rez-next: Skill for Claude Code

.agents/skills/vx-project/SKILL.md

vx-project is a skill for Claude Code, Codex from loonghao/rez-next. It costs 31 tokens per session (1,505 once invoked), scanned A, original, Apache-2.0.

A project guide for vx, a tool that manages development-tool versions and project scripts from a vx.toml file. It can also describe how vx detects common languages, frameworks, and package managers.

In plain words
What is it for?
Use it to initialize vx.toml, configure tools, install project dependencies, inspect the detected project type, and enter the development environment.
Why use it?
It gives a project a shared tool setup so contributors can install and use the expected versions after cloning the repository.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is loonghao/rez-next's own configuration. It tells Claude Code and Codex how to work on rez-next 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 rez-next configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is dev = "go run ./cmd/server".

Reuse

Borrowing it

Nothing to install: this file belongs to loonghao/rez-next. 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/loonghao/rez-next/main/.agents/skills/vx-project/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/loonghao/rez-next

Made for: Claude Code, Codex.

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 vx-project

README.md
[![agentmods](https://agentmods.dev/badge/skills/loonghao/rez-next/vx-project.svg)](https://agentmods.dev/skills/loonghao/rez-next/vx-project)
Your own site
<a href="https://agentmods.dev/skills/loonghao/rez-next/vx-project"><img src="https://agentmods.dev/badge/skills/loonghao/rez-next/vx-project.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,505 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00031 $0.01505
Opus 5 $0.00015 $0.00753
Sonnet 5 $0.00006 $0.00301
Haiku 4.5 $0.00003 $0.00151

Measured 4d ago against content hash eff4cb1583e6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

vx-project scanned grade A with 0 findings 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 4d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.agents/skills/vx-project/SKILL.md · 284 lines

How it starts

The opening of the file, as written. The whole thing — 284 lines — stays where its author put it; the contents beside it link to each section on GitHub.

VX Project Management Guide

Quick start: Run vx init to create vx.toml, vx setup to install all tools, vx dev to enter the dev environment. For existing projects, just run vx setup after cloning.

Project Setup

Initialize a Project

vx init                     # Create vx.toml interactively
vx init --template node     # Use a template
vx init --minimal           # Create minimal vx.toml

Project Detection

vx automatically detects project types and suggests tools:

vx analyze                  # Analyze project (detects languages, dependencies)
vx analyze --json           # JSON output for AI parsing

Detected ecosystems: Node.js, Python, Rust, Go, Java, .NET, C/C++, Zig Detected frameworks: React, Vue, Angular, Next.js, Nuxt, Svelte, Django, Flask, FastAPI, Tauri, Electron, React Native, NW.js, and more Detected package managers: npm, yarn, pnpm, bun, pip, uv, cargo, go modules

The project analyzer reads indicator files like package.json, pyproject.toml, Cargo.toml, go.mod, etc. to suggest the right tools.

vx.toml Configuration

Basic Structure

# vx.toml - Project tool configuration

[tools]
# Version constraints
node = "22"                 # Major version (any 22.x.x)
go = "1.22"                 # Minor version (any 1.22.x)
uv = "latest"               # Always use latest
rust = "1.80"               # Specific version
just = "*"                  # Any version

# Platform-specific tools
[tools.msvc]
version = "14.42"
os = ["windows"]            # Only install on Windows

[tools.brew]
version = "latest"
os = ["macos", "linux"]

[scripts]
# Development scripts
dev = "npm run dev"
test = "cargo test"
lint = "npm run lint && cargo clippy"
build = "just build"

# CI/CD scripts
ci = "just ci"
release = "just release"

[hooks]
# Lifecycle hooks
pre_commit = ["vx run lint"]
post_setup = ["npm install", "cargo fetch"]

Version Constraints

Constraint Example Meaning
Exact "1.2.3" Only version 1.2.3
Major "1" Any 1.x.x
Minor "1.2" Any 1.2.x
Latest "latest" Always latest
Any "*" Any available version
Range ">=1.0.0 <2.0.0" Range constraint

Read the full file on GitHub · 284 lines

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. 4d ago First seen · 284 lines · 31 tokens per session scan A eff4cb1583e6

Subscribe to this mod's changes

vx-project is a skill published in the GitHub repository loonghao/rez-next (25 stars, last pushed 3d ago), licensed Apache-2.0. It adds 31 tokens to every session and 1,505 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-02.

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