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Found 7,014 Skills
Backend architecture patterns, API design, database optimization, and server-side best practices for Node.js, Express, and Next.js API routes.
Comprehensive codebase research skill. Documents codebase as-is by spawning parallel sub-agents and synthesizing findings into research documents.
Researches how the industry solves a defined issue, collects references from engineering blogs, open-source projects, and technical articles, then produces a design document with industry baseline, research summary, design goals, non-goals, and proposed design. Use when an issue definition exists in docs/issues/ and a concrete design is needed before implementation begins.
Expert guidance for TanStack DB reactive client-side database with collections, live queries, optimistic mutations, and sync engines (ElectricSQL, RxDB, PowerSync). Use when user says "tanstack db", "/tanstack-db", "local-first", "live query", "collection", "optimistic mutation", "electric", "sync engine", or asks about reactive data, offline-first, or real-time sync.
Optimize application performance and scalability. Use when investigating slow applications, scaling bottlenecks, or improving response times. Use for profiling, caching, database optimization, frontend performance, and backend tuning.
Use this skill whenever the user asks to analyze, understand, or survey an entire project, codebase, or any collection of files. Trigger phrases include "analyze a large file", "process multiple files", "comprehend this problem", "take a look at these files", "familiarize yourself with this project", or any similar request, however phrased. Also activate when the task involves processing context that exceeds what can be reasoned about in a single pass, when encountering any input larger than ~50KB that requires detailed analysis, or when the user mentions "context comprehension" or "recursive comprehension". This skill TAKES PRIORITY over your default explore subagents for any project-wide or codebase-wide analysis task.
Implement Stripe Billing for subscriptions, recurring payments, invoicing, and usage-based pricing. Use when: (1) Creating subscription plans (flat, tiered, per-seat, usage-based), (2) Managing subscription lifecycle (trials, upgrades, downgrades, cancellations), (3) Generating and customizing invoices, (4) Implementing metered/usage-based billing, (5) Setting up customer portal for self-service, (6) Configuring dunning and revenue recovery, (7) Applying coupons and promotion codes. Triggers on: subscription, recurring billing, invoice, usage-based, metered billing, SaaS pricing, subscription plan, trial, dunning, proration, customer portal, coupon, promotion code, billing cycle.
Analyze codebase structure, dependencies, changes, and cross-agent handoffs. Use when user asks about project structure, where code is located, how files connect, what changed, how to resume work, or before starting any coding task.
Whole-codebase vulnerability analysis leveraging 1M context window. Loads entire project source, runs deep security analysis in a single pass. Opus 4.6 found 500 zero-day vulnerabilities in pre-release testing — this skill weaponizes that capability.
Edit and enhance images and videos with AI via muapi.ai — prompt-based editing, upscaling, background removal, face swap, lipsync, video effects, and more
Bounded codebase exploration and architecture mapping. Use when discovery is needed before implementation. Do NOT use for broad refactoring — use do-plan instead.
Implement SwiftUI navigation patterns including NavigationStack, NavigationSplitView, sheet presentation, tab-based navigation, and deep linking. Use when building push navigation, programmatic routing, multi-column layouts, modal sheets, tab bars, universal links, or custom URL scheme handling.