API Dev
API design, REST, GraphQL
openai-api
by ynulihao
Build with OpenAI's stateless APIs - Chat Completions (GPT-5, GPT-4o), Embeddings, Images (DALL-E 3), Audio (Whisper + TTS), and Moderation. Includes Node.js SDK and fetch-based approaches for Cloudflare Workers. Use when: implementing chat completions with GPT-5/GPT-4o, streaming responses with SSE, using function calling/tools, creating structured outputs with JSON schemas, generating embeddings for RAG (text-embedding-3-small/large), generating images with DALL-E 3, editing images with GPT-Image-1, transcribing audio with Whisper, synthesizing speech with TTS (11 voices), moderating content (11 safety categories), or troubleshooting rate limits (429), invalid API keys (401), function calling failures, streaming parse errors, embeddings dimension mismatches, or token limit exceeded.
api-gateway-configuration
by aj-geddes
Configure API gateways for routing, authentication, rate limiting, and request/response transformation. Use when deploying microservices, setting up reverse proxies, or managing API traffic.
enhanced-markdown
by Dwsy
"Guide LLMs to output markdown that fully utilizes Markdown Viewer extension rendering capabilities including Mermaid, Vega-Lite, Infographic, DOT diagrams, and HTML styling for maximum human readability."
diagramming
by ynulihao
"Create technical diagrams using Mermaid syntax for architecture, sequences, ERDs, flowcharts, and state machines. Use for visualizing system design, data flows, and processes. Triggers: diagram, mermaid, architecture diagram, sequence diagram, flowchart, ERD, entity relationship, state diagram, C4 model, component diagram, visualize, draw."
API Integration Specialist
by ynulihao
Expert in integrating third-party APIs with proper authentication, error handling, rate limiting, and retry logic. Use when integrating REST APIs, GraphQL endpoints, webhooks, or external services. Specializes in OAuth flows, API key management, request/response transformation, and building robust API clients.
markersfinder
by pwwang
Flexible marker finding process that wraps Seurat's FindMarkers function for custom group comparisons beyond simple cluster-vs-all analysis. Unlike ClusterMarkers (all-vs-all cluster comparisons), MarkersFinder enables targeted differential expression analysis between specific groups, conditions within cell types, or any custom comparison defined by metadata columns. Automatically performs pathway enrichment analysis on significant markers and generates comprehensive visualizations.
tidbx-serverless-driver
by pingcap
Guidance for using the TiDB Cloud Serverless Driver (Beta) in Node.js, serverless, and edge environments. Use when connecting to TiDB Cloud Starter/Essential over HTTP with @tidbcloud/serverless, or when integrating with Prisma/Kysely/Drizzle serverless adapters in Vercel/Cloudflare/Netlify/Deno/Bun. Use this skill for serverless driver setup and edge runtime guidance.
tidbx-kysely
by pingcap
Set up Kysely with TiDB Cloud (TiDB X), including @tidbcloud/kysely over the TiDB Cloud serverless HTTP driver for serverless or edge environments, plus standard TCP usage. Use for Kysely + TiDB Cloud connection setup, demo snippets, and environment-specific guidance.
Email Composer
by ynulihao
Draft professional emails for various contexts including business, technical, and customer communication. Use when the user needs help writing emails or composing professional messages.
cartographer
by kingbootoshi
Maps and documents codebases of any size by orchestrating parallel subagents. Creates docs/CODEBASE_MAP.md with architecture, file purposes, dependencies, and navigation guides. Updates CLAUDE.md with a summary. Use when user says "map this codebase", "cartographer", "/cartographer", "create codebase map", "document the architecture", "understand this codebase", or when onboarding to a new project. Automatically detects if map exists and updates only changed sections.
spring-boot-4-migration
by adityamparikh
Guides Spring Boot version migrations: 2.7.x to 3.5.x, 3.5.x to 4.x, and minor upgrades within 4.x. Covers Java/Kotlin baseline upgrades, Jakarta EE namespace (javax to jakarta), Hibernate 5/6/7, Spring Security 5/6/7, modular starters, Jackson 3, Spring Framework 7, observability (Micrometer Tracing, OpenTelemetry), property and package relocations, JUnit 6, Testcontainers 2, MockitoBean, HTTP clients, resilience, AOT/native, API versioning, and OpenRewrite recipe automation. Supports all-at-once and gradual strategies with compatibility bridges. Java and Kotlin; Maven and Gradle. Trigger on requests like "upgrade/migrate to Spring Boot 3 or 4", "Spring Boot 2 to 3", "javax to jakarta", "upgrade to 4.1", "OpenRewrite Spring Boot", or any request moving a Spring Boot project to a newer major or minor version. Do NOT use for general Spring Boot development on a fixed version (new endpoints, services, JPA, tests) — use the spring-boot skill for that.
sentry
by brianlovin
Sentry error monitoring and performance tracing patterns for Next.js applications.
skyll
by assafelovic
Search and retrieve agent skills at runtime. This skill should be used when the agent needs to find specialized capabilities, workflows, or domain knowledge to accomplish a task. Skyll aggregates skills from skills.sh and returns full SKILL.md content ready for context injection.
shopee-optimizer
by oyi77
Shopee product management automation - listings, pricing, inventory, and order processing
datetime
by DeevsDeevs
Get current date and time in various formats. Use whenever you need the current date, time, timestamps, or formatted datetime values for any purpose (logging, file naming, scheduling, comparisons, etc.)
golang-pro
by DeevsDeevs
Use when building Go applications requiring concurrent programming, microservices architecture, or high-performance systems. Invoke for goroutines, channels, Go generics, gRPC integration.
openapi-specification
by NickCrew
OpenAPI 3.x specification design, schema patterns, and validation for REST API contracts. Use when creating or maintaining API specifications, generating documentation, or validating API contracts.
rt-personalization
by treasure-data
Create RT 2.0 Personalization services AND entities that return real-time personalized API responses. Creates both the service configuration (via tdx ps pz) and the actual Personalization entity (via API) with payload definition. Use after RT configuration is complete when user wants to "create RT personalization" or "build personalization API".
rt-journey-activations
by treasure-data
Configure RT journey activations - webhooks, Salesforce, email, and other integrations for real-time event-triggered actions
time-filtering
by treasure-data
Advanced td_interval patterns including offset dates (-1d/2025-10-01, -7d/-1d, 0M/now), td_interval_range for debugging, td_time_string for display formatting, and partition pruning optimization.
pytd
by treasure-data
Expert assistance for using pytd (Python SDK) to query and import data with Treasure Data. Use this skill when users need help with Python-based data analysis, querying Presto/Hive, importing pandas DataFrames, bulk data uploads, or integrating TD with Python analytical workflows.
rt-config-attributes
by treasure-data
Configure RT 2.0 attributes - single, list, counter, and batch attributes for real-time profile enrichment
rt-journey-monitor
by treasure-data
Monitor RT journeys - track activation success, debug failures, query activation logs, and optimize performance
rt-config-events
by treasure-data
Configure RT 2.0 event tables and key events - define which streaming events to track and filter for real-time processing