setup-devenv SKILL.md skillA

setup-devenv from urmzd/dotfiles is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add urmzd/dotfiles/setup-devenv@git:20260530.d3be4dd

Pins git:20260530.d3be4dd in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
urmzd/dotfiles
Path
dot_agents/skills/setup-devenv/SKILL.md
Versions recorded
4
Latest version
git:20260530.d3be4dd, committed May 30, 2026
First version recorded
Apr 8, 2026
Size
3,265 bytes
Repository stars
5
License
Apache-2.0

Per-language runtime version managers (fnm, uv, rustup) plus the vanilla-direnv .envrc pattern (layout python, use fnm, PATH_add, dotenv, source_up) for project dev environments. Use when bootstrapping a project's local toolchain, choosing a version manager, or writing a project .envrc. For chezmoi-managed pinned installer scripts and the tracked dot_envrc.project.example template, use setup-devenv-with-chezmoi.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Per-Language Dev Environments

## Philosophy

System-installed CLIs (git, gh, fzf, jq, kubectl, terraform, ...) come from Homebrew on macOS or apt/dnf/pacman on Linux. Per-language runtime versions come from the best-in-class tool for that language. No polyglot abstraction layer.

## Runtime version managers

| Language | Tool | Project pin | Notes |
|----------|------|-------------|-------|
| Node | [fnm](https://github.com/Schniz/fnm) | `.nvmrc` | `eval "$(fnm env --use-on-cd)"` in shell rc auto-switches |
| Python | [uv](https://docs.astral.sh/uv/) | `.python-version` + `pyproject.toml` | `uv venv` + `uv sync` |
| Rust | [rustup](https://rustup.rs) | `rust-toolchain.toml` | Auto-installs the pinned channel |
| Go | system `go` | `go.mod` go directive | One toolchain per machine usually fine |
| Lua | system `lua` | n/a | Pin via Brewfile/apt |

## .envrc patterns (vanilla direnv, no nix-direnv)

The standard direnv idioms cover most needs:

```bash
# Python: auto-create + activate .venv on cd
layout python

# Node with fnm: load .nvmrc-pinned version
use fnm

# Add project-local bin/ to PATH
PATH_add bin

# Load KEY=VALUE pairs from .env
dotenv
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add urmzd/dotfiles/setup-devenv@sha256:5eeea1d035a848ac

The line at the top of this page pins the label git:20260530.d3be4dd, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_btnritno6vgitjv4.svg)](https://markdownregistry.com/a/art_btnritno6vgitjv4)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Apr 8, 2026 and May 30, 2026, about one every 17 days.

versioncommittedcommitsizeaudit
git:20260530.d3be4dd latest2026-05-30 d3be4dd 3,265 BA view · diff
git:20260529.9238f592026-05-29 9238f59 3,017 BA view · diff
git:20260422.18125cf2026-04-22 18125cf 2,736 BA view · diff
git:20260408.a08708c2026-04-08 a08708c 1,788 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3265 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

urmzd/dotfiles · 5 stars · license Apache-2.0 · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_btnritno6vgitjv4
GET https://markdownregistry.com/api/v1/resolve?ref=urmzd/dotfiles/setup-devenv
GET https://markdownregistry.com/api/v1/blob/5eeea1d035a848acba3b5ad58b3e0ed9d07ecd5c75b86569aa21d3533b6f75eb

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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