Blockchain

Defines and maintains consistent brand communication across all marketing materials. This skill should be used when creating new marketing content, auditing existing materials for voice consistency, onboarding team members to brand guidelines, or when content sounds generic or "off-brand."

Comprehensive security engineering skill for application security, penetration testing, security architecture, and compliance auditing. Includes security assessment tools, threat modeling, crypto implementation, and security automation. Use when designing security architecture, conducting penetration tests, implementing cryptography, or performing security audits.

Expert guide for building Emacs transient menus (keyboard-driven UI like Magit). Use when implementing or debugging transient-define-prefix, transient-define-suffix, or transient-define-infix commands.

Guidelines for optimizing Claude rulesets and instruction files (CLAUDE.md, settings.json) using context efficiency principles. Includes strategies for skill extraction, progressive disclosure, token savings calculation, and deduplication. Manually invoke when optimizing rulesets, reducing context size, extracting content to skills, or improving ruleset organization.

Protocol fuzzer script development using boofuzz framework. Use when creating network protocol fuzzers, defining protocol PDUs (Protocol Data Units), writing mutation-based fuzzing scripts, or contributing to the boofuzz project. Covers binary protocol definitions, session management, crash detection, and reporting findings.

LLM function calling and tool use patterns. Use when enabling LLMs to call external tools, defining tool schemas, implementing tool execution loops, or getting structured output from LLMs.

Maintain "just enough" context across work sessions using CURRENT.md, STATUS.md, and LESSONS.md files. Activate when tasks take >15 minutes, touch 3+ files, interruptions likely, or scope uncertain. Includes /snapshot and /pickup commands for saving and resuming work. ADHD-friendly, token-efficient approach.

SAP Cloud Application Programming Model (CAP) development skill using Capire documentation. Use when: building CAP applications, defining CDS models, implementing services, working with SAP HANA/SQLite/PostgreSQL databases, deploying to SAP BTP Cloud Foundry or Kyma, implementing Fiori UIs, handling authorization, multitenancy, or messaging. Covers CDL/CQL/CSN syntax, Node.js and Java runtimes, event handlers, OData services, and CAP plugins.

Use before creating worktrees or executing tasks - validates that CLAUDE.md defines required setup commands (install, optional postinstall) and provides clear error messages with examples if missing

Advanced password recovery and hash cracking tool supporting multiple algorithms and attack modes. Use when: (1) Performing authorized password auditing and security assessments, (2) Recovering passwords from captured hashes in forensic investigations, (3) Testing password policy strength and complexity, (4) Validating encryption implementations, (5) Conducting security research on cryptographic hash functions, (6) Demonstrating password weakness in penetration testing reports.

This skill is for writing integrations to the Ruby SDK. Claude acts as the engineer implementing LLM provider or agentic framework integrations. Use when adding support for OpenAI-like providers, Anthropic-like providers, or agent frameworks. Covers TDD workflow, comprehensive testing (streaming/non-streaming/tokens/multimodal), defensive coding, MCP validation, and StandardRB compliance.

Token-efficient markdown parsing, editing, and diagram generation using native CLI tools (Windows/Mac/Linux compatible)

Token-efficient MySQL/PostgreSQL operations using mycli and native CLI tools (Windows/Mac/Linux compatible). Replaces Artisan Tinker for database queries with 87% token savings.

Write correct and idiomatic Typst code for document typesetting. Use when creating or editing Typst (.typ) files, working with Typst markup, or answering questions about Typst syntax and features. Focuses on avoiding common syntax confusion (arrays vs content blocks, proper function definitions, state management).

Kubernetes security policies, RBAC, and Pod Security Standards for hardened cluster deployments. Use when implementing cluster security, defining network policies, or enforcing security compliance in Kubernetes environments.

Search and analyze Claude Code conversation history. Use when user asks about past conversations, previous solutions, what was discussed earlier, finding something from history, or analyzing usage patterns. Triggers include "what did we discuss", "find that conversation", "search history", "past sessions", "how much time", "token usage", "which tools".

Up-to-date library documentation retrieval using Context7 MCP tools. Process THINK → RESOLVE → FETCH → APPLY. Use when fetching library docs, resolving package names to IDs, getting implementation guides, exploring API references. Provides package resolution strategy, trust score evaluation, token scaling (3K-20K), topic selection patterns.

Generate TypeScript interfaces and types from data structure descriptions

Validate and test secrets stored in Doppler. Add API tokens/credentials to Doppler, verify storage and retrieval, test authentication with target services. Use when user mentions "add to Doppler", "store secret", "validate token", or provides API tokens needing secure storage.

Production-ready Nuxt 4 framework development with SSR, composables, data fetching, server routes, and Cloudflare deployment. Use when: building Nuxt 4 applications, implementing SSR patterns, creating composables, server routes, middleware, data fetching, state management, debugging hydration issues, deploying to Cloudflare, optimizing performance, or setting up testing with Vitest. Keywords: Nuxt 4, Nuxt v4, SSR, universal rendering, Nitro, Vue 3, useState, useFetch, useAsyncData, $fetch, composables, auto-imports, middleware, server routes, API routes, hydration, file-based routing, app directory, SEO, meta tags, useHead, useSeoMeta, transitions, error handling, runtime config, Cloudflare Pages, Cloudflare Workers, NuxtHub, Workers Assets, D1, KV, R2, Durable Objects, Vitest, testing, performance optimization, lazy loading, code splitting, prerendering, layers, modules, plugins, Vite, TypeScript, hydration mismatch, shallow reactivity, reactive keys, singleton pattern, defineNuxtConfig, defineEventHandler, navigateTo, definePageMeta, useRuntimeConfig, app.vue, server directory, public directory, assets directory