environment-variables

environment-variables is a cursor rule for coding agents from diegomarino/awesomic-cursor-rules. It costs 0 tokens per session (769 once invoked), scanned A, original, MIT.

A set of rules for environment variables, which store configuration values outside the application code.

In plain words
What is it for?
Use it to organize .env files, define naming and commenting conventions, document required values, and provide safe example settings.
Why use it?
It separates development, test, and production settings while keeping secrets out of the code repository.

Cursor rule

Install

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.

agentmods
npx agentmods add rules/diegomarino/awesomic-cursor-rules/environment-variables
Clone the repo
git clone --depth 1 https://github.com/diegomarino/awesomic-cursor-rules

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 environment-variables

README.md
[![agentmods](https://agentmods.dev/badge/rules/diegomarino/awesomic-cursor-rules/environment-variables.svg)](https://agentmods.dev/rules/diegomarino/awesomic-cursor-rules/environment-variables)
Your own site
<a href="https://agentmods.dev/rules/diegomarino/awesomic-cursor-rules/environment-variables"><img src="https://agentmods.dev/badge/rules/diegomarino/awesomic-cursor-rules/environment-variables.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 769 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00769
Opus 5 $0.00000 $0.00385
Sonnet 5 $0.00000 $0.00154
Haiku 4.5 $0.00000 $0.00077

Measured 4d ago against content hash f07a0febfa47, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

environment-variables 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.

rules/environment-variables.mdc · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Environment Variables Standards

File Structure

  • Use descriptive section headers
  • Include detailed comments for each variable
  • Group related variables together
  • Follow consistent naming conventions (by default use SCREAMING_SNAKE_CASE if none specified)
  • Align comments vertically within each group for better readability

Required Environment Files

  • .env - Main development configuration (gitignored)
  • .env.example - Template with dummy values (committed)
  • .env.test - Test environment configuration (gitignored)
  • .env.production - Production settings (gitignored)

Optional but recommended:

  • .env.local - Local overrides, for developer-specific settings (gitignored)

Variable Categories

Environment Configuration

NODE_ENV:
  description: Application environment setting
  allowed_values: [development, production, test]
  required: true

DEBUG:
  description: Debug mode configuration
  allowed_values: [true, false, trace, debug, info, warn, error]
  default: false

Logging Configuration

LOG_ENABLED:
  description: Enable/disable application logging
  type: boolean
  required: true

LOG_LEVEL:
  description: Logging verbosity level
  allowed_values: [error, warn, info, debug, trace]
  default: info

LOG_FILE:
  description: Main log file name
  type: string
  required: true

LOG_PATHS:
  description: Logging path configuration
  type: object
  properties:
    LATEST: string  # Path for latest log file
    HISTORY: string # Path pattern for historical logs
  
LOG_ROTATION:
  description: Log rotation settings
  type: object
  properties:
    MAX_SIZE: string # Size threshold for rotation
    MAX_FILES: string # Retention period

Locale Settings

TIMEZONE:
  description: Application timezone
  type: string
  required: true
  example: UTC

LANGUAGE:
  description: Default application locale
  type: string
  pattern: [a-z]{2}-[A-Z]{2}
  required: true
  example: en-US

Directory Configuration

DIRECTORIES:
  description: Application directory structure
  type: object
  note: "Paths should be relative to project root"
  properties:
    OUTPUT: string    # Output directory
    TEMPLATES: string # Templates directory
    STATIC: string    # Static assets directory
    DATA: string      # Data files directory
    LOGS: string      # Logs directory

Read the full file on GitHub · 131 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 · 131 lines · 0 tokens per session scan A f07a0febfa47

Subscribe to this mod's changes

environment-variables is a cursor rule published in the GitHub repository diegomarino/awesomic-cursor-rules (10 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 769 tokens. 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 2026-08-31.