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schema-shield

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Secure, stack-safe JSON Schema validation.

Software Engineering#security#serverless#validation#customization#csp#edge#json-schema
AuthorMasquerade-Circus
Version1.0.0
Installs0

System Documentation

What problem does it solve?

SchemaShield provides a CSP-safe, zero-runtime-code validator for JSON Schema, designed to prevent prototype pollution and remote references, while ensuring predictable performance in strict environments.

Core Features & Use Cases

  • CSP-compliant, no eval or code generation, making it safe for strict environments and CSP policies.
  • Stack-safe, with a flat interpreter to prevent recursion-related stack overflows in deeply nested payloads.
  • Zero runtime dependencies and native support for runtime object validation (including class instances) with rich error reporting.
  • Edge/Serverless ready and suitable for Cloudflare Workers, Vercel Edge Functions, Deno, or Bun environments.
  • Immutable mode and configurable fail-fast behavior, plus extensibility via custom types, formats, and keywords.

Quick Start

Install SchemaShield, import it, and compile a schema with new SchemaShield().compile(schema) to validate data.

Dependency Matrix

Required Modules

None required

Components

Standard package

💻 Claude Code Installation

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Please help me install this Skill:
Name: schema-shield
Download link: https://github.com/Masquerade-Circus/schema-shield/archive/main.zip#schema-shield

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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