Vibe Index
🎯

schema-composition

🎯Skill

from front-depiction/claude-setup

VibeIndex|
What it does

Validates and composes JSON/TypeScript schemas by detecting and suggesting structural improvements or enforcing composition patterns across schema definitions.

schema-composition

Installation

Install skill:
npx skills add https://github.com/front-depiction/claude-setup --skill schema-composition
4
Last UpdatedJan 19, 2026
View on GitHubBack to Skills

Skill Details

SKILL.md

Overview

# .claude

Pattern-based suggestions and guardrails for Claude Code tool usage via PreToolUse/PostToolUse hooks.

Overview

The pattern-detector system hooks into Claude Code's PreToolUse and PostToolUse events to provide:

  • Context-aware suggestions when patterns are detected in tool inputs
  • Permission controls (ask/deny) for dangerous operations
  • Automatic skill recommendations based on code patterns

Patterns

Patterns are markdown files in .claude/patterns/ with YAML frontmatter that match against tool inputs:

```markdown

---

name: prefer-option-over-null

description: Suggest Option type instead of null/undefined

event: PostToolUse

tool: Edit|Write

glob: "*/.ts"

pattern: "\bnull\b|\bundefined\b"

action: context

level: info

tag: code-smell

---

Use Option from Effect instead of null or undefined:

```typescript

// Avoid

const findUser = (id: string): User | null => ...

// Prefer

const findUser = (id: string): Option.Option => ...

```

```

Pattern Schema

Frontmatter fields (from patterns/schema.ts):

Actions

Content Matching

The pattern detector searches these fields in order:

  1. command (Bash)
  2. new_string (Edit)
  3. content (Write)
  4. pattern (Grep)
  5. query (WebSearch)
  6. url (WebFetch)
  7. prompt (WebFetch)

Falls back to JSON.stringify(tool_input) if none match.

Testing

Files

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