Why use Keychain Secure instead of .env files?

.env files are stored in plain text and can be accidentally committed to version control; Keychain Secure uses hardware-backed encryption and system ACLs to prevent unauthorized access.

What are GF(3) balanced operations?

It is a mathematical framework where every credential 'Store' (+1) is balanced by 'Retrieval' (0) and 'Validation/Deletion' (-1) to ensure a complete and secure lifecycle without leaks.

Can I restrict which apps access my credentials?

Yes, Keychain Secure supports setting Access Control Lists (ACLs) to restrict credential access to specific binary paths or require manual user confirmation.

Does this work on Windows or Linux?

This specific skill is optimized for macOS, as it leverages the native macOS Keychain 'security' utility for hardware-level protection.

How does this integrate with Claude Code?

It allows Claude to safely handle sensitive keys during automated development tasks without ever exposing them in logs, process lists, or environment variables.

Keychain Secure

Name: Keychain Secure
Author: plurigrid

byplurigrid

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安全与测试

Manages sensitive credentials using the hardware-backed macOS Keychain with mathematically balanced GF(3) operations.

Keychain Secure is a specialized security skill for Claude Code that replaces insecure environment variables and plain-text .env files with robust macOS Keychain storage. By implementing a GF(3) balanced lifecycle—Store (+1), Retrieve (0), and Validate/Delete (-1)—it ensures that secrets are handled with mathematical rigor and cryptographic safety. It provides a standardized interface for Python and Ruby applications to interact with system-level security, offering features like access control lists (ACLs) and MDM integration to maintain a zero-leak security posture throughout the development process.

主要功能

01Cross-language support for Python and Ruby API integration

02Automatic avoidance of insecure environment variables and .env files

03GF(3) balanced lifecycle management (Store, Retrieve, Validate)

048 GitHub stars

05Granular Access Control Lists (ACLs) for application-specific security

06Hardware-backed credential encryption via native macOS Keychain

使用场景

01Managing MDM push certificates and SCEP challenge passwords in local development environments

02Automating credential rotation cycles to ensure no stale secrets remain in the system

03Securely storing and retrieving API keys for LLM providers without exposing them in shell history

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add plurigrid/asi keychain-secure

For use in Claude.ai and ChatGPT

Download Skill