Can I customize the architectural rules?

Yes, the patterns are defined in a shell script hook that can be modified to include or exclude specific file patterns relevant to your project's tech stack.

Which file types are monitored by the One-Way Door skill?

It monitors critical files including SQL/Prisma schemas, Terraform/Docker configs, Authentication rules, OpenAPI/GraphQL contracts, and CI/CD pipelines.

How does this skill prevent Claude from making irreversible mistakes?

It uses a PreToolUse hook to intercept 'Write' commands. If the file being modified matches a known high-stakes pattern, the skill blocks the action and requires Claude to discuss alternatives with the user first.

Will this skill slow down my regular frontend development?

No. The skill is designed to ignore 'two-way doors' like UI components, CSS, documentation, and utility functions, allowing you to iterate quickly on reversible changes.

What is a 'one-way door' decision in software development?

A one-way door is a technical choice that is difficult or expensive to reverse once implemented and live, such as changing a database schema, an auth model, or a public API contract.

One-Way Door Decision Guard

Name: One-Way Door Decision Guard
Author: jamditis

byjamditis

•

Deployment & DevOps

Safeguards your project by identifying irreversible architectural decisions and prompting trade-off discussions before implementation.

The One-Way Door skill is an architectural governance tool for Claude Code that distinguishes between easily reversible changes and high-stakes 'one-way door' decisions like database schemas, authentication boundaries, and infrastructure configurations. By intercepting file writes to critical system components, it prevents impulsive technical debt and forces a structured evaluation of alternatives and migration paths, ensuring that foundational choices are made with intent rather than by accident. It is particularly useful for senior developers and architects who want to maintain high standards of system design while leveraging AI-assisted coding.

Key Features

01Automated detection of irreversible architectural changes across 8+ critical categories.

02Forces the AI to present alternative approaches and migration paths for flagged decisions.

03Intelligently ignores 'two-way doors' like UI components and utility functions to maintain speed.

04Comprehensive monitoring of database schemas, API contracts, and security rules.

0567 GitHub stars

06Pre-commit hooks that block high-impact writes until trade-offs are discussed.

Use Cases

01Reviewing infrastructure-as-code changes to avoid vendor lock-in or scaling issues.

02Preventing accidental breaking changes in public API contracts or event schemas.

03Evaluating long-term consequences of new database migrations before deployment.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jamditis/claude-skills-journalism one-way-door

For use in Claude.ai and ChatGPT

Download Skill