A workflow for researching a question, making a decision, and recording the result in reference files. It is also meant for turning vague ideas or source material into clearer business knowledge.

Exploring questions, sharpening an offer, adding context, analyzing material, documenting decisions, updating reference files, and preparing a saved checkpoint.

It helps keep research and decisions from remaining only in conversation. It also provides a way to revisit, improve, or retire outdated information.

How noontide-co/mainbranch configures Claude Code

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-think/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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/noontide-co/mainbranch/mb-think/github.svg)](https://agentmods.dev/skills/noontide-co/mainbranch/mb-think)

Your own site

<a href="https://agentmods.dev/skills/noontide-co/mainbranch/mb-think"><img src="https://agentmods.dev/badge/skills/noontide-co/mainbranch/mb-think/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/noontide-co/mainbranch/mb-think"><img src="https://agentmods.dev/badge/skills/noontide-co/mainbranch/mb-think.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 141 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 5,567 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.

Model	Per session	Once invoked
Fable 5.1	$0.00141	$0.05567
Opus 5	$0.00071	$0.02783
Sonnet 5	$0.00028	$0.01113
Haiku 4.5	$0.00014	$0.00557

Measured 9d ago against content hash a0d8a15e0484, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

mb-think 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/detect-tools.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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-think/SKILL.md · 497 lines

How it starts

The opening of the file, as written. The whole thing — 497 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Think

Research, decide, and codify knowledge into reference files.

Don't Overthink Think

This skill is for: "I don't know what happens next. I just need to start."

Something came your way — a video, a voice memo, a vague feeling, a problem to solve. You don't need a plan. Just start. The skill finds the overlap between your interest and your offer.

Re-invoke often. Saying /mb-think again is normal. It reloads context. Do it after:

Reading a large transcript (burns tokens)
Compaction (context window reset)
Switching focus
Anytime you feel lost

Save progress at natural boundaries. After a research batch, accepted decision, codify pass, or major reference-file update, ask whether to checkpoint. Run mb checkpoint --plan --json, show the proposed message, validate with mb checkpoint --validate "..." --json, then save with mb checkpoint --message "..." --yes only after approval; no hidden checkpoints.

Shared source: The portable thinking workflow contract lives in workflows/mb-think/workflow.md. This Claude skill is the Claude Code shell over that source.

Shared contract markers: Keep these aligned with the shared source.

Required commands:

mb status --json --peek
mb start --json
mb doctor repair --plan
mb connect doctor --json
mb checkpoint --plan --json

Required fact paths:

money_path
money_path.objects.offer
money_path.objects.proof
money_path.objects.proof.quality
money_path.objects.product_ladder
money_path.objects.cta_path
money_path.objects.channel_strategy
money_path.objects.active_push
money_path.objects.outcome_feedback_loop
money_path.ranked_actions
validation.file_contracts
content_strategy
ranked_actions
update
readiness
drift.items
books
runtime.codex_cli
runtime.claude_code

Approval gates: updates_repairs_migrations, file_writes, checkpoint, provider_mutation, publishing_or_spend, customer_contact, private_data, destructive_operations, structured_collection, and public_issue_or_proposal.

Read the full file on GitHub · 497 lines

Files

What ships with it

26 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

9d ago First seen · 497 lines · 141 tokens per session scan A a0d8a15e0484

Subscribe to this mod's changes

mb-think is a skill published in the GitHub repository noontide-co/mainbranch (39 stars, last pushed 25d ago), licensed MIT. It adds 141 tokens to every session and 5,567 once invoked, about $0.0007 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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mainbranch: Skill for Claude Code