env-validator SKILL.md skillA

env-validator from mathews-tom/armory is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add mathews-tom/armory/env-validator@v1.0.1

Pins v1.0.1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
mathews-tom/armory
Path
skills/env-validator/SKILL.md
Versions recorded
4
Latest version
v1.0.1, committed Apr 11, 2026
First version recorded
Apr 6, 2026
Size
5,485 bytes
Repository stars
334
License
MIT

Validates .env files against code references and manifests for missing vars, type mismatches, insecure defaults, and unused entries. Triggers on: "validate env file", "check environment variables", "missing env vars", "check .env", "dotenv validation". NOT for secret scanning, use repo-sentinel.

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

# Env Validator

Validates environment variable configurations by cross-referencing `.env` files against
project requirements. Catches missing variables, type errors, insecure defaults, and
orphaned entries before they cause runtime failures.

## Reference Files

| File                                 | Contents                                          | Load When              |
| ------------------------------------ | ------------------------------------------------- | ---------------------- |
| `references/validation-rules.md`     | Built-in validation rules and severity definitions | Always                |

## Prerequisites

- A `.env` file (or equivalent) in the project
- Optionally: `.env.example`, `docker-compose.yml`, or deployment manifests for cross-referencing

## Workflow

### Phase 1: Discovery

Locate environment configuration sources in the project:

1. **Primary file:** Find `.env` in the project root. If absent, check for `.env.local`, `.env.development`, `.env.production`
2. **Schema file:** Find `.env.example` or `.env.template` — this defines the expected variables
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add mathews-tom/armory/env-validator@sha256:9c9a0cd83590470b

The line at the top of this page pins the label v1.0.1, 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_xd3uuhzlz62y6sx6.svg)](https://markdownregistry.com/a/art_xd3uuhzlz62y6sx6)

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

Versions

The registry has recorded 4 versions of this file, between Apr 6, 2026 and Apr 11, 2026, about one every 2 days. Its first recorded version is graded B and its latest A.

versioncommittedcommitsizeaudit
v1.0.1 latest2026-04-11 0aa221a 5,485 BA view · diff
v1.0.12026-04-09 1cc63e5 6,059 BB view · diff
v1.0.12026-04-07 b03849d 6,044 BB view · diff
v1.0.02026-04-06 64c265a 6,044 BB 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 (5485 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

mathews-tom/armory · 334 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xd3uuhzlz62y6sx6
GET https://markdownregistry.com/api/v1/resolve?ref=mathews-tom/armory/env-validator
GET https://markdownregistry.com/api/v1/blob/9c9a0cd83590470b7b8b8fc6d6c404ad2a3bec1608d19ad77660b62b508f2406

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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