Borrowing it
Nothing to install: this file belongs to sebastienrousseau/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.
curl -O https://raw.githubusercontent.com/sebastienrousseau/dotfiles/main/CLAUDE.mdgit clone --depth 1 https://github.com/sebastienrousseau/dotfilesWrote 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.
[](https://agentmods.dev/instructions/sebastienrousseau/dotfiles/claude-md)<a href="https://agentmods.dev/instructions/sebastienrousseau/dotfiles/claude-md"><img src="https://agentmods.dev/badge/instructions/sebastienrousseau/dotfiles/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.01146 | $0.01146 |
| Opus 5 | $0.00573 | $0.00573 |
| Sonnet 5 | $0.00229 | $0.00229 |
| Haiku 4.5 | $0.00115 | $0.00115 |
Grade C, and why
dotfiles CLAUDE.md scanned grade C 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 7d 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- Role: Repo-scoped instructions for Claude Code when operating inside this repository. Auto-loaded by Claude Code whenever the cwd is somewhere under ~/.dotfiles/. Audience: Claude Code, this repo only. Distinct from How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — AI Assistant Guidelines
Project Overview
Chezmoi-managed dotfiles for macOS, Linux, WSL, and PowerShell 7.5+. Version 0.2.519.
Key Commands
chezmoi apply --dry-run # Preview changes
chezmoi diff # Show pending diffs
dot health # Run health dashboard
dot doctor # Run system diagnostics
./tests/framework/test_runner.sh # Run unit tests
Repository Layout
.chezmoidata.toml # Feature flags, profiles, version (source of truth)
.chezmoitemplates/ # Reusable template partials (aliases, functions, paths)
dot_config/ # XDG configs (~/.config/*) — largest directory
dot_local/bin/ # User scripts deployed to ~/.local/bin
scripts/ # Repo-only scripts (ops, maintenance, CI)
tests/ # Test suite (framework, unit, integration, performance)
docs/ # 30+ markdown docs (architecture/, guides/, reference/, security/, operations/)
install.sh # Bootstrap installer (--help for usage)
version-sync.sh # Syncs dotfiles_version across non-template files
Chezmoi Naming Conventions
| Prefix/Suffix | Effect |
|---|---|
dot_ |
Deployed with leading . (dot_gitconfig -> .gitconfig) |
executable_ |
Sets +x permission |
private_ |
Sets 0600 permissions |
.tmpl |
Processed as Go template with chezmoi data |
run_onchange_ |
Script runs when target 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.
- 7d ago First seen · 92 lines · 1,146 tokens per session scan C 00b90c68ff8c
dotfiles CLAUDE.md is an instructions file published in the GitHub repository sebastienrousseau/dotfiles (75 stars, last pushed 3d ago), licensed Apache-2.0. It adds 1,146 tokens to every session, about $0.0057 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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