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dotfiles: Instructions file for Claude Code

CLAUDE.md

dotfiles CLAUDE.md is an instructions file for Claude Code from nicknisi/dotfiles. It costs 285 tokens per session, scanned B, original, MIT.

Instructions for Nick Nisi’s dotfiles repository, which stores personal settings for tools such as the shell, Neovim, tmux, Ghostty, Git, and Claude Code.

In plain words
What is it for?
Use them when adding or changing dotfiles, applying the repository setup, or locating shell, editor, terminal, Git, and Claude Code settings.
Why use it?
They explain where configuration files belong and how the repository links them into the home directory. This reduces mistakes when setting up or changing the machine’s development environment.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions Claude Code.

This is nicknisi/dotfiles's own configuration. It tells Claude Code how to work on dotfiles 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 dotfiles configures →

not rated 3.0krepo +1 changed 2mo ago B scan 285 tokens original MIT
View source ↗ nicknisi/dotfiles
About the project

nicknisi/dotfiles is a personal collection of configuration files and setup scripts for tools such as Neovim, zsh, Git, tmux, and Homebrew. It helps its author bootstrap and maintain a development machine, with a devcontainer for checking portable terminal settings. The catalogue entries extend the repository’s setup and coding-agent workflow.

nicknisi/dotfiles · 3,004 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to nicknisi/dotfiles. 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/nicknisi/dotfiles/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/nicknisi/dotfiles

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.

agentmods badge for dotfiles CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/nicknisi/dotfiles/claude-md/github.svg)](https://agentmods.dev/instructions/nicknisi/dotfiles/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/nicknisi/dotfiles/claude-md"><img src="https://agentmods.dev/badge/instructions/nicknisi/dotfiles/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.

agentmods 80×15 button for dotfiles CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/nicknisi/dotfiles/claude-md"><img src="https://agentmods.dev/badge/instructions/nicknisi/dotfiles/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 285 This file is loaded in full into every session.
When invoked 285 The same file — it is already loaded in full.
Security scan B 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00285 $0.00285
Opus 5.5 $0.00114 $0.00114
Sonnet 5.5 $0.00057 $0.00057
Haiku 4.5 $0.00028 $0.00028

Measured 2mo ago against content hash 4457b04b996f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

dotfiles CLAUDE.md scanned grade B with 1 finding 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- Claude Code settings live in `home/.claude/settings.json` → `~/.claude/settings.json`
CLAUDE.md · 27 lines

What it actually says

Dotfiles

Nick Nisi's dotfiles repo. Manages configs for zsh, neovim, tmux, ghostty, git, and Claude Code.

Structure

  • home/ — Files symlinked to ~/ (dotfiles like .zshenv, .claude/)
  • config/ — App configs symlinked into ~/.config/ (nvim, tmux, zsh, git, etc.)
  • bin/ — Scripts added to $PATH (claude-statusline, git helpers, etc.)
  • tools/ — Tooling and helpers

Setup

mise bootstrap --yes --skip-dirty                 # Converge the machine
mise bootstrap dotfiles apply                     # Link all packages
mise bootstrap dotfiles apply ~/.config/nvim      # Link one package
mise bootstrap dotfiles unapply                   # Remove links

Key conventions

  • config/ dirs map 1:1 to ~/.config/<name>/
  • home/ entries are symlinked directly to ~/
  • Claude Code settings live in home/.claude/settings.json → ~/.claude/settings.json
  • Shell entry point: home/.zshenv → ~/.zshenv, loads config/zsh/.zshrc
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. 2mo ago Changed · +4 tokens per session 4457b04b996f
  2. 2mo ago First seen · 27 lines · 281 tokens per session scan B aaeebf7cae6a

Subscribe to this mod's changes

dotfiles CLAUDE.md is an instructions file published in the GitHub repository nicknisi/dotfiles (3,004 stars, last pushed 2d ago), licensed MIT. It adds 285 tokens to every session, about $0.0011 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Git and workflowhomebrewneovimtmuxvimzsh
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