What is cofounder-team CLAUDE.md?

Repository instructions that guide Claude Code when working in a specific code repository. They explain the repository layout, response style, Git process, and how its files are built.

Use them to guide code changes, keep replies concise, follow the required branch and commit process, and understand how to build the repository's Claude Code skills.

They give the coding agent clear project-specific rules, reducing inconsistent responses, incorrect Git workflows, and confusion about what the repository contains.

How betahope/cofounder-team configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to betahope/cofounder-team. 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/betahope/cofounder-team/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/betahope/cofounder-team

Made for: Claude Code.

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/instructions/betahope/cofounder-team/claude-md/github.svg)](https://agentmods.dev/instructions/betahope/cofounder-team/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/betahope/cofounder-team/claude-md"><img src="https://agentmods.dev/badge/instructions/betahope/cofounder-team/claude-md/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/instructions/betahope/cofounder-team/claude-md"><img src="https://agentmods.dev/badge/instructions/betahope/cofounder-team/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 4,007 This file is loaded in full into every session.

When invoked 4,007 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.04007	$0.04007
Opus 5.5	$0.01603	$0.01603
Sonnet 5.5	$0.00801	$0.00801
Haiku 4.5	$0.00401	$0.00401

Measured 28d ago against content hash 04e5ebff6867, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cofounder-team CLAUDE.md 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 28d 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.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Response style (critical)

Every response in every session must be as concise as possible. As clear as possible. In simple, plain English. This applies to Claude and to every invoked persona (Maya, Jack, Priya, Dan, or any other co-founder skill).

Generated artefacts (drafts, plans, copy) may run as long as the artefact genuinely needs. Conversation may not.

Git workflow

Work directly on main. All commits and pushes go to main — do not create feature branches, do not open PRs against a different base, do not push to any other branch. If a task seems to call for a branch, default to main unless the user explicitly says otherwise.

What this repo is

A bundle of portable Claude Code skills. There is no application, no test suite, no lint. Every "deliverable" is a SKILL.md (plus optional references/) that Claude Code loads at session start.

There is one small build step. The source SKILL.md files use a few templating directives, and build (plain bash, no dependencies) compiles them into two finished flavors under dist/. See "The build system" below. setup runs the build for you, so the day-to-day loop is still just "clone and run setup."

Repo layout

Each top-level directory containing a SKILL.md is a skill:

jack, maya, priya, dan, sam — the five co-founder personas (sales and growth, product, creative, fundraising, technology)
team — convenes the personas in one multi-voice reply for cross-domain questions and big decisions, and runs the five-minute welcome chat that captures the company basics
pitch-deck-coach, startup-application-coach — coaching skills
humanizer — called by the other skills before they return user-facing copy. Its pattern catalog is vendored from upstream, not written here (see "The vendored humanizer catalog" below)
cofounder-team-upgrade — runs the upgrade workflow

Read the full file on GitHub · 146 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.

28d ago Changed · +102 tokens per session 04e5ebff6867
2mo ago First seen · 146 lines · 3,905 tokens per session scan A c6819e242fd5

Subscribe to this mod's changes

cofounder-team CLAUDE.md is an instructions file published in the GitHub repository betahope/cofounder-team (42 stars, last pushed 11d ago), licensed MIT. It adds 4,007 tokens to every session, about $0.0160 per session on Opus 5.5. 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.

cofounder-team CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
cofounder-team CLAUDE.mdbetahope/cofounder-team	Instructions file	42	11d ago	MIT	A	4,007	Claude Code
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
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cofounder-team: Instructions file for Claude Code