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 skills add urmzd/dotfiles --skill setup-devenv-with-chezmoigit clone --depth 1 https://github.com/urmzd/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/skills/urmzd/dotfiles/setup-devenv-with-chezmoi)<a href="https://agentmods.dev/skills/urmzd/dotfiles/setup-devenv-with-chezmoi"><img src="https://agentmods.dev/badge/skills/urmzd/dotfiles/setup-devenv-with-chezmoi/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.
<a href="https://agentmods.dev/skills/urmzd/dotfiles/setup-devenv-with-chezmoi"><img src="https://agentmods.dev/badge/skills/urmzd/dotfiles/setup-devenv-with-chezmoi.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00112 | $0.00906 |
| Opus 5 | $0.00056 | $0.00453 |
| Sonnet 5 | $0.00022 | $0.00181 |
| Haiku 4.5 | $0.00011 | $0.00091 |
Grade A, and why
setup-devenv-with-chezmoi scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -fsSL "<download-url>" -o "${BIN_PATH}" How it starts
The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Dev Env with Chezmoi
Personal-portfolio extensions to setup-devenv. This skill assumes a chezmoi-managed home directory and stays focused on the chezmoi-specific plumbing the portable skill deliberately omits.
When to Use
- Adding a pinned-version installer for a tool that ships only via a vendor script (gcloud, aws-cli, Snowflake Cortex, etc.).
- Updating the canonical
dot_envrc.project.exampletemplate that new projects copy. - Standardizing how
~/.local/binis wired up across projects.
If you're not on chezmoi, use setup-devenv directly. Substitute Brewfile / Nix / your own dotfile manager.
Pinned Installer Pattern
~/.local/share/chezmoi/run_onchange_after_install-<tool>.sh.tmpl
Skeleton:
#!/usr/bin/env bash
set -euo pipefail
<TOOL>_VERSION="<pin>"
INSTALL_DIR="$HOME/.local/share/<tool>/${<TOOL>_VERSION}"
BIN_PATH="${INSTALL_DIR}/<tool>"
BIN_LINK="$HOME/.local/bin/<tool>"
# Guard must test the actual install path, not a bin/ subdir, or the script
# re-downloads on every `chezmoi apply`.
if [ -x "${BIN_PATH}" ]; then
exit 0
fi
mkdir -p "${INSTALL_DIR}"
curl -fsSL "<download-url>" -o "${BIN_PATH}"
chmod +x "${BIN_PATH}"
ln -sf "${BIN_PATH}" "${BIN_LINK}"
Conventions:
- Pin the version at the top in ALL_CAPS. Bumping is a one-line diff.
- Install to
~/.local/share/<tool>/<version>/. Versioned subdirs let you roll back without re-downloading. - Symlink into
~/.local/bin/<tool>. Keeps$PATHstable. - Mirror the structure of existing scripts like
run_onchange_after_install-cloud-clis.sh.tmplorrun_onchange_after_install-cortex.sh.tmpl. Consistency makes the directory scannable.
Project envrc Template
The canonical project envrc lives at:
~/.local/share/chezmoi/dot_envrc.project.example
When a new project needs .envrc, copy this file into the project root, strip the per-language idioms that don't apply, and direnv allow. The portable patterns the file demonstrates (layout python, use fnm, PATH_add bin, dotenv, source_up) are documented in setup-devenv; this skill owns the file itself.
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.
- 9d ago First seen · 93 lines · 112 tokens per session scan A cbbaf4a141b3
setup-devenv-with-chezmoi is a skill published in the GitHub repository urmzd/dotfiles (3 stars, last pushed 3d ago), licensed Apache-2.0. It adds 112 tokens to every session and 906 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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