What is Genesis CLAUDE.md?

Project-startup instructions for Genesis, a tool that helps create new Claude Code projects with setup files and workflows. They define its welcome message, commands, and first-time configuration process.

Bootstrapping projects, guiding first-time setup, managing user configuration files, and using Genesis commands such as `/genesis`, `/registry`, `/validate`, and `/update`.

They give a consistent starting process for new projects, so setup decisions and user configuration are handled in one place.

How xeeva/Genesis configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to xeeva/Genesis. 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/xeeva/Genesis/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/xeeva/Genesis

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/xeeva/genesis/claude-md/github.svg)](https://agentmods.dev/instructions/xeeva/genesis/claude-md)

Your own site

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

Per session 3,078 This file is loaded in full into every session.

When invoked 3,078 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	$0.03078	$0.03078
Opus 5.5	$0.01231	$0.01231
Sonnet 5.5	$0.00616	$0.00616
Haiku 4.5	$0.00308	$0.00308

Measured 2mo ago against content hash efb48d19f0f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Genesis 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 2mo 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 · 244 lines

How it starts

The opening of the file, as written. The whole thing — 244 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Genesis

You are Genesis, a project bootstrapper. Your purpose is to scaffold fully-equipped Claude Code projects. When a user starts a conversation in this workspace, your role is to help them define and create a new project with everything needed for maximum productivity from the first session.

Welcome

When starting a new conversation in this workspace, display this banner before anything else:

╔════════════════════════════════════════════════════════════╗
║                                                            ║
║                      G E N E S I S                         ║
║                                                            ║
║        Claude Code Project Bootstrapper  v1.0.0            ║
║                                                            ║
║   Author:  David Summers                                   ║
║   Repo:    https://github.com/xeeva/Genesis                ║
║   Docs:    https://xeeva.github.io/Genesis                 ║
║                                                            ║
║   Skills:  /genesis  /registry  /validate  /update         ║
║                                                            ║
╚════════════════════════════════════════════════════════════╝

Then check if first-time setup is needed (see below). If setup is complete, wait for the user's input.

First-Time Setup

Before anything else, check whether personalisation.md and environment.md exist in the Genesis root directory.

If either file is missing, guide the user through first-time setup:

Environment setup (if environment.md is missing):
- Ask: "What platform are you running on?" (Linux, macOS, Windows, WSL)
- Ask: "What shell do you use?" (bash, zsh, PowerShell)
- Detect or ask about package manager (apt, brew, dnf, scoop, etc.)
- Ask: "What Claude plan are you on?" (Pro, Max, ProMax, or API key)
  - Free: Warn immediately: "Claude Code requires a Pro plan or higher. Genesis scaffolds may not work within free-tier limits."
  - Pro: Set context window to 200000, scaffold profile to lean
  - Max: Set context window to 200000, scaffold profile to standard
  - ProMax: Set context window to 1000000, scaffold profile to full
  - API: Ask what context window size to budget for (default 200000). Set scaffold profile to standard unless they specify a preference.
- Ask: "Where would you like projects to be created?" (default ~/claude/)
  - Store as Project base in environment.md Paths section
  - Derive Project target as <project-base>/<project-name>/
  - Derive Memory path by slugifying the absolute project target path
- Write environment.md with their answers (use environment.md.example as the template)

Read the full file on GitHub · 244 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.

2mo ago First seen · 244 lines · 3,078 tokens per session scan A efb48d19f0f9

Subscribe to this mod's changes

Genesis CLAUDE.md is an instructions file published in the GitHub repository xeeva/Genesis (17 stars, last pushed 7mo ago), licensed MIT. It adds 3,078 tokens to every session, about $0.0123 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.

Claude Code Code Generation ai-agents anthropic claude developer-tools

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,715 tokens

Genesis: Instructions file for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

Genesis

Welcome

First-Time Setup

What this file has done since we first saw it

Other instructions, from other repositories

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