Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/treyhunner/dotfiles/agents-mdgit clone --depth 1 https://github.com/treyhunner/dotfilesWhat 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 | $0.00835 | $0.00835 |
| Opus 5 | $0.00417 | $0.00417 |
| Sonnet 5 | $0.00167 | $0.00167 |
| Haiku 4.5 | $0.00084 | $0.00084 |
Grade B, and why
dotfiles AGENTS.md scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- Assumes Ubuntu with sudo access How it starts
The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
For AI coding agents working in this dotfiles repository.
Context
- Personal dotfiles for Ubuntu development environment (zsh, Neovim, tmux, Python tooling)
- Uses symlinks from
~/.dotfiles/to$HOMEfor all configs - Assumes Ubuntu with sudo access
Key Paths
- Shell:
zshrc,profile,zprofile- zsh primary shell - Editor:
config/nvim/init.vim- Neovim config with vim-plug, ALE linting - Tmux:
tmux.conf- Uses C-a prefix (not C-b), TPM plugins - Git:
gitconfig,gitignore - Python:
startup.py- PYTHONSTARTUP file for interactive sessions - Scripts:
bin/- Custom utilities (comma-prefixed for personal tools)
Automation
./scripts/install- Creates symlinks from this repo to$HOME./scripts/additional_install- Installs system packages and CLI tools (uv, direnv, starship, just, fnm, hub, pyenv, docker, etc.)bin/scripts use#!/usr/bin/env -S uv run --quiet --scriptwith PEP 723 inline dependencies- Key tools: uv (Python pkg mgr), direnv (env activation), starship (prompt), just (command runner), fnm (Node mgr)
Python Workflow
- Create venv:
venv [name]- Uses uv, creates.envrc, registers in~/.projects - Switch project:
workon <project>- cd to directory from~/.projectsmapping - Auto-activation: direnv triggers on cd to directories with
.envrc - Version mgmt: pyenv controls Python versions, default in
pyenv/version - Virtual envs: Located in project dirs (not centralized), activated via direnv
- See
zshrc:61-145forvenvandworkonfunction implementations
Editor & Tmux
Neovim (config/nvim/init.vim):
- Leader: SPACE, Local leader: \
- Save: ENTER, Clear search: SPACE-SPACE
- Toggle teaching mode: Shift-H (disables linting, spellcheck, status line)
- Plugins: ALE (ruff/flake8/black), CtrlP (fuzzy find with ag), vim-fugitive, vim-gitgutter, vim-surround
- Python host:
~/.virtualenvs/neovim/bin/python
Tmux (tmux.conf):
- Prefix: C-a (not default C-b)
- Session mgmt:
tmuxstartcommand for creating/attaching sessions - Window/pane indexing starts at 1
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.
- yesterday First seen · 69 lines · 835 tokens per session scan B d5d646e65b76
dotfiles AGENTS.md is an instructions file published in the GitHub repository treyhunner/dotfiles (51 stars, last pushed 5mo ago), licensed CC0-1.0. It adds 835 tokens to every session, about $0.0042 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
Other instructions, from other repositories
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
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).
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.