Rule Packs

edikt's rule packs are guardrails against specific mistakes Claude makes — not a collection of best-practice opinions. Each pack targets a category of error: hallucinated APIs, placeholder code, race conditions, tautological tests, timing attacks. Architecture opinions belong in ADRs (or verikt, if you use it). Rule packs are about correctness.

Each rule is a single .md file installed to .claude/rules/ with paths: frontmatter so it only activates on relevant files. All packs are at version 0.1.0.

Tiers

Tier	What	Scope
Base	Universal coding standards	Matched file types
Language	Language-specific patterns	**/*.{ext}
Framework	Framework conventions	Framework file patterns

Phrasing system

Every rule in every pack follows a four-level phrasing system:

Level	Meaning
NEVER	Hard prohibition — violation is always wrong
MUST	Required — omission is always wrong
Prefer	Strong default — deviate only with explicit justification
Consider	Contextual suggestion — apply when it makes the code clearer

NEVER and MUST rules are enforced as invariants. Prefer and Consider rules are guidance Claude applies with judgment.

All Packs

Base (enabled by default)

Pack	Enforces	Paths
code-quality	Hallucinated API prevention, placeholder detection, codebase consistency, race conditions, edge cases, over-engineering prevention, naming, size limits	**/*.{go,ts,tsx,js,jsx,py,rb,php,rs,java,kt,swift,c,cpp,cs}
testing	Tautological test detection, behavior-focused tests, mock boundaries, TDD	**/*.{go,ts,tsx,js,jsx,py,rb,php,rs,java,kt}
security	Timing attack prevention, error exposure, input validation, parameterized queries, no secret logging	**/*.{go,ts,tsx,js,jsx,py,rb,php,rs,java,kt,sql}
error-handling	Typed errors, context enrichment, no silent catches	**/*.{go,ts,tsx,js,jsx,py,rb,php,rs,java,kt}

Base (opt-in)

Pack	Enforces	Paths
frontend	Component patterns, a11y, state management — seo.md owns alt text	**/*.{ts,tsx,js,jsx,vue,svelte,css,scss}
architecture	Layer boundary correctness, import discipline — if you use verikt, skip this pack	**/*.{go,ts,tsx,js,jsx,py,rb,php,rs,java,kt}
api	REST/GraphQL/gRPC conventions, versioning, error shapes — security.md owns validation and error exposure	**/*.{go,ts,tsx,js,jsx,py,rb,php,rs,java,kt}
database	Query hygiene, migration safety, index discipline — database.md owns index rules across all packs	**/*.{go,ts,tsx,js,jsx,py,rb,php,rs,java,kt,sql}
observability	Structured logging, tracing, metrics	**/*.{go,ts,tsx,js,jsx,py,rb,php,rs,java,kt}
seo	Technical SEO, structured data, Core Web Vitals, alt text — owns alt text across all packs	**/*.{html,tsx,jsx,vue,svelte,astro,md,mdx}

Language

Pack	Scope
go	**/*.go
typescript	**/*.{ts,tsx}
python	**/*.py
php	**/*.php

Framework

Pack	Scope
chi	**/*.go
nextjs	**/*.{ts,tsx,js,jsx}
laravel	**/*.php
symfony	**/*.php
rails	**/*.rb
django	**/*.py

Path scoping

Each rule pack declares a paths: glob in its frontmatter. Claude only loads the rule when editing a file that matches. This means:

• The Go rule pack never fires when you're editing TypeScript
• The security pack fires on both .go and .sql files (SQL is a security surface)
• The SEO pack fires on .html, .tsx, .vue, .astro, and .md but not .go

Path scoping keeps context lean — Claude loads only the rules relevant to the file being edited.

Framework packs declare a parent: field pointing to their language pack. Installing chi also ensures go is active. Installing nextjs ensures typescript is active.

Customization

See Custom Rules for toggling packs, extending existing rules, and creating new rule topics.