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DEPRECATED umbrella Skill (backward compatibility). Use only when release work spans deployment + cache headers + versioning + rollback. Prefer focused `openwebf-release-cdn-deploy` and `openwebf-release-versioning-rollback` Skills.

Coordinates complete comparison of 2 products with parallel subagents and result aggregation. Use when user asks to 'compare X vs Y', 'compare two products', 'research products for comparison', mentions comparing items for purchase decision, or requests product analysis. Handles product validation, cache checking, parallel data collection (specs, reviews, pricing), and comprehensive report generation.

Detects project type, package manager, and monorepo structure. Returns correct commands for test/build/lint/dev. Run at project initialization and cache results in state. Use before running any build/test commands.

Delegates coding tasks to Coco CLI (Codebase Copilot) for prototyping, debugging, and code review. Use when needing algorithm implementation, bug analysis, or code quality feedback. Supports multi-turn sessions via SESSION_ID.

Expert assistant for managing Finnish/English content translations in the KR92 Bible Voice project. Use when syncing topic translations, managing translation cache, validating translation completeness, or importing/exporting CSV translations.

Redis caching strategies for MCP servers - cache invalidation, TTL management, pub/sub patterns, and performance optimization

Implement authentication and authorization with Better Auth - a framework-agnostic TypeScript authentication framework. Features include email/password authentication with verification, OAuth providers (Google, GitHub, Discord, etc.), two-factor authentication (TOTP, SMS), passkeys/WebAuthn support, session management, role-based access control (RBAC), rate limiting, and database adapters. Use when adding authentication to applications, implementing OAuth flows, setting up 2FA/MFA, managing user sessions, configuring authorization rules, or building secure authentication systems for web applications.

Prompt caching for Claude API to reduce latency by up to 85% and costs by up to 90%. Activate for cache_control, ephemeral caching, cache breakpoints, and performance optimization.

Run multiple agent tasks in parallel cloud sandboxes with real-time progress monitoring, achieving 2x throughput vs sequential execution. Use for multi-repo tasks, independent bug fixes, concurrent feature development, or team workflows requiring parallel workstreams. Supports session management, result aggregation, and local teleport. Triggers on "parallel tasks", "multiple repos", "concurrent work", "parallel sessions", "multi-repo".

Hash-based data structures and techniques including frequency counting, duplicate detection, and LRU cache implementation.

Multi-level caching strategies for LLM applications - semantic caching (Redis), prompt caching (Claude/OpenAI native), cache hierarchies, cost optimization, and Langfuse cost tracking with hierarchical trace rollup for 70-95% cost reduction

Designs Redis caching strategies for Braiins API data, optimizing fordata freshness vs. API rate limits and response latency.

Uses Redis for caching, sessions, pub/sub, and data structures with Node.js. Use when implementing caching, session storage, real-time messaging, or high-performance data storage.

Teach Cache Components model with 'use cache' directive in Next.js 16. Use when implementing caching, optimizing performance, working with dynamic data, or migrating from Next.js 15 caching patterns.

Celery 5.3+ distributed task queue with Beat scheduler, Redis/RabbitMQ brokers, workflow patterns, and FastAPI integration. Use for background jobs, periodic tasks, and async processing.

Redis data structures and commands including strings, lists, hashes, sets, sorted sets, streams, and transactions for high-performance caching and real-time applications.

Comprehensive audit of Expo/React Native app API integration layer. Use when asked to: (1) Review API interactions, auth handling, or token management, (2) Find hardcoded data or screens bypassing API, (3) Verify user interactions properly sync to backend, (4) Analyze offline behavior and caching, (5) Audit Orval/OpenAPI code generation, (6) Check for API security issues. Supports TanStack Query, Zustand, axios, Expo Router, expo-secure-store, and expo-constants patterns.

Redis best practices including data modeling, caching patterns, and performance optimization.

Human-in-the-loop iterative development. Use when requirements will emerge during implementation, decisions need human approval at each step, or work will span multiple sessions with frequent feedback loops. Creates problem statement, decisions log, runbook, and progress tracking.

IndexedDB patterns for local-first state persistence using the idb library. Use when implementing features that require persistent state across navigation and sessions. Covers data modeling, defaults, CRUD operations, state managers, and reset patterns. Integrates with web-components for reactive UI updates.