j4flmao

@j4flmao source repo

645 skills
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8 hours ago last updated

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Vue Nuxt · j4flmao bundle
Use this skill when the user says 'Nuxt', 'Nuxt 3', 'Nuxt structure', 'Nuxt composables', 'Nuxt server routes', 'useFetch', 'useAsyncData', 'Nuxt layers', 'Nuxt architecture', or when building a Nuxt 3 application. This skill enforces: directory-based routing in pages/, useFetch for data fetching (preferred over useAsyncData), server routes in server/api/, auto-import from components/ and composables/, layouts with definePageMeta, and Nuxt layers for shared code across projects. Requires Nuxt 3 (nuxt.config.ts). Do NOT use for: plain Vue 3, Vite-only Vue, or React/Next.js.

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Management Hiring · j4flmao bundle
Use this skill when the user says 'hiring', 'interviewing', 'technical interview', 'coding interview', 'system design interview', 'interview rubric', 'candidate assessment', 'interview debrief', 'offer decision', 'interview process', 'phone screen', 'onsite interview', 'behavioral interview', 'HackerRank', 'CodeSignal', 'interview pipeline', 'candidate evaluation', 'interview scoring', 'anti-bias hiring'. This skill enforces: structured interview rubrics with scoring criteria per skill dimension, multi-format technical assessment (coding, system design, debugging), behavioral evaluation aligned to company values using STAR method, consistent debrief process with calibration, data-driven offer decisions using decision matrix, anti-bias practices, and positive candidate experience. Do NOT use for: performance reviews, career development, or team structuring.

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Planning Bdd Atdd · j4flmao bundle
Use this skill when the user asks about BDD, ATDD, behavior-driven development, acceptance test-driven development, Gherkin, Cucumber, SpecFlow, specification by example, executable specifications, living documentation, three amigos, example mapping, or acceptance criteria refinement. Covers: Gherkin syntax and deep features (Scenario Outline, Data Tables, Doc Strings), Specification by Example methodology, BDD tools (Cucumber, SpecFlow, Behave, JBehave), ATDD workflow with three amigos and example mapping. Do NOT use for: unit testing (unit-testing), integration testing (integration-testing), or manual test planning.

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AI Saas Playbook · j4flmao
Authoritative playbook for building a full-stack AI SaaS platform integrating LangChain, Kafka, and Stripe.

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Product Analytics · j4flmao bundle
Expertise in product analytics tools (Mixpanel/Amplitude) and User Retention metrics.

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Crdts · j4flmao
Conflict-free Replicated Data Types (CRDTs)

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Ruby Rails · j4flmao bundle
Use this skill when building Ruby on Rails applications — MVC, ActiveRecord, service objects, API mode, background jobs, and testing. This skill enforces: thin controllers, service objects for business logic, ActiveRecord query best practices, Rails API mode conventions, and RSpec testing patterns. Requires Rails 7+ and Ruby 3.1+. Do NOT use for: Sinatra, Rack apps, Hanami, or non-Rails Ruby projects.

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Scala Play · j4flmao bundle
Use this skill when building Scala Play Framework applications — MVC architecture, Slick database access, JSON handling with Play JSON, async actions, and testing. This skill enforces: thin controllers, service layer, Slick for database, Play JSON (reads/writes) for serialization, Future-based async actions. Requires Scala 2.13+ or 3 and Play Framework 3.x. Do NOT use for: Akka HTTP, http4s, ZIO, or non-Play Scala backends.

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Data Modeling · j4flmao bundle
Use this skill when designing relational or graph data models — 3NF, star schema, Data Vault, property graphs, RDF graphs, table inheritance, temporal tables, graph traversal patterns, knowledge graphs. This skill enforces: normalization 3NF by default, denormalization only when performance-proven, surrogate keys over natural keys, graph modeling with node/edge design patterns, and schema-first design. Covers relational databases (PostgreSQL, MySQL) and graph databases (Neo4j, Amazon Neptune, Dgraph). Do NOT use for: dimensional modeling (see dimensional-modeling skill), NoSQL document modeling, or streaming data schemas.

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Data Data Platform · j4flmao bundle
Use this skill when designing end-to-end data platforms: data lake architecture, data lakehouse architecture, distributed storage (S3, ADLS, GCS), distributed compute (Spark, Trino, Presto), data catalog (Datahub, Amundsen, Marquez), data mesh, data versioning (LakeFS, DVC), data virtualization (Dremio, Starburst). This skill enforces: platform architecture selection, storage/compute separation, catalog implementation, data mesh boundaries, version control for data. Do NOT use for: individual ETL pipelines (use etl-pipeline), streaming infrastructure (use streaming), BI tools (use bi-tools), data warehouse modeling (use data-warehouse).

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Data Data Strategy · j4flmao bundle
Use this skill when designing data strategy, data vision, data operating model, data culture, data maturity assessment, data ownership, or data governance roadmap. This skill enforces: maturity model assessment across people/process/tech/governance, vision and strategic pillar definition, operating model selection (centralized/federated/hybrid), data culture building with literacy programs, and data ownership frameworks with RACI and SLA. Do NOT use for: specific data platform architecture, ETL pipeline design, or tool-specific data engineering decisions.

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Etl Pipelines · j4flmao
Best practices for ETL pipelines using Apache Airflow and dbt.

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Data Feature Store · j4flmao bundle
Use this skill when asked about feature store, Feast, Tecton, feature engineering pipeline, online/offline serving, feature registry, point-in-time joins, feature serving, feature retrieval, ML feature pipeline, or feature management. This skill enforces: Feast deployment for feature management with offline and online serving, Tecton for managed feature platform, point-in-time correct feature joins for training datasets, feature registry for discovery and governance, and feature engineering pipeline design with batch and streaming sources. Do NOT use for: ML model training (use ML skill), data pipeline orchestration (use data-etl-pipeline), or real-time streaming infrastructure (use streaming skill).

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Data Search Engine · j4flmao bundle
Use this skill when asked about Elasticsearch, OpenSearch, Solr, search engine, full-text search, inverted index, indexing, search analytics, aggregation, cluster management, or shard routing. This skill enforces: Elasticsearch architecture (node types, shards, replicas), indexing strategy (mapping, analysis, tokenization), search queries (full-text, term, bool, fuzzy), aggregations (metric, bucket, pipeline), cluster management (node roles, shard allocation, ILM), OpenSearch differences, and performance tuning. Do NOT use for: relational database queries, graph traversals, or key-value lookups.

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Design UX Research · j4flmao bundle
Use this skill when planning UX research, user research, usability testing, user interviews, personas, user journeys, information architecture, or card sorting. This skill enforces: method selection (generative vs evaluative), structured interview protocols, usability test plans, persona templates, journey mapping, and synthesis frameworks. Do NOT use for: visual design critiques, A/B test design, or analytics/quantitative analysis.

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Dev Loop Pr Writer · j4flmao bundle
Use when the user asks about writing pull requests, PR descriptions, PR templates, effective code reviews, or pull request best practices. Do NOT use for: code review content (dev-loop-code-review), or git workflow branching (dev-loop-git-workflow).

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Cilium Ebpf · j4flmao bundle
Use this skill when the user says 'Cilium', 'eBPF', 'BPF', 'Hubble', 'service mesh', 'network policy', 'cluster mesh', 'eBPF observability', 'kube-proxy replacement', 'CiliumNetworkPolicy', 'CiliumClusterWideNetworkPolicy', 'CiliumEndpoint', 'Hubble UI', 'Tetragon', 'Cilium CNI'. Covers: Cilium CNI installation, eBPF-based networking, network policies, Hubble observability, cluster mesh (multi-cluster), service mesh (L7 policies), kube-proxy replacement, bandwidth management, encryption (Wireguard/IPsec). Do NOT use for: generic Kubernetes networking (use kubernetes-patterns), traditional CNI plugins (Calico, Flannel).

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Headless Ecommerce · j4flmao
Shopify Storefront API and Hydrogen best practices.

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Stripe Payments · j4flmao
Stripe subscription lifecycle and webhook handling.

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Assembly · j4flmao
Assembly Skill Architecture

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Management Okr Kpi · j4flmao bundle
Use this skill when the user says 'OKR', 'KPI', 'objectives', 'key results', 'metrics', 'OKR setting', 'quarterly goals', 'team metrics', 'performance indicators', 'goal setting', 'North Star metric'. Define and track OKRs and KPIs with cascade, scoring, and review cadence. Do NOT use for: project planning or sprint ceremonies.

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Ml Computer Vision · j4flmao bundle
Use this skill when building computer vision systems for image classification, object detection, segmentation, or image preprocessing/augmentation. This skill enforces: task selection (classification/detection/segmentation), model choice by task and budget, image preprocessing pipeline, augmentation strategy, training config with metrics (mAP, IoU), inference optimization. Do NOT use for: video streaming analytics, OCR (use separate OCR skill), medical imaging (requires domain-specific skill), NLP with image captions (use ml-nlp).

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Mobile Dotnet Maui · j4flmao bundle
Use this skill when the user says '.NET MAUI', 'MAUI app', 'Xamarin', 'MAUI', 'MAUI page', 'MAUI Shell', 'MAUI MVVM', 'MAUI data binding', 'MAUI collection view'. Build cross-platform mobile apps with .NET MAUI including Shell navigation, MVVM, controls, and deployment. Do NOT use for: ASP.NET Core or Blazor development.

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Product Ab Testing · j4flmao bundle
Use this skill when designing and analyzing A/B tests: hypothesis formation, experiment design, statistical analysis, and decision framework. This skill enforces: hypothesis structure, sample size calculation, statistical significance, AA test validation. Do NOT use for: multivariate testing, bandit algorithms, personalization engines, survey analysis.

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Devsecops · j4flmao
Apply DevSecOps practices, focusing on automated SAST/DAST scanning within CI/CD pipelines.

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Security Sast Dast · j4flmao bundle
Use this skill when asked about SAST, DAST, static analysis, dynamic analysis, code scanning, SonarQube, Semgrep, Checkmarx, Fortify, OWASP ZAP, or Burp Suite. This skill enforces: SAST tool integration with custom rule writing, DAST scanning with authenticated sessions, false positive triage workflow, and CI pipeline gate configuration. Do NOT use for: dependency scanning (SBOM), container image scanning, or runtime security monitoring.

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Backend Bulk Import · j4flmao bundle
Enforce bulk data import patterns including CSV/Excel parsing, file upload handling, validation pipeline, progress tracking, batch processing, error reporting, rollback on failure, deduplication, and background processing. NOT for real-time data ingestion or streaming pipelines.

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Golang Patterns · j4flmao bundle
Use this skill when the user says 'Go goroutine', 'Go concurrency', 'Go channel', 'Go error handling', 'Go HTTP', 'Go middleware', 'Go context', 'Go worker pool', 'Go mutex', 'Go select', or when implementing Go-specific patterns. This skill enforces: goroutine lifecycle (every goroutine has a stop condition), errgroup for parallel work, error wrapping, HTTP handler DI via struct/closure, and graceful shutdown. Requires Go (go.mod). Do NOT use for: Go project structure, interface design, or non-Go patterns.

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Nodejs Hono · j4flmao bundle
Use this skill when building Hono applications — lightweight web framework, edge-ready, Zod validation, RPC client. This skill enforces: Hono app factory pattern, Zod validation middleware, RPC type-safe client, middleware composition, edge deployment readiness. Do NOT use for: Express.js apps, NestJS projects, or non-Hono frameworks.

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PHP Laravel · j4flmao bundle
Use this skill when building Laravel applications — MVC structure, Eloquent ORM, service layer, validation, queues, and testing. This skill enforces: thin controllers, service layer for business logic, Eloquent best practices with eager loading, form request validation, and queue job structure. Requires Laravel 10+ or 11+. Do NOT use for: Symfony, WordPress, non-Laravel PHP frameworks.

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Symfony Backend · j4flmao bundle
Use this skill when building Symfony backend applications — bundles, Doctrine ORM, Twig templates, Flex recipes, Messenger component. This skill enforces: service container autowiring, proper bundle structure, Doctrine mapping conventions, Flex-driven configuration. Do NOT use for: Laravel projects, WordPress plugins, pure PHP micro-frameworks.

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Vapor Backend · j4flmao bundle
Use this skill when building Vapor Swift backend applications — async HTTP server, Fluent ORM, WebSocket support, middleware pipeline. This skill enforces: structured concurrency with async/await, proper route grouping, Fluent migration patterns, environment-based configuration. Do NOT use for: iOS apps, macOS desktop apps, Kitura or Hummingbird projects.

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Gitops Mechanics With Argocd · j4flmao
Detailed examination of the ArgoCD Reconciliation Loop and Drift Detection algorithms.

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Data Data Contracts · j4flmao bundle
Use this skill when asked about data contract, data agreement, schema contract, producer/consumer contract, schema evolution, compatibility, data SLA, dbt contracts, or data product contract. This skill enforces: data contract definition with schema, semantics, SLA, and ownership, contract enforcement in CI/CD, schema compatibility checks (backward/forward/full), contract versioning, dbt contract configuration, and automated contract testing. Do NOT use for: data quality testing, data catalog management, or general API contract design.

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Data Data Lakehouse · j4flmao bundle
Use this skill when designing lakehouse architectures with medallion layers (bronze/silver/gold), Databricks Unity Catalog, Delta Sharing, Apache Paimon, or multi-cloud lakehouse. This skill enforces: medallion architecture layers and data flow, Unity Catalog metastore and RBAC, Delta Sharing for data mesh, Apache Paimon table format, multi-cloud replication strategy, open format commitment. Do NOT use for: single-layer data lakes without tiering, streaming-only pipelines, or BI dashboard design.

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Data Data Warehouse · j4flmao bundle
Use this skill when asked about data warehouse, Snowflake, BigQuery, Redshift, star schema, snowflake schema, OLAP, dimensional modeling, fact tables, dimension tables, or data warehouse optimization. This skill enforces: dimensional modeling with star schema, platform-specific partitioning and clustering, materialized views for query performance, and cost optimization strategies. Do NOT use for: ETL pipeline design, real-time streaming, or BI dashboard configuration.

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Data Graph Database · j4flmao bundle
Use this skill when asked about Neo4j, Amazon Neptune, JanusGraph, graph database, graph model, Cypher, Gremlin, RDF, SPARQL, graph traversal, property graph, or knowledge graph. This skill enforces: graph data modeling (property graph, RDF), Neo4j/Cypher query patterns, Amazon Neptune/Gremlin traversal, JanusGraph architecture with backend storage, graph traversal optimization, knowledge graph design for connected domains, and performance tuning (indexing, caching, query planning). Do NOT use for: document storage, wide-column time-series, or full-text search.

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Data Nosql Database · j4flmao bundle
Use this skill when asked about MongoDB, Cassandra, DynamoDB, Couchbase, CosmosDB, NoSQL, document database, wide-column, key-value, consistency model, CAP theorem, sharding, or denormalization. This skill enforces: NoSQL type selection (document, key-value, wide-column, graph), MongoDB aggregation pipeline and indexing, Cassandra data modeling with partition/clustering keys, DynamoDB single-table design with GSI/LSI, CAP theorem trade-offs, consistency models (eventual, strong, quorum), and denormalization patterns. Do NOT use for: relational schema design, graph database traversal, or full-text search configuration.

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Digitalocean · j4flmao bundle
Use this skill when the user says 'DigitalOcean', 'DO', 'Droplet', 'DOKS', 'App Platform', 'Spaces', 'Managed Database', 'Floating IP', 'Cloud Firewall', 'doctl', 'Terraform DigitalOcean', 'VPC', 'Load Balancer', 'DNS', 'Container Registry', 'Functions'. Covers: core DO services, Droplets, networking, managed databases, Kubernetes, App Platform, infrastructure tooling. Do NOT use this for: AWS, Azure, GCP, or other cloud providers.

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Hybrid Cloud · j4flmao bundle
Use this skill when the user says 'hybrid cloud', 'hybrid-cloud', 'cloud burst', 'on-prem to cloud', 'cloud repatriation', 'hybrid connectivity', 'express route', 'direct connect', 'VPN', 'transit gateway', 'cloud interconnect', 'multi-cloud', 'cross-cloud', 'data gravity', 'cloud migration', 'hybrid workload', 'hybrid networking', 'hybrid storage', 'hybrid compute', 'hybrid identity', 'cloud agnostic'. Covers: Designing hybrid architectures, connectivity patterns, hybrid identity, hybrid compute orchestration, data synchronization, disaster recovery across environments, repatriation planning, vendor comparison. Do NOT use this for: single-cloud architectures, pure on-prem environments, or basic VPN setup without hybrid context.

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Oracle Cloud · j4flmao bundle
Use this skill when the user says 'oracle cloud', 'oci', 'oracle cloud infrastructure', 'oracle database cloud', 'oci compute', 'oci networking', 'oci storage', 'oci identity', 'oci iam', 'oracle autonomous database', 'oci load balancer', 'oci dns', 'oci functions', 'oci container engine', 'oke', 'oracle kubernetes', 'oci terraform', 'oci resource manager', 'oracle cloud regions', 'oci fastconnect', 'oci vcn', 'oci security list', 'oci nsg', 'oci bastion', 'oci vault', 'oci waf', 'oci email delivery', 'oci object storage', 'oci block volume', 'oci file storage', 'oci budget', 'oci cost analysis', 'oci announcements', 'oci support'. Covers: Oracle Cloud Infrastructure (OCI) resources, networking, compute, storage, IAM, OKE (Kubernetes), Autonomous Database, and governance.

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Devops Service Mesh · j4flmao bundle
Trigger: "service mesh", "Istio", "Linkerd", "Envoy", "sidecar", "mTLS", "service-to-service", "mesh traffic", "virtual service", "destination rule", "service mesh observability", "mesh security" Exclusion: Not for standard K8s networking — use kubernetes-patterns.

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Alerting · j4flmao bundle
Use this skill when the user asks about alert rules, Alertmanager, Prometheus alerts, Grafana alerts, notification routing, PagerDuty, on-call, escalation, alert fatigue, or threshold tuning.

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Security · j4flmao bundle
Use this skill when the user asks about security team operations, AppSec, vulnerability management, security review, threat modeling, security incident response, CVE, or compliance.

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Ml Math Foundations · j4flmao bundle
Use this skill when you need to understand, derive, or debug the mathematical foundations behind ML/DL algorithms — linear algebra, calculus, probability, information theory, optimization, loss functions, and deep learning math. This skill enforces: correct notation, rigorous derivations, and mapping from math concepts to ML implementations. Do NOT use for: implementing ML algorithms with libraries (use ml/classical-ml or ml/deep-learning), data preprocessing (use data/), or general statistics (use data/data-quality).

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Ml Model Evaluation · j4flmao bundle
Use this skill when evaluating model performance, selecting metrics, designing cross-validation strategies, diagnosing bias-variance tradeoffs, or performing statistical significance testing. This skill enforces: metric selection by task type, cross-validation strategy by data structure, bias-variance diagnosis, learning curve analysis, statistical significance protocol. Do NOT use for: hyperparameter tuning (use ml-hyperparameter-tuning), experiment tracking (use ml-experiment-tracking), model explainability (use ml-model-interpretability).

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React Native Expertise · j4flmao bundle
Expert knowledge in React Native, focusing on FlatList optimization and OTA Updates.

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Create Prd · j4flmao bundle
Use this skill when the user says 'create PRD', 'product requirements', 'write requirements', 'epics and stories', 'acceptance criteria', or when docs/brief.md exists and needs expansion into a full Product Requirements Document. This skill reads the brief, generates 5-8 epics, and for each epic creates 3-5 user stories with Gherkin acceptance criteria. It also produces non-functional requirements and a Definition of Done. Do NOT use for: recording architecture decisions or writing technical specifications.

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Web3 Dapp Playbook · j4flmao
Playbook for building full-stack Web3 applications (Next.js, Solidity, Kubernetes).

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Quality E2e Testing · j4flmao bundle
Use this skill when setting up E2E testing, end-to-end tests, Playwright, Cypress, browser tests, user flow tests, or integration tests. This skill enforces: framework selection (Playwright preferred), page object model, test isolation, parallel execution, CI integration, and visual assertions. Do NOT use for: unit testing, API-only tests, or performance/load testing.

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Structured Data · j4flmao
JSON-LD Schema markup for Products, Articles, and FAQs.

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Micro Frontends · j4flmao
Implementing Module Federation for scaling frontend teams.

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Agentic Workflows · j4flmao
Agentic Workflows & Multi-Agent Orchestration

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Quarkus Backend · j4flmao bundle
Use this skill when building Quarkus backend applications — supersonic Java, Dev UI, GraalVM native, reactive messaging, Panache ORM. This skill enforces: compile-time metadata processing, live reload, continuous testing, container-first design. Do NOT use for: Spring Boot projects, Micronaut applications, standard Jakarta EE.

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Flask Backend · j4flmao bundle
Use this skill when building Flask backend applications — lightweight, extensions, blueprints, Jinja2 templates, SQLAlchemy ORM. This skill enforces: blueprint-based modularization, proper application factory pattern, extension initialization, request context management. Do NOT use for: Django projects, FastAPI applications, Tornado async servers.

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Data Clean Room · j4flmao bundle
Use this skill when asked about data clean room, AWS Clean Rooms, Snowflake Clean Room, PSI, Private Set Intersection, privacy-preserving data join, data collaboration, secure multi-party computation, differential privacy, privacy-enhancing technologies, or PET. This skill enforces: clean room architecture with privacy guarantees, PSI protocol selection, column-level access policies, differential privacy budget controls, and query constraints for cross-party data collaboration. Do NOT use for: ETL pipeline design, data masking/anonymization for internal use, or standard data sharing without privacy constraints.

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Data Data Versioning · j4flmao bundle
Use this skill when asked about data versioning, DVC, LakeFS, data lineage, Git-like for data, data reproducibility, data branching, data diff, data snapshot, or experiment reproducibility. This skill enforces: DVC patterns for ML pipelines and data version control, LakeFS for Git-like semantics on data lakes, branching and merging data, data diff and rollback, experiment reproducibility with metrics tracking, and data lineage from source to model. Do NOT use for: code versioning with Git, database schema migrations, or application artifact versioning.

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Data Schema Registry · j4flmao bundle
Use this skill when asked about Schema Registry, Avro, Protobuf, schema evolution, compatibility, Confluent Schema Registry, Apicurio, serialization, deserialization, or schema validation. This skill enforces: Schema Registry architecture and deployment, Avro/Protobuf/JSON Schema definition, compatibility modes (BACKWARD, FORWARD, FULL, NONE), schema evolution best practices, SerDe (serialization/deserialization) patterns, and CI/CD integration for schema governance. Do NOT use for: data contract enforcement, data catalog management, or database schema design.

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Design Accessibility · j4flmao bundle
Use this skill when addressing accessibility, a11y, WCAG compliance, screen reader support, keyboard navigation, color contrast, ARIA patterns, or inclusive design. This skill enforces: WCAG 2.2 AA compliance (AAA where possible), semantic HTML structure, correct ARIA patterns, keyboard interaction design, sufficient color contrast, and screen reader testing protocol. Do NOT use for: general frontend performance optimization, visual design aesthetics, or mobile gesture-only interactions.

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Design Motion Design · j4flmao bundle
Use when the user asks about motion design, animation, micro-interactions, Lottie, animation principles, UI animation, transition design, or motion guidelines. Do NOT use for: frontend animation implementation (frontend-animation), or visual design (design-visual-design).

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Design Visual Design · j4flmao bundle
Use when the user asks about visual design, color theory, typography, layout, visual hierarchy, spacing, proportion, or UI aesthetics. Do NOT use for: design systems (design-design-systems), UX research (design-ux-research), or prototyping (design-prototyping).

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Code Review · j4flmao bundle
Use this skill when the user says 'review this code', 'code review', 'review PR', 'check this implementation', 'is this code good', 'LGTM?', 'feedback on code', or wants a structured code review. Covers: correctness, architecture, clarity, performance, security, and test quality. Produces a structured review with severity levels: MUST, SHOULD, CONSIDER. Works with any language/stack. Do NOT use this for: debugging (use debugging-strategy), writing code, or architectural planning.

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Alibaba Cloud · j4flmao bundle
Use this skill when the user says 'Alibaba Cloud', 'Aliyun', 'ECS', 'ACK', 'OSS', 'SLB', 'RDS', 'ApsaraDB', 'Alibaba Cloud Kubernetes', 'Container Service', 'VPC', 'Security Group', 'Resource Access Management', 'RAM', 'Terraform Alibaba Cloud', 'terraform alicloud'. Covers: compute (ECS, ECI), container orchestration (ACK, ASK), networking (VPC, SLB, PrivateLink), storage (OSS, NAS, block storage), database (RDS, PolarDB, Redis), security (RAM, KMS, WAF), serverless (FC, SAE), and cost optimization. Do NOT use for: AWS, GCP, Azure, or other cloud providers.

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Cicd Pipeline · j4flmao bundle
Use this skill when the user says 'CI/CD', 'GitHub Actions', 'GitLab CI', 'pipeline', 'deployment pipeline', 'automated testing pipeline', 'workflow yaml', 'build pipeline', 'deploy workflow', 'continuous integration', 'continuous delivery'. Covers: pipeline stages (lint → test → build → security scan → deploy), caching, parallel execution, deployment strategies (blue/green, canary, rolling), security scanning, secret management, rollback. Do NOT use for: Dockerfile optimization, Kubernetes, local dev setup.

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Helm Patterns · j4flmao bundle
Use this skill when the user says 'helm', 'helm chart', 'helm template', 'helm install', 'helm upgrade', 'helm rollback', 'helmfile', 'helm secrets', 'helm values', 'helm dependency', 'helm repository', 'helm plugin', 'helm unittest', 'helm lint', 'helm package', 'helm registry', 'oci helm', 'helm hooks', 'helm tests', 'helm subchart', 'helm global values', 'helm library chart', 'helm umbrella chart', 'helm postrender', 'helm diff', 'helmfile', 'helm values schema', 'helm crd', 'chart museum', 'chart repo', 'helmfile environment'. Covers: Helm chart development, templating, dependency management, testing, CI/CD integration, security, advanced patterns, and operational best practices.

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Observability · j4flmao bundle
Use this skill when the user says 'observability', 'logging', 'metrics', 'tracing', 'OpenTelemetry', 'Grafana', 'Prometheus', 'structured logs', 'distributed tracing', 'monitoring', or when setting up observability for a service. Covers: three pillars (logs, metrics, traces), structured JSON logging, OpenTelemetry SDK setup per stack, SLO/SLI/SLA definitions, and alert design (alert on symptoms, not causes). Works with any language/stack. Do NOT use this for: infrastructure monitoring, database performance, or frontend analytics.

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Devops Opentelemetry · j4flmao bundle
OpenTelemetry observability framework for distributed systems. Covers: OTel concepts (traces, metrics, logs, SDK, API, Collector, OTLP), Collector pipeline (receiver, processor, exporter, batch, sampling, tail sampling, attributes), SDK instrumentation (automatic and manual for Java, Python, Node.js, Go, .NET), trace sampling strategies (head-based, tail-based, probabilistic, consistent), multi-backend export (Jaeger, Zipkin, Prometheus, Datadog, Grafana). Do NOT use for: Vendor-specific APM agent configuration without OTel.

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Devops Sre Practices · j4flmao bundle
Use when the user asks about Site Reliability Engineering, SRE, SLI, SLO, error budgets, toil reduction, reliability engineering, incident analysis, postmortems, production readiness, reliability dashboards, service level objectives, burn rate alerts, multi-window multi-burn-rate SLOs, or reliability maturity. This skill enforces: SLI/SLO definitions per service, error budget tracking with burn rate alerts, toil measurement and automation, blameless postmortems with action tracking, and production readiness reviews. Do NOT use for: general monitoring (monitoring), incident response tools (incident-response), or chaos engineering (chaos-engineering).

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E2e And Component Testing · j4flmao
Best practices for End-to-End testing with Playwright and Component testing.

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Typescript · j4flmao bundle
Use this skill when the user asks about TypeScript build tools, tsconfig, module resolution, type system, advanced types, generics, testing, or production deployment. Focus on tooling, type system, and ecosystem — not syntax basics.

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Ml Anomaly Detection · j4flmao bundle
Use this skill when detecting anomalies or outliers in data, building unsupervised anomaly detection systems, applying statistical methods (Z-score/IQR), proximity-based (LOF), ensemble (Isolation Forest), deep learning (autoencoder/VAE), or time-series anomaly detection. This skill enforces: method selection by data characteristics (tabular/time-series/high-dim), statistical baseline (Z-score/IQR), model configuration (contamination rate, threshold), evaluation with precision/recall at k, real-time pipeline design. Do NOT use for: supervised fraud detection with labeled data (use classification skill), data quality checks (use data-validation skill), root cause analysis of detected anomalies, or forecasting (use ml-time-series).

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Soc Analyst · j4flmao
Adopts the persona of a Principal SOC Analyst for defensive security monitoring and incident response.

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Product Go To Market · j4flmao bundle
Use this skill when planning product launches: GTM strategy, launch tiers, channel selection, messaging, and beta programs. This skill enforces: ICP definition, launch tier classification, channel strategy, messaging and positioning. Do NOT use for: paid advertising execution, sales enablement, event planning, PR campaigns.

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Quality Load Testing · j4flmao bundle
Use this skill when setting up load testing, performance testing, stress tests, k6, Locust, artillery, JMeter, or benchmarking throughput and latency. This skill enforces: scenario design (load, stress, spike, soak), metric collection (latency p50/p95/p99, throughput, error rate), distributed execution, and CI integration. Do NOT use for: frontend performance testing (Lighthouse), database query optimization, or unit-level benchmarks.

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Quality Unit Testing · j4flmao bundle
Use when the user asks about unit testing, test doubles, mocking, stubbing, test-driven development (TDD), FIRST principles, code coverage, test structure (AAA), or unit test patterns. Do NOT use for: integration testing (quality-integration-testing), E2E testing (quality-e2e-testing), or frontend testing (frontend-testing).

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Programmatic SEO · j4flmao
Automated generation of high-quality landing pages at scale.

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Deep Research · j4flmao
Research a topic thoroughly using codebase exploration. Use when the user wants deep investigation of a feature, bug, or pattern.

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Nodejs Prisma · j4flmao bundle
Use this skill when working with Prisma ORM — schema modeling, migrations, queries, relations, middleware, and deployment. This skill enforces: data model normalization, relation conventions, Prisma Client best practices, migration safety, and performance optimization. Requires @prisma/client. Do NOT use for: Mongoose, TypeORM, Drizzle ORM, or non-relational databases.

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Python Django Architecture · j4flmao bundle
Use this skill when the user says 'Django structure', 'Django architecture', 'Django apps', 'Django clean arch', 'Django ORM', 'Django REST framework', 'DRF', or when building a Django application. This skill enforces: one Django app per bounded context, service layer pattern separating business logic from models, thin views that delegate to services, DRF serializers as DTOs, and signals that trigger services (no business logic in signals). Requires Django in dependencies. Do NOT use for: FastAPI projects, Flask, or non-Django Python backend.

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Rust Patterns · j4flmao bundle
Use this skill when implementing Rust-specific patterns — async/tokio patterns, ownership/borrowing strategies, error handling with thiserror/anyhow, serde serialization, FFI, concurrency with Arc/RwLock, and API patterns. This skill enforces: thiserror for library errors, anyhow for application errors, serde for serialization, Arc for shared state, and tokio for async. Requires Rust (Cargo.toml). Do NOT use for: Go goroutines, Java threads, or non-Rust specific concurrency patterns.

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Backend Sms Messaging · j4flmao bundle
Enforce SMS and messaging patterns including Twilio/AWS SNS/Vonage integration, WhatsApp Business API, 2FA OTP delivery, TCPA compliance, message templates, rate limiting, and delivery analytics. NOT for push notifications or in-app messaging.

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Backend Web Real Time · j4flmao bundle
Use when the user asks about WebRTC, real-time video/audio, media streaming, SFU/MCU, signaling server, TURN/STUN, live streaming, WebSocket for media, or real-time communication infrastructure. Do NOT use for: basic WebSocket patterns (websocket-patterns), or general real-time updates (data-streaming).

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Data Batch Processing · j4flmao bundle
Use this skill when designing batch processing with Hive, Spark SQL, Pig, or HQL. This skill enforces: Hive metastore management, Spark SQL Catalyst optimization, file format selection (Parquet, ORC, Avro), partitioning and bucketing strategies, query tuning with statistics and dynamic partition pruning. Do NOT use for: real-time streaming, CDC pipelines, distributed compute framework selection (see data-distributed-compute), or lake table format design.

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Vector Databases · j4flmao bundle
Vector Databases and High-Dimensional Space

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Design Brand Identity · j4flmao bundle
Use when the user asks about brand identity, brand guidelines, visual identity, brand strategy, logo usage, brand voice, or brand consistency. Do NOT use for: visual design (design-visual-design), design systems (design-design-systems), or UX research (design-ux-research).

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Design Systems · j4flmao bundle
Expertise in UI Component consistency and Figma to Code workflows.

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Dev Loop Git Workflow · j4flmao bundle
Use when the user asks about Git workflows, branching strategies, git hooks, merge strategies, git history management, or team git conventions. Do NOT use for: code review (dev-loop-code-review), changelogs (dev-loop-changelog-generator), or CI/CD configuration.

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Github Actions · j4flmao bundle
Use this skill when the user says 'GitHub Actions', 'CI/CD', 'workflow', 'reusable workflow', 'composite action', 'matrix build', 'actions/checkout', 'GITHUB_TOKEN', 'self-hosted runner', or when setting up CI/CD pipelines on GitHub. Covers: workflow files, reusable workflows, composite actions, matrix strategies, expressions, environments, artifacts, caching, OIDC. Do NOT use this for: Jenkins pipelines, GitLab CI, CircleCI, or non-GitHub CI systems.

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Devops Policy As Code · j4flmao bundle
Use when the user asks about policy as code, OPA, Rego, Kyverno, admission controllers, policy enforcement, compliance as code, guardrails, or policy-based governance in Kubernetes/cloud. Covers: OPA/Rego policy writing, Gatekeeper constraint templates, Kyverno cluster policies, policy testing (conftest, opa test), CI/CD policy integration, mutation policies, policy reporting, and compliance automation. Do NOT use for: general compliance (enterprise-compliance-audit), security scanning (security-sast-dast), or RBAC design.

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Rtos · j4flmao
RTOS Internals

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React Nextjs · j4flmao bundle
Use this skill when the user says 'Next.js', 'App Router', 'Server Component', 'Client Component', 'Next.js structure', 'SSR Next.js', 'SSG Next.js', 'Next.js data fetching', 'use server', 'use client', or when building a Next.js application with App Router. This skill enforces: default to Server Components, add 'use client' only when necessary (event listeners, browser APIs, hooks), data fetching in Server Components with async/await, route/layout conventions (loading.tsx, error.tsx, not-found.tsx), and metadata API for SEO. Requires Next.js 14+ (next.config). Do NOT use for: CRA, Vite, Remix, or other React frameworks.

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Frontend Vue Patterns · j4flmao bundle
Use this skill when the user says 'Vue pattern', 'Composition API pattern', 'composable', 'provide/inject', 'Vue reactivity', 'Vue directive', 'Vue composable', 'Vue Router', 'Pinia pattern', 'renderless component', 'Vue slot pattern'. This skill enforces: composables for all reusable logic (useX naming), Pinia setup stores for global state, route lazy loading with navigation guards, renderless components with scoped slots, and custom directives for reusable DOM behavior. Requires Vue 3 (package.json with vue). Do NOT use for: Vue project structure/architecture, Nuxt-specific patterns, or non-Vue frameworks.

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Ecs Architecture · j4flmao
Expert ECS (Entity Component System) architecture patterns - storage models, system scheduling, archetypes, cache-friendliness, and real-world engine comparisons.

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Pentesting · j4flmao bundle
Use this skill when the user asks about penetration testing, pentest, security assessment, vulnerability assessment, bug bounty, ethical hacking, or red team operations.

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Team Rules · j4flmao bundle
Use this skill when the user asks about team rules, collaboration, code review, branch strategy, PR templates, git flow, RFC process, incident response, on-call, or decision making.

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Mobile Widgets · j4flmao bundle
Enforce mobile widget development patterns for iOS WidgetKit (widgets, Live Activities) and Android App Widgets (widgets, complications). Covers timeline management, widget families, configuration, deep linking, refresh strategies, and testing. NOT for in-app UI components or full-screen experiences.

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Persona Staff AI Solutions Architect · j4flmao
Act and think like a Staff-level AI Solutions Architect, focusing on RAG vs Fine-tuning tradeoffs, cost optimization, and agentic patterns.

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Persona Staff Data Analyst · j4flmao
Act and think like a Staff-level Data Analyst, focusing on business insights, A/B testing, and actionable metrics.

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Gpu Engineer · j4flmao
Adopts the persona of a Principal GPU Hardware Architect to approach problems with a Massively Parallel mindset, focusing on coalesced memory and vRAM optimization.

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Persona QA Architect · j4flmao
Adopts the persona of a Staff-level QA Architect. Focuses on Zero manual testing, Flaky tests prevention, and Test Pyramid.

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645 published skills · page 2 of 7