j4flmao
- 645 skills
- 0 followers
- 9 hours ago last updated
- ▌ Quality Property Based Testing · j4flmao bundleUse when the user asks about property-based testing, fuzzing, generative testing, QuickCheck, fast-check, invariant testing, or random testing. Do NOT use for: example-based unit testing (quality-unit-testing), or integration testing (quality-integration-testing).
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- ▌ AI Agent Core Architectures · j4flmaoFundamental principles of AI Agent cognitive loops, contrasting ReAct and Plan-and-Solve paradigms.
- ▌ Backend Audit Logging · j4flmao bundleUse this skill when the user says 'audit log', 'audit trail', 'compliance logging', 'tamper-evident log', 'immutable log', 'audit table', 'change tracking', 'who changed what', 'data provenance', 'audit events', 'reporting log'. This skill implements immutable audit trails for compliance (SOC 2, SOX, HIPAA, GDPR). Applies to any backend stack. Do NOT use for: application logging (error logs, debug logs), metrics, or tracing.
- ▌ Backend Auth Patterns · j4flmao bundleUse this skill when the user says 'auth', 'authentication', 'authorization', 'JWT', 'OAuth', 'RBAC', 'permissions', 'login', 'session', 'refresh token', 'guard', 'middleware auth', or when implementing or reviewing authentication and authorization. This skill enforces: JWT structure and validation, refresh token rotation, OAuth2/OIDC flows, RBAC vs ABAC decision, middleware placement, and password security. Applies to any backend stack. Do NOT use for: specific OAuth provider implementation details, frontend auth UI, or passwordless login flows.
- ▌ Backend Authorization · j4flmao bundleUse this skill when the user says 'authorization', 'access control', 'RBAC', 'ABAC', 'ReBAC', 'permissions', 'role', 'policy', 'Casbin', 'Cerbos', 'permission delegation', 'temporary access', 'break glass', 'super admin', 'JIT elevation', 'role hierarchy', or when designing or implementing authorization for any backend application. This skill covers: authorization model selection (RBAC/ABAC/ReBAC), permission architecture design, role hierarchy and inheritance, admin/master admin patterns, temporary JIT elevation, permission delegation, fine-grained ABAC policies, policy engine integration (Casbin, OPA, Cerbos, Permit.io), and authorization testing. Do NOT use for: authentication flows, JWT implementation, OAuth2/OIDC configuration, session management, or frontend route guards.
- ▌ Backend Cqrs Patterns · j4flmaoUse this skill when the user says 'CQRS', 'command query segregation', 'separate read write model', 'command model', 'query model', 'read model', 'write model', 'materialized view', 'command handler', 'query handler'. This skill enforces: strict command/query separation, write model optimized for consistency, read model optimized for performance, eventual consistency between models, command validation before execution. Applies to any backend stack. Do NOT use for: simple CRUD applications, event sourcing (use event-sourcing skill), or microservices decomposition (use microservices skill).
- ▌ Backend Feature Flags · j4flmao bundleUse this skill when implementing feature flags, canary releases, A/B testing, or kill switches. This skill enforces: flag ownership with removal date, cached evaluation, kill switches for critical features, safe defaults (off). Applies to LaunchDarkly, Unleash, Flagsmith, or custom flag systems. Do NOT use for: permanent configuration, environment variables, or build-time feature toggles.
- ▌ Backend Grpc Patterns · j4flmao bundleUse this skill when the user says 'gRPC', 'protobuf', 'protocol buffers', 'streaming RPC', 'unary call', 'server streaming', 'client streaming', 'bidirectional streaming', 'gRPC interceptor', 'gRPC error handling', 'protobuf schema', 'service definition', 'RPC design', or when designing gRPC APIs. This skill enforces consistent protobuf schema conventions, streaming patterns, interceptor chains, and structured error handling for gRPC services. Applies to any backend stack using gRPC. Do NOT use for: REST API design, GraphQL schema, message queue design, or frontend data fetching.
- ▌ Backend Message Queue · j4flmao bundleUse this skill when the user says 'message queue', 'Kafka', 'RabbitMQ', 'SQS', 'pub-sub', 'event bus', 'consumer group', 'topic', 'queue', 'at-least-once', 'exactly-once', 'idempotent consumer', 'event sourcing', 'dead letter queue', 'DLQ', 'message broker', 'producer', 'consumer', 'event-driven', 'async processing', or when designing asynchronous messaging. This skill enforces consistent messaging patterns: broker selection, topic/queue topology, message schema, consumer groups, retry, DLQ, and idempotency. Applies to any backend stack. Do NOT use for: gRPC streaming, WebSocket real-time, REST API design, or database CDC.
- ▌ Microservices · j4flmao bundleUse this skill when designing microservices architecture — decomposition, communication, data, discovery, observability, deployment. This skill enforces: bounded context decomposition, database-per-service ownership, saga patterns for distributed transactions, strangler fig migration. Do NOT use for: monolith application design, frontend architecture, single-service API design.
- ▌ Backend Multi Tenancy · j4flmao bundleUse this skill when the user says 'multi-tenancy', 'SaaS', 'tenant isolation', 'row-level security', 'DB per tenant', 'schema per tenant', 'tenant provisioning', 'tenant migration', 'multi-tenant database', 'tenant context'. This skill implements tenant isolation strategies: row-level, schema-per-tenant, and DB-per-tenant with provisioning and migration. Applies to any backend stack. Do NOT use for: single-tenant applications, IAM/authentication, or RBAC within a single organization.
- ▌ Rate Limiting 2 · j4flmao bundleComprehensive skill definitions for rate-limiting. Includes multiple references and diagrams.
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- ▌ Design Information Architecture · j4flmao bundleUse when the user asks about information architecture, sitemaps, user flows, content hierarchy, navigation design, content organization, labeling, or taxonomy. Do NOT use for: UX research (design-ux-research), visual design (design-visual-design), or prototyping (design-prototyping).
- ▌ Checkout Optimization · j4flmaoStrategies for 1-click checkout, performance, and reducing cart abandonment.
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- ▌ Enterprise Integration Patterns · j4flmao bundleUse this skill when designing enterprise system integrations with message routing, protocol transformation, and error handling. This skill enforces: anti-corruption layers, SLA-defined integrations, dead letter queue monitoring. Do NOT use for: in-process function calls, simple REST API clients, database replication tools.
- ▌ Frontend CSS Strategy · j4flmao bundleUse this skill when the user says 'CSS strategy', 'CSS Modules', 'CSS-in-JS', 'utility-first CSS', 'Tailwind CSS', 'styled-components', 'Emotion', 'CSS organization', 'CSS architecture', 'CSS approach', 'BEM', 'CSS naming convention', 'CSS preprocessor', 'Sass', 'PostCSS', 'styled-jsx', 'Linaria', 'vanilla-extract', 'CSS decision', 'styling approach'. This skill helps choose the right CSS approach based on project size, team composition, performance requirements, and build tooling. Works with any frontend framework. Do NOT use for: component design (use design-system skill), Tailwind-specific questions (use tailwind-css skill), or design token setup (use theming skill).
- ▌ Frontend Tailwind CSS · j4flmao bundleUse this skill when the user says 'tailwind', 'utility css', 'design tokens', 'responsive tailwind', 'tailwind config', 'custom theme'. This skill enforces utility-first CSS principles, design token extraction, responsive breakpoint patterns, and Tailwind config best practices. Applies to any frontend stack.
- ▌ Audio Engine · j4flmao bundleExpert game audio engine — DSP graph, buses and mixing, spatialization/HRTF, streaming decode, ducking, effects (reverb/delay) and voice/performance budgets.
- ▌ Asset Pipeline · j4flmao bundleExpert game asset pipeline — asset system lifecycle, import/cook pipeline, streaming & hot-reload, reference counting, virtual filesystem, and shader pipeline management.
- ▌ Rdma Rocev2 Hardware Datapath · j4flmaoHardware meta-skill analyzing RDMA & RoCEv2 datapath for zero-copy GPU-to-GPU interconnects over converged ethernet fabrics.
- ▌ Smart Contract Auditor · j4flmaoPersona definition for Staff-level Smart Contract Auditor. Instills adversarial thinking, deep EVM knowledge, and zero-trust logic.
- ▌ Database Sharding And Scaling · j4flmaoBest practices for sharding algorithms (Consistent Hashing) and scaling SQL databases.
- ▌ Spring Boot Architecture · j4flmao bundleUse this skill when the user says 'Spring Boot structure', 'Spring architecture', 'Spring Boot clean arch', 'Spring layered', 'Spring hexagonal', 'Spring WebFlux', 'Spring Data', 'Spring Boot folder', or when building a Spring Boot application. This skill enforces: package-by-feature (not by layer), hexagonal architecture with ports and adapters, Spring stereotypes correctly applied (@Repository in infrastructure, not domain), constructor injection (no @Autowired on fields), and MVC vs WebFlux decision guide. Requires Spring Boot (pom.xml or build.gradle). Do NOT use for: Kotlin Multiplatform, non-Spring Java, or frontend Angular.
- ▌ Backend API Versioning · j4flmao bundleUse this skill when the user says 'API versioning', 'version strategy', 'URI versioning', 'header versioning', 'content negotiation', 'accept header', 'breaking change', 'API migration', 'deprecate endpoint', 'sunset endpoint'. This skill manages API version transitions using URI, header, or content-negotiation strategies. Applies to any backend stack. Do NOT use for: database schema versioning, client SDK versioning, or infrastructure versioning.
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- ▌ Backend Event Sourcing · j4flmao bundleUse this skill when the user says 'event sourcing', 'event store', 'event stream', 'event sourced', 'rehydrate from events', 'event replay', 'projection rebuild', 'event log', 'append-only log', 'event history'. This skill enforces: events as the single source of truth, current state derived from event replay, append-only event store, immutable events, event versioning, projection rebuild from scratch. Applies to any backend stack. Do NOT use for: simple audit logging, message queues, or CQRS without event sourcing.
- ▌ Blockchain Management · j4flmao bundleUse this skill when asked about blockchain project management, DAO governance, multi-sig operations, treasury management, tokenomics design, and web3 project methodology. Languages: Solidity, TypeScript, Python. Covers DAO governance frameworks (Compound Governor, Aave, Snapshot, Tally), multi-sig wallet operations (Gnosis Safe, Timelock, proposal lifecycle), treasury management (vesting, streaming, diversification, yield), tokenomics design (supply schedule, inflation, staking rewards, emission curve), and web3-specific project methodology (audit-first, progressive decentralization, community governance). For standard management practices (agile, scrum, kanban, risk management, stakeholder management, OKR/KPI), reference shared skills from skills/management/. Do NOT use for: standard project management (use skills/management/pm), team operations (use skills/management/agile-scrum-kanban), cost analysis (use skills/management/cost-benefit), or technical blockchain development (use other blockchain-* skills).
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- ▌ Owasp Web Security · j4flmaoTheoretical mechanics of critical web vulnerabilities, static analysis, and secure architecture remediation.
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- ▌ Frontend Accessibility · j4flmao bundleUse this skill when the user says 'accessibility', 'a11y', 'WCAG', 'screen reader', 'ARIA', 'keyboard navigation', 'color contrast', 'focus management', 'semantic HTML', or when ensuring frontend applications are accessible. This skill enforces: semantic HTML first (no div soup), ARIA only when native semantics are insufficient, WCAG 2.2 AA compliance, and automated a11y testing in CI. Works with any frontend framework. Do NOT use for: backend API accessibility, database design, or performance optimization.
- ▌ Frontend Bundler Tools · j4flmao bundleUse this skill when the user says 'bundler', 'Vite', 'Webpack', 'Turbopack', 'build tool', 'bundle config', 'build optimization', 'tree shaking', 'code splitting', 'lazy loading', 'chunk splitting', 'asset bundling', 'build performance', 'bundler migration'. Configure and optimize frontend build tooling. Do NOT use for: framework-specific builds or deployment pipelines.
- ▌ Frontend Data Fetching · j4flmao bundleUse this skill when the user says 'data fetching', 'TanStack Query', 'SWR', 'React Query', 'server state', 'API client', 'data fetching pattern', 'cache invalidation', 'optimistic update', 'pagination data', 'infinite scroll', 'stale-while-revalidate'. Design data fetching layer for frontend apps. Do NOT use for: backend API design or database queries.
- ▌ Frontend Design System · j4flmao bundleUse this skill when the user says 'design system', 'design tokens', 'component library', 'theme', 'colors', 'typography system', 'spacing system', 'component API design', 'variant system', or when creating or extending a frontend design system. This skill enforces: three-tier token hierarchy (primitive, semantic, component), CSS custom properties as the token layer, CVA for component variants, component API with max 10 props, and dark mode via semantic token swap. Works with React, Vue, Angular. Do NOT use for: backend API design, database schema, or individual component implementation.
- ▌ Frontend Feature Flags · j4flmao bundleUse this skill when the user says 'feature flags', 'LaunchDarkly', 'split testing', 'A/B testing', 'gradual rollout', 'canary release', 'feature toggle', 'flag provider', 'targeting rule', or when implementing frontend feature flags. This skill enforces: typed flag definitions, provider-agnostic abstraction layer, gradual rollout with percentage targeting, and A/B test assignment tracking. Works with LaunchDarkly, Split.io, Flagsmith, or custom flag backends. Do NOT use for: backend-only flag evaluation, server-side config management, infrastructure provisioning.
- ▌ Frontend Form Handling · j4flmao bundleUse this skill when the user says 'form handling', 'form validation', 'React Hook Form', 'Formik', 'form state', 'form submission', 'field validation', 'form error', 'controlled input', 'uncontrolled input', 'form schema', 'Zod validation', 'form dirty', 'field array'. Implement client-side forms with validation, complex fields, and UX patterns. Do NOT use for: backend validation or API design.
- ▌ Microfrontend · j4flmao bundleUse this skill when the user asks about microfrontend, Module Federation, Web Components, iframe integration, shared dependencies, or cross-app communication between frontend applications.
- ▌ Input Systems · j4flmao bundleExpert game input systems — device abstraction, action mapping, sampling vs events, text/IME, touch/gestures, haptics and input-to-game timing.
- ▌ Math Foundation · j4flmao bundleExpert game engine math foundation — SIMD vectors/matrices, quaternions, transforms, interpolation, collision primitives, curves and numerical stability under real-time budgets.
- ▌ Mobile Crash Reporting · j4flmao bundleUse this skill when the user says 'crash report', 'crashlytics', 'sentry', 'symbolication', 'dsym', 'breadcrumb', 'non-fatal', 'user context', 'error tracking'. This skill enforces proper crash reporting patterns: SDK setup, symbolication, breadcrumbs, non-fatal error capture, user context, and release health monitoring. Applies to iOS, Android, Flutter, and React Native.
- ▌ Mobile In App Purchase · j4flmao bundleUse this skill when the user says 'in-app purchase', 'IAP', 'subscription', 'consumable', 'StoreKit', 'Play Billing', 'receipt validation', 'restore purchase'. This skill enforces proper purchase flow patterns: product configuration, purchase flow, receipt validation, subscription management, and restore handling. Applies to iOS, Android, Flutter, and React Native.
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- ▌ Multi Agent Topology · j4flmaoFirst principles of AI societal structures and multi-agent interaction paradigms.
- ▌ Event Driven Architecture · j4flmaoBest practices for Kafka/RabbitMQ message brokering and event sourcing.
- ▌ Sass Machine Code · j4flmaoDeep dive into NVIDIA binary machine code (SASS), analyzing clock cycles, pipeline stalls, warp scheduling, and the FFMA instruction pipeline.
- ▌ Agent Observability · j4flmao bundleComprehensive skill for tracing reasoning paths, debugging non-deterministic agent loops, and monitoring agent behavior in production systems. Covers reasoning trace visualization, OpenTelemetry integration for agent systems, distributed tracing across multi-agent chains, decision audit logging, performance profiling, anomaly detection, cost tracking and optimization, and latency analysis for AI agent deployments.
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- ▌ API GRAPHQL Federation · j4flmao bundleUse when the user asks about GraphQL Federation, Apollo Federation, federated schema, subgraphs, supergraph, schema composition, @key/@requires/@external directives, or distributed GraphQL architecture. Do NOT use for: basic GraphQL schema design (backend-graphql-patterns), or single-service GraphQL APIs.
- ▌ API Product Management · j4flmao bundleUse when the user asks about API as product, API product management, API strategy, API monetization, developer portal, API documentation portal, API deprecation, versioning strategy, or API lifecycle management. Do NOT use for: API implementation (backend-api-design), API documentation generation (api-documentation), or technical API specification (backend-openapi-documentation).
- ▌ Fundamental Truth Statistical Mechanics Diffusion · j4flmaoThe thermodynamic and statistical mechanical basis of generative intelligence. Langevin dynamics, SDEs, and the physics of the forward/reverse noise processes.
- ▌ Neuromorphic Computing Fundamentals · j4flmaoMaster the physical hardware limits beyond classical silicon with Spiking Neural Networks (SNNs), Memristors, and asynchronous event-driven computing.
- ▌ Tpu Systolic Arrays · j4flmaoHardware meta-skill detailing Google's TPU architecture, specifically the Matrix Multiplication Unit (MXU) and Systolic Arrays.
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- ▌ Extreme Quantization Mastery · j4flmaoAdvanced sub-8-bit quantization methodologies, including AWQ, GPTQ, and FP8 utilization on Hopper architectures.
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- ▌ Quantum Error Correction · j4flmaoSurface codes, syndrome measurement, and topological qubits mechanics.
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- ▌ Quantum Error Correction Fundamentals · j4flmaoMaster the absolute final frontier of practical quantum computing, Surface Codes, and logical vs physical qubits.
- ▌ Tensorrt Optimization · j4flmaoAuthoritative guide to inference optimization using TensorRT, focusing on quantization, layer fusion, and memory bandwidth optimization for LLMs.
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- ▌ Chaos Engineering 2 · j4flmaoFault injection mechanics at network/kernel layer and blast radius containment.
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- ▌ Microservice Design Patterns · j4flmaoHardcore microservice patterns including SAGA, CQRS, and Event Sourcing mechanics.
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- ▌ Observability And Scaling · j4flmaoPrometheus TSDB compaction and OpenTelemetry trace context propagation.
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- ▌ Ml Nlp · j4flmao bundleUse this skill when building NLP pipelines, applying spaCy for tokenization/NER/POS, using HuggingFace Transformers for text classification/sentiment/summarization/QA, or fine-tuning transformer models. This skill enforces: NLP pipeline design (tokenization, normalization, POS, NER, parsing), framework selection (spaCy vs HuggingFace vs NLTK), model selection by task, fine-tuning strategy (full vs PEFT/LoRA), inference optimization. Do NOT use for: audio/speech processing, computer vision with text (use ml-computer-vision), traditional ML on text features (use ml-classical-ml), or prompt engineering (use ai-prompt-engineering).
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- ▌ Desktop Qt · j4flmao bundleUse when the user asks about cross-platform Qt application development with QtWidgets, QtQuick/QML, Qt Creator, signals and slots, or Qt deployment. Do NOT use for: KDE-specific (desktop-kde), or non-Qt desktop frameworks.
- ▌ AWS · j4flmao bundleUse this skill when the user says 'AWS', 'EC2', 'S3', 'RDS', 'Lambda', 'VPC', 'IAM', 'Well-Architected', 'cost optimization', 'CloudFormation', 'Terraform AWS', 'EKS', 'ECS', 'ELB', 'Route53', 'CloudFront', 'WAF', 'Auto Scaling', 'Security Group', 'NACL', 'AWS CLI', 'AWS SDK', 'boto3', 'aws-vault', 'SSM', 'Secrets Manager', 'KMS', 'CloudWatch'. Covers: compute selection (EC2 vs Lambda vs ECS vs EKS), IAM policies, networking patterns, Well-Architected Framework, cost optimization, security best practices, multi-account strategy. Do NOT use for: GCP, Azure, Alibaba Cloud.
- ▌ Devops GCP · j4flmao bundleTrigger: "GCP", "Google Cloud", "Google Kubernetes Engine", "GKE", "Cloud Run", "Cloud Functions", "Cloud Storage", "Cloud SQL", "Terraform GCP", "gcloud CLI", "Cloud Build" Exclusion: Not for AWS or Azure -- use those specific skills.
- ▌ Godot · j4flmaoExpert game development with Godot Engine - nodes and scenes, GDScript/C#/GDExtension, the renderer (Forward+/Mobile/Compatibility), physics (GodotPhysics/Jolt), animation, UI (Control), and performance.
- ▌ Unity · j4flmaoExpert game development with Unity - engine architecture, C# scripting, DOTS ECS, rendering (URP/HDRP), physics, animation, UI, asset pipeline, multiplayer, and performance.
- ▌ IOS · j4flmao bundleUse this skill when the user asks about iOS development, Swift, SwiftUI, UIKit, iOS architecture, MVVM, Coordinator, Core Data, SwiftData, or iOS testing.
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- ▌ Bun · j4flmao bundleUse this skill when building with Bun runtime — Bun APIs, testing, package management, shell scripting, hot reload, SQLite, file I/O. This skill enforces: built-in APIs over npm equivalents, Bun test runner, bun install speed optimization, Bun.shell for scripts. Do NOT use for: Node.js-specific APIs (process.nextTick), Deno-specific features, browser JavaScript.
- ▌ Desktop Gtk · j4flmao bundleUse when the user asks about GTK (GTK3, GTK4) application development, GtkWidget, GtkBuilder UI files, CSS styling for GTK, or cross-platform GTK development. Do NOT use for: GNOME-specific patterns (desktop-gnome), or KDE/Qt (desktop-kde, desktop-qt).
- ▌ Desktop Uwp · j4flmao bundleUse when the user asks about Universal Windows Platform (UWP) development, WinRT APIs, XAML UWP, Windows Store apps, or UWP lifecycle. Do NOT use for: WinUI 3 (desktop-winui3), WPF (desktop-wpf), or WinForms (desktop-winforms).