKILL.md

mb-help is a skill for Claude Code from noontide-co/mainbranch. It costs 47 tokens per session (3,765 once invoked), scanned A, original, MIT.

A help workflow for answering questions about Main Branch and Claude Code, including setup, business folders, commands, skills, errors, and next steps. Claude Code is a tool for working with a repository through conversation and commands.

In plain words
What is it for?
Use it when you are confused about the system, need setup or workflow help, are troubleshooting an error, or want to know what to do next.
Why use it?
It turns repository facts and relevant guidance into an explanation or troubleshooting path instead of relying on generic advice.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions subagents; mentions Claude Code.

This is noontide-co/mainbranch's own configuration. It tells Claude Code how to work on mainbranch itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mainbranch configures →

Part of the mainbranch plugin — 21 skills shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to noontide-co/mainbranch. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/noontide-co/mainbranch/main/.claude/skills/mb-help/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/noontide-co/mainbranch

Made for: Claude Code.

Or install mainbranch, the plugin that ships this one along with the rest of its 21 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 mb-help

README.md
[![agentmods](https://agentmods.dev/badge/skills/noontide-co/mainbranch/mb-help/github.svg)](https://agentmods.dev/skills/noontide-co/mainbranch/mb-help)
Your own site
<a href="https://agentmods.dev/skills/noontide-co/mainbranch/mb-help"><img src="https://agentmods.dev/badge/skills/noontide-co/mainbranch/mb-help/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 mb-help

Your own site · 80×15
<a href="https://agentmods.dev/skills/noontide-co/mainbranch/mb-help"><img src="https://agentmods.dev/badge/skills/noontide-co/mainbranch/mb-help.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,765 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00047 $0.03765
Opus 5 $0.00023 $0.01883
Sonnet 5 $0.00009 $0.00753
Haiku 4.5 $0.00005 $0.00377

Measured 8d ago against content hash 364f38fcc11f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

mb-help 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 8d 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.

.claude/skills/mb-help/SKILL.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Help

Answer questions, troubleshoot issues, explain philosophy, suggest next steps.

CLI facts first: For "what should I do?", setup, provider, skill wiring, or troubleshooting questions, run mb status --json --peek and use mb doctor for repair facts before giving prose-only advice.


Workflow

  1. Triage — Parse user's question/brain-dump
  2. Detect business type — Check current business files (Skool? Ecommerce?). If CWD looks like an old Main Branch repo, treat it as migration input and run mb status --json --peek and/or mb doctor repair --plan before relying on it.
  3. Load reference — Find topic in references/ table below
  4. Answer — Explain "why" not just "what"
  5. Route — End with next skill or action

Topic Router

Keywords Reference
Terminal, drag files, cd, business folder vs site folder terminal-basics.md
Business folder, CLI, skills, linked site folder, system model system-model.md
Philosophy, why, compound, passive memory philosophy.md
/mb-think, research, decide, codify the-think-cycle.md
/mb-bet, bet, hypothesis, deadline, public narration, bet vs offer skills-guide.md
Work continuity, where left off, GitHub issues work-continuity.md
Error, command not found, MCP, Apify setup, GitHub issue troubleshooting.md
Provider readiness, GitHub setup, Cloudflare, Google Workspace, Meta Ads, Apify provider-readiness.md
Getting started, setup Route to /mb-setup or /mb-start
Which skill, when to use, list skills, what skills do I have, skills inventory, what can you do, which skills are we using skills-guide.md
Pre-publish review, UI pass, design pass, design critique, review the page before publish Route to /mb-skill-review (see skills-guide.md)
Create skill, Notion export, custom skills-guide.md
Migrate from GPT, ChatGPT gpt-migration.md
Reels, TikTok, organic, /mb-organic organic-help.md
Skool, community skool-help.md
Wiki, atomic notes, publish, WikiLinks Route to /mb-wiki
Launch readiness, Cloudflare, Wrangler, Shopify, Resend, smoke test, form test, booking link Route to /mb-site; run mb launch check before launch-readiness advice
Site, landing page, lander, minisite, website, about page video, deploy site, publish site, conversion endpoint, concept variations Route to /mb-site (see skills-guide.md for the full one-flow walkthrough)
Done, wrapping up, closing, end session, end of day Route to /mb-end
multi-offer, product ladder, offers, switch offer Multi-Offer FAQ (below)
Better outputs, quality, what next making-outputs-better.md
Content strategy, pillars, platforms, newsletter, channel strategy, account strategy, founder voice, weekly content plan content-strategy-help.md
Subagents, parallel, agents, context window, tokens working-with-agents.md
workspace-isolated tools, sandboxed workspace, skills not showing workspace-setup.md
Contribute, contributor becoming-contributor.md

Read the full file on GitHub · 115 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. 8d ago First seen · 115 lines · 47 tokens per session scan A 364f38fcc11f

Subscribe to this mod's changes

mb-help is a skill published in the GitHub repository noontide-co/mainbranch (39 stars, last pushed 25d ago), licensed MIT. It adds 47 tokens to every session and 3,765 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 2026-08-30.

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