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varlock-claude-skill skill

safe

This skill helps you securely manage environment variables in Claude sessions, preventing secrets exposure in terminals, logs, or git commits.

This is most likely a fork of the varlock-claude-skill skill from xfstudio

npx playbooks add skill sickn33/antigravity-awesome-skills --skill varlock-claude-skill

Review the files below or copy the command above to add this skill to your agents.

Files (1)

SKILL.md

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---
name: varlock-claude-skill
description: "Secure environment variable management ensuring secrets are never exposed in Claude sessions, terminals, logs, or git commits"
source: "https://github.com/wrsmith108/varlock-claude-skill"
risk: safe
---

# Varlock Claude Skill

## Overview

Secure environment variable management ensuring secrets are never exposed in Claude sessions, terminals, logs, or git commits

## When to Use This Skill

Use this skill when you need to work with secure environment variable management ensuring secrets are never exposed in claude sessions, terminals, logs, or git commits.

## Instructions

This skill provides guidance and patterns for secure environment variable management ensuring secrets are never exposed in claude sessions, terminals, logs, or git commits.

For more information, see the [source repository](https://github.com/wrsmith108/varlock-claude-skill).

Overview

This skill provides secure environment variable management for Claude-based workflows, ensuring secrets are never exposed in agent sessions, terminal output, logs, or git commits. It delivers patterns and runtime guards to detect, mask, and prevent accidental leakage of API keys, tokens, and other sensitive values. The design focuses on safe developer ergonomics and automated scanning to reduce human error.

How this skill works

The skill inspects environment variable usage across interactive Claude sessions, shell commands, and application runtime, looking for plain-text secrets and risky operations. It adds runtime wrappers and masking layers that replace or redact sensitive values before they reach terminals, logs, or outbound messages. It also integrates checks to flag potential git commits and history that contain secrets and recommends remediation steps.

When to use it

When running Claude sessions that may reference environment variables or keys
During development to prevent secrets appearing in terminal output or agent logs
Before committing code to git or pushing changes to remote repositories
When building CI/CD pipelines that inject environment variables into jobs
When auditing an application's secret handling and leak risk

Best practices

Never paste secret values directly into chat sessions or code; use masked references instead
Wrap environment access with the provided runtime guard to auto-redact values in outputs
Add pre-commit hooks or CI checks to detect and block commits containing secrets
Restrict long-lived credentials and rotate keys regularly to limit exposure impact
Log only metadata or boolean indicators about secret presence, not the secret itself

Example use cases

Running a Claude coding session where you need to test API integration without exposing keys
Adding a lightweight wrapper to local dev servers so logs never include raw env values
Scanning a feature branch for accidental secret commits before opening a pull request
Hardening CI jobs by replacing raw secrets with short-lived tokens and redaction
Training teammates on safe secret handling by demonstrating masked outputs in agent sessions

FAQ

Will this skill store my secrets?

No. The skill operates by masking and wrapping access to environment variables; it does not persist raw secret values.

Can it prevent all secret leaks automatically?

It reduces risk by blocking common leak vectors and automating redaction, but it complements—does not replace—secure practices like key rotation and least privilege.

Does it modify git history to remove secrets?

It flags and prevents commits with detected secrets; historical removal requires explicit git history rewriting and follow-up remediation steps.