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UltronCore

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• 20 hours ago last updated

1. ▌
   Iceberg · ultroncore

   Work with Apache Iceberg — an open table format for huge analytic datasets that brings ACID transactions, schema evolution, time travel, and partition pruning to data lakes. Use this skill whenever the user mentions Iceberg, wants to manage large Parquet datasets with transactions, needs time travel queries on a data lake, or is building a lakehouse architecture. Trigger for "apache iceberg", "iceberg table", "iceberg catalog", "iceberg spark", or "open table format".
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   Meltano · ultroncore

   Build ELT pipelines with Meltano — the open-source Singer-compatible ELT platform that manages taps, targets, and transformations as code. Use this skill whenever the user wants to extract data from APIs/databases, load into a warehouse, or set up a data pipeline using Singer taps/targets. Trigger for "meltano", "singer tap", "elt pipeline open source", "meltano elt", or "data extraction pipeline".
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   LLM Eval · ultroncore bundle

   Route LLM evaluation tasks to the right framework — unit testing, RAG eval, tracing, experiment tracking
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   Chaos Engineering · ultroncore

   Design and run chaos engineering experiments to build confidence in system resilience. Covers hypothesis-driven failure injection, steady-state monitoring, Chaos Monkey, Litmus, and game days.
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   Frontend Design · ultroncore

   Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.
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   Tanstack Router · ultroncore

   Type-safe client-side router with search params, loaders, and file-based routing
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   Vite Plugin Dev · ultroncore

   Authoring custom Vite plugins — transforms, virtual modules, HMR
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   Agent Fetch · ultroncore bundle

   Fetch and extract full article content from URLs. Returns complete text with structure (headings, links, lists) instead of summaries. Multiple extraction strategies, browser impersonation, cookies, crawling, custom selectors, 200-700ms.
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   Expo Skills · ultroncore bundle

   Expo React Native mobile app development with RevenueCat payments, AdMob ads, i18n localization, onboarding flow, paywall, and NativeTabs navigation
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    MCP Builder · ultroncore bundle

    Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
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    IOS Networking · ultroncore bundle

    iOS networking expert skill covering URLSession with async/await, type-safe generic API clients, Codable JSON encoding/decoding, error handling with retry and exponential backoff, OAuth2 token management, WebSocket connections, caching strategies (URLCache/NSCache), network monitoring (NWPathMonitor), multipart uploads, certificate pinning, and GraphQL with Apollo. Use this skill whenever the user builds networking code, API clients, handles JSON, implements authentication flows, or works with remote data. Triggers on: URLSession, networking, API client, REST, HTTP, JSON, Codable, endpoint, fetch data, download, upload, WebSocket, cache, network monitor, reachability, multipart, GraphQL, Apollo, bearer token, refresh token, retry, backoff, certificate pinning, URL, request, response, async networking.
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12. ▌
    Email Sequence · ultroncore bundle

    When the user wants to create or optimize an email sequence, drip campaign, automated email flow, or lifecycle email program. Also use when the user mentions "email sequence," "drip campaign," "nurture sequence," "onboarding emails," "welcome sequence," "re-engagement emails," "email automation," "lifecycle emails," "trigger-based emails," "email funnel," "email workflow," "what emails should I send," "welcome series," or "email cadence." Use this for any multi-email automated flow. For cold outreach emails, see cold-email. For in-app onboarding, see onboarding-cro.
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    Onboarding Cro · ultroncore bundle

    When the user wants to optimize post-signup onboarding, user activation, first-run experience, or time-to-value. Also use when the user mentions "onboarding flow," "activation rate," "user activation," "first-run experience," "empty states," "onboarding checklist," "aha moment," "new user experience," "users aren't activating," "nobody completes setup," "low activation rate," "users sign up but don't use the product," "time to value," or "first session experience." Use this whenever users are signing up but not sticking around. For signup/registration optimization, see signup-flow-cro. For ongoing email sequences, see email-sequence.
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14. ▌
    Social Content · ultroncore bundle

    When the user wants help creating, scheduling, or optimizing social media content for LinkedIn, Twitter/X, Instagram, TikTok, Facebook, or other platforms. Also use when the user mentions 'LinkedIn post,' 'Twitter thread,' 'social media,' 'content calendar,' 'social scheduling,' 'engagement,' 'viral content,' 'what should I post,' 'repurpose this content,' 'tweet ideas,' 'LinkedIn carousel,' 'social media strategy,' or 'grow my following.' Use this for any social media content creation, repurposing, or scheduling task. For broader content strategy, see content-strategy.
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    Hashicorp Vault · ultroncore

    HashiCorp Vault — secrets management, encryption as a service, and dynamic credentials. Use this skill whenever the user needs to store and retrieve secrets, generate dynamic database credentials, issue short-lived certificates (PKI), set up Kubernetes auth for pod secret access, configure Vault policies, or implement secrets rotation. Trigger for "vault secrets", "vault kv", "vault dynamic credentials", "vault pki", "vault kubernetes auth", "hashicorp vault", or "secrets management vault".
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16. ▌
    Excalidraw Diagram · ultroncore bundle

    Create Excalidraw diagram JSON files that make visual arguments. Use when the user wants to visualize workflows, architectures, or concepts.
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    Image Optimization · ultroncore bundle

    Image optimization strategies: next/image, WebP/AVIF conversion, CDN serving, responsive images, and lazy loading. Triggers on: next/image, Image optimization, WebP, AVIF, blur placeholder, srcSet, image CDN, sharp, LCP image.
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18. ▌
    Brand Guidelines · ultroncore bundle

    Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.
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    Skill Name · ultroncore bundle

    One-line description of what this skill does and when to use it.
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    Vector RAG Advanced · ultroncore bundle

    Advanced RAG patterns: hybrid search, reranking, chunking strategies, query transformation, and eval. Triggers on: RAG, retrieval augmented generation, reranking, hybrid search, BM25, pgvector, chunk strategy, query expansion, RAG eval.
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21. ▌
    Applescript Jxa · ultroncore bundle

    macOS automation with AppleScript and JavaScript for Automation (JXA). Triggers on: AppleScript, JXA, osascript, tell application, JavaScript for Automation, System Events, keystroke, do shell script.
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22. ▌
    Shortcuts Generator · ultroncore bundle

    Generate macOS/iOS Shortcuts by creating plist files. Use when asked to create shortcuts, automate workflows, build .shortcut files, or generate Shortcuts plists. Covers 1,155 actions (427 WF*Actions + 728 AppIntents), variable references, and control flow.
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23. ▌
    Vault Auto Sync · ultroncore

    Syncs the claude-skill-vault GitHub repo to both ~/.claude/skills (Claude Code CLI) and the Claude desktop app personal skills directory. Run after any push to the skill vault, or invoke manually to pull latest skills from GitHub and install them everywhere. Detects new skills, installs missing ones, and reports what changed.
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24. ▌
    File Organizer · ultroncore bundle

    Intelligently organizes your files and folders across your computer by understanding context, finding duplicates, suggesting better structures, and automating cleanup tasks. Reduces cognitive load and keeps your digital workspace tidy without manual effort.
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    Webapp Testing · ultroncore bundle

    Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
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    API Rate Limiting · ultroncore

    Implement production-grade API rate limiting with sliding window, token bucket, and fixed window algorithms using Redis. Covers per-user limits, tiered pricing gates, distributed rate limiting, and rate limit headers.
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27. ▌
    Postgres Advanced · ultroncore

    Advanced PostgreSQL patterns including window functions, CTEs, JSONB, partitioning, indexes, connection pooling, and performance tuning for production workloads.
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28. ▌
    Postgres Sharding · ultroncore

    Scale PostgreSQL horizontally using sharding strategies — Citus for distributed tables, pg_partman for declarative partitioning, logical replication for read replicas, and custom shard routing. Covers consistent hashing, range sharding, rebalancing, and cross-shard queries.
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29. ▌
    Security Advisor · ultroncore

    Security and compliance advisory — SOC 2 readiness, GDPR/privacy frameworks, ISO 27001, risk assessment, and AI agent safety. Conversational guidance and framework planning, not code scanning.
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    Flyio Deploy · ultroncore bundle

    Fly.io deployment: flyctl, fly.toml, secrets, volumes, Postgres, and scaling. Triggers on: Fly.io, flyctl, fly.toml, fly deploy, fly secrets, fly volumes, Fly Postgres, fly machine.
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31. ▌
    Clickhouse Analytics · ultroncore

    Build high-performance analytics pipelines with ClickHouse. Covers table engines, data ingestion from Kafka/S3, materialized views, query optimization, and running real-time analytics at scale.
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    Elasticsearch Search · ultroncore

    Design and implement full-text search, faceted navigation, autocomplete, and analytics using Elasticsearch. Covers index design, mappings, query DSL, aggregations, and performance tuning.
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33. ▌
    Turborepo Monorepo · ultroncore

    Speed up monorepo builds with Turborepo's intelligent task scheduling, caching, and parallelism
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34. ▌
    IOS Concurrency · ultroncore bundle

    Swift Concurrency expert skill covering async/await, structured concurrency (Task, TaskGroup), actors and @MainActor, Sendable protocol and checking, AsyncSequence/AsyncStream, continuations for bridging callback APIs, Swift 6 strict concurrency mode, and common concurrency patterns (debouncing, throttling, actor-based shared state, background processing). Use this skill whenever the user writes concurrent Swift code, works with async/await, actors, or Sendable, migrates to Swift 6 concurrency, or needs to handle background work and thread safety. Triggers on: async, await, Task, TaskGroup, actor, @MainActor, Sendable, @Sendable, concurrency, AsyncSequence, AsyncStream, continuation, withCheckedContinuation, nonisolated, GlobalActor, Swift 6, strict concurrency, data race, thread safety, background task, parallel, concurrent, dispatch queue migration, or any Swift concurrency question.
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35. ▌
    IOS Performance · ultroncore bundle

    iOS performance optimization expert skill covering memory management (ARC, retain cycles, weak/unowned, value vs reference types, copy-on-write), SwiftUI performance (view identity, @Observable vs ObservableObject, lazy containers, EquatableView, image caching), Instruments profiling (Time Profiler, Allocations, Leaks, Energy Log, Core Animation, SwiftUI instrument), app launch optimization, network performance, battery optimization, build performance, and common anti-patterns. Use this skill whenever the user optimizes iOS app performance, investigates memory leaks, profiles with Instruments, improves launch time, or fixes frame drops. Triggers on: performance, memory leak, retain cycle, ARC, weak self, profiling, Instruments, Time Profiler, Allocations, frame rate, FPS, launch time, battery, energy, optimization, slow, lag, freeze, hang, jank, memory pressure, CPU usage, build time, compile time, app size, or any iOS performance question.
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36. ▌
    Launch Strategy · ultroncore bundle

    When the user wants to plan a product launch, feature announcement, or release strategy. Also use when the user mentions 'launch,' 'Product Hunt,' 'feature release,' 'announcement,' 'go-to-market,' 'beta launch,' 'early access,' 'waitlist,' 'product update,' 'how do I launch this,' 'launch checklist,' 'GTM plan,' or 'we're about to ship.' Use this whenever someone is preparing to release something publicly. For ongoing marketing after launch, see marketing-ideas.
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37. ▌
    Marketing Ideas · ultroncore

    When the user needs marketing ideas, inspiration, or strategies for their SaaS or software product. Also use when the user asks for 'marketing ideas,' 'growth ideas,' 'how to market,' 'marketing strategies,' 'marketing tactics,' 'ways to promote,' 'ideas to grow,' 'what else can I try,' 'I don't know how to market this,' 'brainstorm marketing,' or 'what marketing should I do.' Use this as a starting point whenever someone is stuck or looking for inspiration on how to grow. For specific channel execution, see the relevant skill (paid-ads, social-content, email-sequence, etc.).
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38. ▌
    Signup Flow Cro · ultroncore bundle

    When the user wants to optimize signup, registration, account creation, or trial activation flows. Also use when the user mentions "signup conversions," "registration friction," "signup form optimization," "free trial signup," "reduce signup dropoff," "account creation flow," "people aren't signing up," "signup abandonment," "trial conversion rate," "nobody completes registration," "too many steps to sign up," or "simplify our signup." Use this whenever the user has a signup or registration flow that isn't performing. For post-signup onboarding, see onboarding-cro. For lead capture forms (not account creation), see form-cro.
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39. ▌
    Dashboard Designer · ultroncore

    Notion Dashboard Designer Skill
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    Database Architect · ultroncore

    Notion Database Architect Skill
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41. ▌
    Kor · ultroncore

    Structured data extraction from LLMs using schema definitions and few-shot examples
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42. ▌
    Dspy · ultroncore bundle

    Build complex AI systems with declarative programming, optimize prompts automatically, create modular RAG systems and agents with DSPy - Stanford NLP's framework for systematic LM programming
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43. ▌
    Mteb · ultroncore

    Massive Text Embedding Benchmark for evaluating and comparing embedding models across tasks
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44. ▌
    Faiss · ultroncore bundle

    Facebook's library for efficient similarity search and clustering of dense vectors. Supports billions of vectors, GPU acceleration, and various index types (Flat, IVF, HNSW). Use for fast k-NN search, large-scale vector retrieval, or when you need pure similarity search without metadata. Best for high-performance applications.
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45. ▌
    Ragas · ultroncore

    Evaluation framework for RAG pipelines measuring faithfulness, relevance, and answer correctness
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46. ▌
    Loki · ultroncore

    Loki — log aggregation and querying in the Grafana observability stack. Use this skill whenever the user needs to aggregate logs from Kubernetes pods or containers, write LogQL queries, set up Promtail or Alloy log collection, configure log retention and storage, alert on log patterns, or integrate logs with Grafana dashboards. Trigger for "loki", "LogQL", "Promtail", "log aggregation grafana", "kubernetes log collection", or "grafana logs".
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47. ▌
    Chroma · ultroncore bundle

    Open-source embedding database for AI applications. Store embeddings and metadata, perform vector and full-text search, filter by metadata. Simple 4-function API. Scales from notebooks to production clusters. Use for semantic search, RAG applications, or document retrieval. Best for local development and open-source projects.
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48. ▌
    Crewai Multi Agent · ultroncore bundle

    Multi-agent orchestration framework for autonomous AI collaboration. Use when building teams of specialized agents working together on complex tasks, when you need role-based agent collaboration with memory, or for production workflows requiring sequential/hierarchical execution. Built without LangChain dependencies for lean, fast execution.
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49. ▌
    Hf CLI · ultroncore bundle

    Hugging Face Hub CLI (`hf`) for downloading, uploading, and managing models, datasets, spaces, buckets, repos, papers, jobs, and more on the Hugging Face Hub. Use when: handling authentication; managing local cache; managing Hugging Face Buckets; running or scheduling jobs on Hugging Face infrastructure; managing Hugging Face repos; discussions and pull requests; browsing models, datasets and spaces; reading, searching, or browsing academic papers; managing collections; querying datasets; configuring spaces; setting up webhooks; or deploying and managing HF Inference Endpoints. Make sure to use this skill whenever the user mentions 'hf', 'huggingface', 'Hugging Face', 'huggingface-cli', or 'hugging face cli', or wants to do anything related to the Hugging Face ecosystem and to AI and ML in general. Also use for cloud storage needs like training checkpoints, data pipelines, or agent traces. Use even if the user doesn't explicitly ask for a CLI command. Replaces the deprecated `huggingface-cli`.
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50. ▌
    Marvin · ultroncore

    AI functions and classifiers using LLMs as pure Python functions with type annotations
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51. ▌
    Qdrant Vector Search · ultroncore bundle

    High-performance vector similarity search engine for RAG and semantic search. Use when building production RAG systems requiring fast nearest neighbor search, hybrid search with filtering, or scalable vector storage with Rust-powered performance.
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52. ▌
    Sglang · ultroncore

    Fast LLM inference runtime with RadixAttention and structured generation support
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53. ▌
    Hono · ultroncore

    Build ultra-fast web APIs and full-stack apps with Hono — a lightweight, multi-runtime web framework that runs on Bun, Cloudflare Workers, Deno, Node.js, and AWS Lambda. Use this skill whenever the user mentions Hono, building a fast REST API, Edge API, Cloudflare Worker API, or wants a minimal TypeScript web framework. Trigger even if they just say "fast API with Bun" or "edge-compatible web server" without naming Hono explicitly.
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54. ▌
    Alloy · ultroncore

    Grafana Alloy — OpenTelemetry collector and telemetry pipeline for the Grafana stack. Use this skill whenever the user needs to collect metrics, logs, or traces with an OTel-native collector, replace Prometheus Agent or Promtail with a unified collector, configure Alloy to send to Loki/Tempo/Mimir/Prometheus, write River/Alloy configuration files, or set up a telemetry pipeline from Kubernetes. Trigger for "grafana alloy", "alloy collector", "River config", "replace promtail alloy", or "otel collector grafana".
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55. ▌
    Nomad · ultroncore

    HashiCorp Nomad — flexible workload orchestrator for containers, VMs, and binaries. Use this skill whenever the user needs to schedule jobs on bare-metal or cloud VMs without Kubernetes, run non-containerized workloads (Java JARs, raw binaries), orchestrate batch jobs alongside services, configure Nomad job specs, set up Nomad clusters, or migrate from cron/Kubernetes to Nomad. Trigger for "nomad job", "nomad scheduler", "nomad cluster", "hashicorp nomad", "orchestrate non-docker workloads", or "nomad vs kubernetes".
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56. ▌
    Tempo · ultroncore

    Tempo — distributed tracing backend for the Grafana observability stack. Use this skill whenever the user needs to store and query distributed traces, integrate with OpenTelemetry, set up trace-to-logs or trace-to-metrics correlation in Grafana, configure Tempo with Jaeger/Zipkin/OTLP ingest, or replace Jaeger/Zipkin with a cost-efficient trace backend. Trigger for "tempo tracing", "grafana traces", "TraceQL", "OTLP grafana", "distributed tracing grafana", or "replace jaeger".
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57. ▌
    Autogen · ultroncore

    Microsoft's multi-agent conversation framework for building collaborative AI workflows
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58. ▌
    Unsloth · ultroncore bundle

    Expert guidance for fast fine-tuning with Unsloth - 2-5x faster training, 50-80% less memory, LoRA/QLoRA optimization
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59. ▌
    Argocd · ultroncore

    ArgoCD — GitOps continuous delivery for Kubernetes. Use this skill whenever the user wants to set up GitOps workflows, sync Kubernetes manifests from Git, manage ArgoCD Applications/AppProjects, configure sync policies, health checks, rollouts, or multi-cluster deployments. Trigger for "argocd", "GitOps", "sync from git", ApplicationSet, App of Apps pattern, or "deploy to kubernetes from git".
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60. ▌
    Consul · ultroncore

    HashiCorp Consul — service discovery, service mesh, and distributed configuration. Use this skill whenever the user needs service registration and health checking, DNS-based service discovery, Consul Connect service mesh with mTLS, KV store for distributed config, ACL policies, or wants to understand how Consul pairs with Nomad/Vault. Trigger for "consul service discovery", "consul connect", "consul kv", "consul dns", "consul acl", "hashicorp consul", or "service mesh consul".
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61. ▌
    Qwik · ultroncore

    Resumability framework — instant loading with zero hydration cost
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62. ▌
    Github Actions Advanced · ultroncore bundle

    Advanced GitHub Actions: matrix builds, reusable workflows, secrets, caching, and deployment pipelines. Triggers on: GitHub Actions, .github/workflows, workflow_call, matrix, actions/cache, needs:, environment: production, OIDC.
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63. ▌
    Data Versioning Dvc · ultroncore

    Version datasets, models, and ML pipelines with DVC (Data Version Control). Covers remote storage backends, pipeline stages with dvc.yaml, experiment tracking, metrics comparison, and integrating DVC with Git and CI/CD workflows.
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64. ▌
    Statistical Analyst · ultroncore bundle

    Run hypothesis tests, analyze A/B experiment results, calculate sample sizes, and interpret statistical significance with effect sizes. Use when you need to validate whether observed differences are real, size an experiment correctly before launch, or interpret test results with confidence.
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65. ▌
    Env Config Validator · ultroncore bundle

    Validate environment configuration files across local, staging, and production environments. Ensure required secrets, database URLs, API keys, and public variables are properly scoped and set. Use this skill when setting up environments, validating configuration, checking for missing secrets, auditing environment variables, ensuring proper scoping of public vs private vars, or troubleshooting environment issues. Trigger terms include env, environment variables, secrets, configuration, .env file, environment validation, missing variables, config check, NEXT_PUBLIC, env vars, database URL, API keys.
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66. ▌
    Opentelemetry Instrumentation · ultroncore

    Instrument applications with OpenTelemetry for distributed tracing, metrics, and logs. Covers auto-instrumentation, manual spans, context propagation, and exporting to Jaeger, Tempo, or OTLP backends.
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67. ▌
    Fastapi Pro · ultroncore bundle

    Build high-performance async APIs with FastAPI, SQLAlchemy 2.0, and Pydantic V2. Master microservices, WebSockets, and modern Python async patterns.
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68. ▌
    Pytest Asyncio · ultroncore

    Test Python async/await code with pytest-asyncio — native coroutine tests, async fixtures, and event loop configuration
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69. ▌
    Vitest Testing · ultroncore

    Write fast, Vite-native unit and integration tests with Vitest — Jest-compatible API with instant HMR
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70. ▌
    Micro Frontend Architecture · ultroncore

    Design and implement micro-frontend architectures using Module Federation, single-spa, or iframes. Covers team autonomy, routing, shared state, versioning, and deployment strategies.
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71. ▌
    Supabase Auth Ssr Setup · ultroncore bundle

    This skill should be used when configuring Supabase Auth for server-side rendering with Next.js App Router, including secure cookie handling, middleware protection, route guards, authentication utilities, and logout flow. Apply when setting up SSR auth, adding protected routes, implementing middleware authentication, configuring secure sessions, or building login/logout flows with Supabase.
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72. ▌
    Cost Optimization Cloud · ultroncore

    Systematically reduce cloud infrastructure costs — rightsizing EC2/RDS instances, Reserved Instances and Savings Plans, Spot instance patterns for fault-tolerant workloads, Kubernetes resource requests/limits tuning, S3 lifecycle policies, and architectural patterns like Lambda vs container trade-offs.
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73. ▌
    Agile Product Owner · ultroncore bundle

    Agile product ownership for backlog management and sprint execution. Covers user story writing, acceptance criteria, sprint planning, and velocity tracking. Use for writing user stories, creating acceptance criteria, planning sprints, estimating story points, breaking down epics, or prioritizing backlog.
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74. ▌
    Edge Computing Patterns · ultroncore

    Build and deploy edge computing applications using Cloudflare Workers, Deno Deploy, Vercel Edge Functions, and AWS Lambda@Edge. Covers edge caching, geolocation routing, A/B testing at the edge, and CDN integration.
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75. ▌
    Improve Codebase Architecture · ultroncore bundle

    Explore a codebase to find opportunities for architectural improvement, focusing on making the codebase more testable by deepening shallow modules. Use when user wants to improve architecture, find refactoring opportunities, consolidate tightly-coupled modules, or make a codebase more AI-navigable.
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76. ▌
    Android Reverse Engineering · ultroncore

    Reverse engineer Android APKs using jadx, apktool, frida, and static/dynamic analysis workflows to understand app internals, detect malware, or perform security research.
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77. ▌
    Git Guardrails Claude Code · ultroncore bundle

    Set up Claude Code hooks to block dangerous git commands (push, reset --hard, clean, branch -D, etc.) before they execute. Use when user wants to prevent destructive git operations, add git safety hooks, or block git push/reset in Claude Code.
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78. ▌
    Github Actions CI Workflow · ultroncore bundle

    Sets up comprehensive GitHub Actions CI/CD workflows for modern web applications. This skill should be used when configuring automated lint, test, build, and deploy pipelines, adding preview URL comments on pull requests, or optimizing workflow caching. Use when setting up continuous integration, deployment automation, GitHub Actions, CI/CD pipeline, preview deployments, or workflow optimization.
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79. ▌
    Webscraping Anti Detection · ultroncore

    Implement anti-detection techniques for web scraping — Playwright stealth with human-like mouse behavior (Bezier curves), fingerprint spoofing, proxy rotation with session persistence, CAPTCHA solving via 2captcha, and request rate management to avoid blocks.
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80. ▌
    Airflow Dag Patterns · ultroncore bundle

    Build production Apache Airflow DAGs with best practices for operators, sensors, testing, and deployment. Use when creating data pipelines, orchestrating workflows, or scheduling batch jobs.
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81. ▌
    Web Scraping Pipeline · ultroncore

    Build web scraping pipelines that feed clean content into Claude Code workflows. Use when Claude needs to ingest web content, crawl sites for RAG, or extract structured data from pages. Trigger when users mention web scraping, Firecrawl, crawling websites, content ingestion, or extracting data from URLs.
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82. ▌
    Msw API Mocking · ultroncore

    Intercept and mock HTTP requests at the network level with MSW (Mock Service Worker) for tests and development
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83. ▌
    Release Manager · ultroncore bundle

    Use when the user asks to plan releases, manage changelogs, coordinate deployments, create release branches, or automate versioning.
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84. ▌
    Typescript Advanced Patterns · ultroncore

    Master advanced TypeScript patterns including discriminated unions, template literal types, conditional types, mapped types, branded types, variance, and builder patterns. Covers type-level programming, infer keyword, and runtime-safe type narrowing.
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85. ▌
    React Native Best Practices · ultroncore bundle

    Software Mansion's best practices for production React Native and Expo apps on the New Architecture. MUST USE before writing, reviewing, or debugging ANY code in a React Native or Expo project. If the working directory contains a package.json with react-native, expo, or expo-router as a dependency, this skill applies. Trigger on: any code task in a React Native/Expo project, 'React Native', 'Expo', 'New Architecture', 'Reanimated', 'Gesture Handler', 'react-native-svg', 'ExecuTorch', 'react-native-audio-api', 'react-native-enriched', 'Worklet', 'Fabric', 'TurboModule', 'WebGPU', 'react-native-wgpu', 'TypeGPU', 'GPU shader', 'WGSL', 'svg', 'animation', 'gesture', 'audio', 'rich text', 'AI model', 'multithreading', 'chart', 'vector', 'image filter', 'shared value', 'useSharedValue', 'runOnJS', 'scheduleOnRN', 'thread', 'worklet', or any question involving UI, graphics, native modules, or React Native threading and animation behavior. Also use when a more specific sub-skill matches.
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86. ▌
    Twitter Algorithm Optimizer · ultroncore

    Analyze and optimize tweets for maximum reach using Twitter's open-source algorithm insights. Rewrite and edit user tweets to improve engagement and visibility based on how the recommendation system ranks content.
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87. ▌
    Edc Vegas Notion 30 Skill Pack · ultroncore

    EDC Vegas Notion 30 Skill Pack
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88. ▌
    LLM Routing And Fallback · ultroncore bundle

    Route LLM API calls through cost-efficient proxy layers with automatic model fallback, budget caps, and retry logic. Use when building systems that need to switch between Claude models, fall back from expensive to cheaper models, or unify multiple LLM providers behind one interface. Trigger when users mention litellm, model routing, API cost reduction, model fallback, or budget-aware inference.
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89. ▌
    Competitive Teardown · ultroncore bundle

    Analyzes competitor products and companies by synthesizing data from pricing pages, app store reviews, job postings, SEO signals, and social media into structured competitive intelligence. Produces feature comparison matrices scored across 12 dimensions, SWOT analyses, positioning maps, UX audits, pricing model breakdowns, action item roadmaps, and stakeholder presentation templates. Use when conducting competitor analysis, comparing products against competitors, researching the competitive landscape, building battle cards for sales, preparing for a product strategy or roadmap session, responding to a competitor's new feature or pricing change, or performing a quarterly competitive review.
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90. ▌
    Gitnexus Obsidian Github · ultroncore

    Unified workflow linking GitHub repos, GitNexus knowledge graphs, and Obsidian vault notes for seamless project intelligence
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91. ▌
    Differential Security Review · ultroncore bundle

    Analyze code diffs and PRs specifically for security implications, identifying newly introduced vulnerabilities and security regressions.
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92. ▌
    Security Hardening Checklist · ultroncore bundle

    This skill should be used when the user requests to audit, check, or improve application security by analyzing security headers, cookie configuration, RLS policies, input sanitization, rate limiting, and other security measures. It generates a comprehensive security audit report with actionable recommendations. Trigger terms include security audit, security check, harden security, security review, vulnerability check, security headers, secure cookies, input validation, rate limiting, security best practices.
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93. ▌
    Ab Testing Statistics AI Ml Stub · ultroncore

    Overview
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94. ▌
    Sentence Transformers Finetuning · ultroncore

    Fine-tune sentence-transformers models for custom embedding tasks using contrastive and distillation training
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95. ▌
    Terraform Code Generation · ultroncore bundle

    Expert Terraform infrastructure-as-code generation with HCL, provider ecosystems, and cloud infrastructure patterns.
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96. ▌
    Async Python Patterns · ultroncore bundle

    Comprehensive guidance for implementing asynchronous Python applications using asyncio, concurrent programming patterns, and async/await for building high-performance, non-blocking systems.
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97. ▌
    Database Cdc Patterns · ultroncore

    Implement Change Data Capture (CDC) to stream database changes as events. Covers Debezium with Kafka, PostgreSQL logical replication, Supabase Realtime, event sourcing via CDC, and building downstream read models from database change streams.
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98. ▌
    Webassembly Rust · ultroncore

    Compile Rust code to WebAssembly for high-performance browser and server-side WASM modules. Covers wasm-pack, wasm-bindgen, JavaScript interop, web workers, WASI for server-side WASM, and performance optimization for CPU-intensive browser workloads.
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99. ▌
    Auth Route Protection Checker · ultroncore bundle

    This skill should be used when the user requests to audit, check, or generate authentication and authorization protection for Next.js routes, server components, API routes, and server actions. It analyzes existing routes for missing auth checks and generates protection logic based on user roles and permissions. Trigger terms include auth check, route protection, protect routes, secure endpoints, auth middleware, role-based routes, authorization check, api security, server action security, protect pages.
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100. ▌
     Role Permission Table Builder · ultroncore bundle

     Generates comprehensive role-based permission matrices in markdown or SQL format for pages, components, and data access patterns. This skill should be used when designing authorization systems, documenting permissions, creating RBAC tables, or planning access control. Use for RBAC, role permissions, access control, authorization matrix, permission mapping, or security policies.
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