Common Rule Patterns

Browse complete, copy-pasteable rule examples organized by category. Each rule page follows a consistent format: what the rule checks, examples of incorrect and correct code, the full .rules.ts implementation, and guidance on when to use it.

Dependency & Package Management

Rule	Description
no-unapproved-deps	Restrict production dependencies to an approved allowlist
version-catalog	Enforce centralized version management in monorepos with catalog: notation
monorepo-task-runner	Ban package.json scripts and require task runner config in every package

Import & API Restrictions

Rule	Description
no-banned-imports	Prevent usage of banned libraries with a data-driven pattern list
no-banned-api	Ban specific runtime APIs that cause cross-platform or reliability issues
wrapper-enforcement	Enforce use of a project wrapper instead of a raw platform API

File Structure & Organization

Rule	Description
kebab-case-filenames	Enforce consistent file naming conventions using regex validation
no-barrel-files	Detect and ban barrel files (re-export-only index.ts)
test-file-coverage	Verify that every source file has a corresponding test file
component-pairing	Enforce Connected/presentational component pairs with opt-out support

Code Quality & Output

Rule	Description
no-todo-comments	Flag TODO, FIXME, HACK, and XXX comments before merging
no-emoji-in-output	Ban emoji and raw ANSI codes in CLI output strings
max-file-length	Warn when source files exceed a configurable line count
page-component-constraints	Enforce size limits and ban data-fetching hooks in page components

Database Schema

Rule	Description
database-audit-fields	Ensure all tables include created_at and updated_at columns

Architecture Boundaries

Rule	Description
required-export-pattern	Verify files export a required function signature
openapi-routes	Ensure backend routes use OpenAPI-typed definitions
clean-architecture-layers	Enforce dependency direction in layered architectures

Let AI agents write rules for you

The editor plugins for Claude Code and Cursor include a Quality Manager skill that identifies recurring patterns in your codebase and proposes new rules to enforce them. Sign up for beta access.