What severity levels can I assign to patterns?

Patterns can be categorized as Critical (security/data loss), High (performance/maintenance), Medium (code smell), or Low (style preference).

How do I use the command in Claude Code?

You can invoke it using the /bad-pattern command followed by a description of the issue and the correct approach, for example: '/bad-pattern inline SQL - use parameterized queries'.

Where does this skill store the documented patterns?

The skill automatically creates and updates a central repository file located at patterns/bad/anti-patterns.md within your project.

What is the purpose of the bad-pattern skill?

It provides a structured way to document coding practices that should be avoided, along with the correct alternatives, to ensure consistency and quality across a project.

Blueprint Anti-Pattern Manager

Name: Blueprint Anti-Pattern Manager
Author: rickardp

byrickardp

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Learning & Documentation

Standardizes the documentation of code anti-patterns and their recommended alternatives to enforce project-specific best practices.

The bad-pattern skill is a core component of the blueprint-mode suite designed for spec-driven development. It allows developers to quickly capture and catalog 'code smells,' security risks, or inefficient patterns as they are discovered. By providing a structured template that includes severity levels, problematic code examples, and 'Do This Instead' corrections, it transforms tribal knowledge into a living documentation repository. This is particularly useful for teams looking to reduce technical debt and maintain high architectural standards across a shared codebase.

Key Features

01Side-by-side comparisons of discouraged vs. recommended code

02Centralized management via a dedicated anti-patterns markdown file

031 GitHub stars

04Severity-based classification from Low to Critical issues

05Automated template generation for documenting bad code patterns

06Integration with spec-driven development workflows

Use Cases

01Codifying security rules to prevent common vulnerabilities like inline SQL

02Documenting deprecated legacy patterns during architectural migrations

03Onboarding new developers with a guide on project-specific 'don'ts'

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add rickardp/blueprint-mode bad-pattern

For use in Claude.ai and ChatGPT

Download Skill