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Email Header Injection Testing

testing-for-email-header-injection

mukul975/Anthropic-Cybersecurity-Skills

Guides testers through injecting CRLF sequences in form fields and JSON APIs to expose SMTP header injection flaws, assess spam relay abuse, and document impacts for contact forms, password resets, and newsletter senders.

JWT Vulnerability Testing Guide

testing-for-json-web-token-vulnerabilities

mukul975/Anthropic-Cybersecurity-Skills

Assess JWT implementations for algorithm confusion, none bypass, kid/JKU/X5U injections, and weak secrets to detect authentication bypass and privilege escalation risks during API, OAuth/OIDC, or SSO penetration tests.

Sensitive Data Exposure Testing

testing-for-sensitive-data-exposure

mukul975/Anthropic-Cybersecurity-Skills

Guides security testers through scanning web apps for leaked API keys, exposed config files, over-verbose responses, and insecure transport to ensure compliance during penetration tests.

Mobile API Auth Testing

testing-mobile-api-authentication

mukul975/Anthropic-Cybersecurity-Skills

Assess mobile backend APIs for authentication and authorization weaknesses, covering JWT/OAuth flaws, insecure token handling, session fixation, IDOR, and privilege escalation during penetration tests of mobile apps.

WebSocket Security Tests

testing-websocket-api-security

mukul975/Anthropic-Cybersecurity-Skills

Probes WebSocket APIs for auth bypass, CSWSH, injection, DoS flooding, and info leakage by intercepting handshakes/messages with Burp Suite, crafting payloads, and scripting real-time assessments.

Type-Safe tRPC Fullstack

sickn33/antigravity-awesome-skills

Describe how to wire tRPC routers, procedures, middleware, context, and Next.js integrations to deliver end-to-end type-safe TypeScript APIs with realtime subscriptions and shared client/server types.

Venture Capital Model

financial-model

davepoon/buildwithclaude

Executes a structured VC valuation workflow that ingests SaaS or startup metrics, runs DCF, comparable revenue multiples, and SaaS health models via Python, and synthesizes a defensible valuation, runway, and capital-efficiency narrative for users planning fundraising or benchmarking.

GoldRush Multi-Chain API

sickn33/antigravity-awesome-skills

GoldRush API by Covalent lets agents query wallet balances, token prices, transaction history, DEX pairs, and live OHLCV across 100+ chains via REST, CLI, SDK, or WebSocket, avoiding chain-specific plumbing.

Hono Edge Framework

sickn33/antigravity-awesome-skills

Hono is a tiny, ultrafast web API framework that runs on Cloudflare Workers, Deno, Bun, Node.js and other WinterCG runtimes, ideal for edge APIs, BFFs, and full-stack apps needing TypeScript safety.

SvelteKit Full-Stack

sickn33/antigravity-awesome-skills

Guide for building full-stack web apps with SvelteKit, covering file-based routing, SSR/SSG, API endpoints, form actions, and layouts so you can deliver fast, developer-friendly experiences with a single framework.

MCP Server Builder

build-mcp-server

anthropics/claude-plugins-official

Guides developers through discovering requirements and choosing deployment models before scaffolding Model Context Protocol servers for Claude, ensuring decisions match APIs, user scopes, and tool patterns.

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