Blockchain

Define animations with @keyframes within @theme directive, use animate-{name} utilities, and implement entry animations with starting: variant. Use when creating custom animations or entry effects.

Security auditing patterns for Midnight Network smart contracts and dApps. Use when reviewing code for vulnerabilities, privacy leaks, cryptographic weaknesses, or performing security audits.

Common vulnerability patterns in Solidity and how to prevent them. Use when reviewing contracts for security issues or learning about common exploits.

Review test cases for Token Endpoint. Covers grant_type=authorization_code, client authentication (client_secret_basic, client_secret_post), token request/response validation, and all requirements per OIDC Core 1.0 Section 3.1.3 and OAuth 2.1.

Authentication system design and implementation guidance with Python examples using strict typing. Use when: (1) Designing authentication flows (signup, login, logout, refresh), (2) Selecting between session vs token-based auth, (3) Designing JWT structure and claims, (4) Implementing OAuth 2.0 flows, (5) Setting up multi-service authentication patterns, (6) Creating password reset and email verification flows, (7) Implementing role-based access control (RBAC), (8) Creating security checklists for auth systems, (9) Planning frontend/backend auth integration. All examples follow Python typing standards and security best practices.

Model business domains with entities, relationships, business rules, and permissions. Use when: (1) creating entity definitions, (2) defining business rules (BR-XXX), (3) designing permission structures, (4) analyzing domain impact, (5) maintaining domain documentation.

Define SLIs, SLOs, and implement burn-rate alerting

Comprehensive toolkit for building applications with JPYC (Japanese Yen Pegged Coin). Use this skill when developing with JPYC token, implementing payment features, integrating JPYC SDK, deploying JPYC contracts to Base Sepolia, or building DApps with JPYC. Supports both JPYC SDK v1 usage and direct Solidity smart contract development with Hardhat, ethers.js, viem, Next.js, and React.

Organize and manage Jira boards, issues, and sprints. Use when the user wants to: (1) List, create, update, or transition Jira issues, (2) View or manage sprints, (3) Assign issues or change status, (4) Query issues with JQL, (5) Manage Jira boards. Requires environment variables JIRA_URL, JIRA_USERNAME, JIRA_API_TOKEN, and optionally JIRA_PROJECTS_FILTER.

Complete guide for OpenAI's traditional/stateless APIs: Chat Completions (GPT-5, GPT-4o), Embeddings,Images (DALL-E 3), Audio (Whisper + TTS), and Moderation. Includes both Node.js SDK and fetch-basedapproaches for maximum compatibility.Use when: integrating OpenAI APIs, implementing chat completions with GPT-5/GPT-4o, generating textwith streaming, using function calling/tools, creating structured outputs with JSON schemas,implementing embeddings for RAG, generating images with DALL-E 3, transcribing audio with Whisper,synthesizing speech with TTS, moderating content, deploying to Cloudflare Workers, or encounteringerrors like rate limits (429), invalid API keys (401), function calling failures, streaming parseerrors, embeddings dimension mismatches, or token limit exceeded.Keywords: openai api, chat completions, gpt-5, gpt-5-mini, gpt-5-nano, gpt-4o, gpt-4-turbo,openai sdk, openai streaming, function calling, structured output, json schema, openai embeddings,text-embedding-3, dall-e-3, image ge

This skill provides comprehensive knowledge for integrating Clerk authentication in React, Next.js, and Cloudflare Workers applications. It should be used when setting up user authentication, implementing protected routes, verifying JWT tokens, creating custom JWT templates with user metadata and organization claims, configuring Clerk middleware, integrating with shadcn/ui components, testing authentication flows, or troubleshooting Clerk authentication errors.Use when: adding Clerk to React/Vite projects, setting up Clerk in Next.js App Router, implementing Clerk authentication in Cloudflare Workers, configuring clerkMiddleware for route protection, creating custom JWT templates with shortcodes (user.id, user.email, user.public_metadata.role), accessing session claims for RBAC, integrating with Supabase/Grafbase, verifying tokens with @clerk/backend, integrating Clerk with Hono, using Clerk shadcn/ui components, writing E2E tests with Playwright, generating test session tokens, using test email addresses a

Identifies weak cryptographic algorithms, hardcoded keys, and insecure key management practices in binary code. Use when analyzing encryption/decryption, authentication mechanisms, or reviewing cryptographic implementations.

This skill should be used when the user asks about "token efficiency", "compress responses", "reduce token usage", "minimize context", "compact format", "token optimization", or discusses reducing token consumption in MCP responses while maintaining value.

Design and implement RESTful API endpoints following REST principles with proper HTTP methods, status codes, resource-based URLs, and rate limiting. Use this skill when creating or modifying API endpoints, route handlers, controllers, or any backend API layer code. Apply when working on files that define API routes (routes/*.ts, controllers/*.ts, api/*.ts, *Controller.cs), implement request/response handlers, establish API versioning, or configure endpoint middleware. Use when building Bun/Express APIs, ASP.NET Core Web APIs, or Next.js API routes. This skill ensures RESTful design with clear resource-based URLs, consistent lowercase hyphenated naming, appropriate HTTP methods (GET, POST, PUT, PATCH, DELETE), proper status codes (200, 201, 400, 404, 500), plural nouns for resources (/users, /products), limited nesting depth (2-3 levels max), query parameters for filtering/sorting/pagination, API versioning strategies, and rate limiting headers in responses.

Integrate GitHub Core Apps with Actions workflows for org-scoped automation. Generate tokens, access APIs, and implement cross-repository operations patterns.

Complete Behavior-Driven Development workflow coordinating SCENARIO → STEP DEFINITIONS → IMPLEMENT → REFACTOR cycle with Given/When/Then scenarios. Use when writing BDD tests or implementing features from user stories.

Style with TailwindCSS v4 using @theme directive for theming, responsive design, and dark mode. Use when defining custom colors/fonts, implementing responsive layouts, or adding utility classes.

Security audit skill for React Native applications. Use when reviewing code for vulnerabilities, detecting leaked secrets (API keys, tokens, credentials), identifying exposed personal data (PII), checking insecure storage, validating authentication flows, reviewing network security, and ensuring compliance with mobile security best practices (OWASP MASVS). Covers both JavaScript/TypeScript and native iOS/Android code.

Use this skill when proposing new features or changes via the Spec PR process. Manages the creation, refinement, and approval of feature specifications before any code is written. Triggers include "create spec", "propose change", "start spec PR", or beginning feature definition.

Provides the "how-to" for workflow / task execution orchestration. Defines methods for planning multi-phase task/workflows, implementing them through agent delegation, managing artifacts, and tracking progress.