vasilyu1983
@vasilyu1983
Public Skills
ai-agents
by vasilyu1983
Production-grade AI agent patterns with MCP integration, agentic RAG, handoff orchestration, multi-layer guardrails, observability, token economics, ROI frameworks, and build-vs-not decision guidance (modern best practices)
document-xlsx
by vasilyu1983
"Create, edit, audit, and extract Excel spreadsheets (.xlsx): generate reports/exports, apply formulas/formatting/charts/data validation, parse existing workbooks, and avoid spreadsheet risks (formula injection, broken links, hidden rows). Supports ExcelJS, openpyxl, pandas, XlsxWriter, and SheetJS."
data-metabase
by vasilyu1983
"Metabase REST API automation and troubleshooting: authenticate (API key preferred, session fallback), export/upsert questions (cards) and dashboards, standardize visualization_settings, and run/export results."
marketing-social-media
by vasilyu1983
Sustainable social media marketing and paid social: content systems, community management, influencer ops, social commerce, and attribution (2026).
agents-subagents
by vasilyu1983
Create and maintain AI coding agent subagents (.claude/agents/.md, .codex/agents/.md) with YAML frontmatter (name/description/tools/model/permissionMode/skills/hooks), least-privilege tool selection, delegation patterns (Task), context budgeting, and safety best practices.
project-astrology-numerology
by vasilyu1983
Use when developing astrology/numerology apps, validating chart calculations (timezone/DST, quadrant handling), or producing psychology-first interpretations. Expert advisor (30+ years) catches common bugs (D026-D028) and defines accuracy/test standards. (project)
ai-llm-inference
by vasilyu1983
"Operational patterns for LLM inference: latency budgeting, tail-latency control, caching, batching/scheduling, quantization/compression, parallelism, and reliable serving at scale. Emphasizes production-grade performance, cost control, and observability."
ai-llm
by vasilyu1983
Production LLM engineering skill. Covers strategy selection (prompting vs RAG vs fine-tuning), dataset design, PEFT/LoRA, evaluation workflows, deployment handoff to inference serving, and lifecycle operations with cost/safety controls.
data-analytics-engineering
by vasilyu1983
Analytics engineering for reliable metrics and BI readiness. Build transformation layers, dimensional models, semantic metrics, data quality tests, and documentation. Use when you need dbt or SQL transformation strategy, metrics definition, or analytics data modeling.
ai-ml-data-science
by vasilyu1983
"End-to-end data science and ML engineering workflows: problem framing, data/EDA, feature engineering (feature stores), modelling, evaluation/reporting, plus SQL transformations with SQLMesh. Use for dataset exploration, feature design, model selection, metrics and slice analysis, model cards/eval reports, experiment reproducibility, and production handoff (monitoring and retraining)."
docs-codebase
by vasilyu1983
Technical writing patterns for README files, API documentation, architecture decision records (ADRs), changelogs, contributing guides, code comments, and docs-as-code workflows. Covers documentation structure, style guides, Markdown best practices, and documentation testing.
ai-mlops
by vasilyu1983
Production MLOps and ML/LLM/agent security skill for deploying and operating ML systems in production (registry + CI/CD, serving, monitoring/drift, evaluation loops, incident response/runbooks, and governance), including GenAI security (prompt injection, jailbreaks, RAG security, privacy, and supply chain).
data-lake-platform
by vasilyu1983
"Data lake and lakehouse platform patterns: ingestion/CDC, transformations, open table formats (Iceberg/Delta/Hudi), query and serving engines (Trino/ClickHouse/DuckDB), orchestration, governance/lineage, cost and operations. Self-hosted and cloud options."
dev-dependency-management
by vasilyu1983
Package and dependency management patterns across ecosystems (npm, pip, cargo, maven). Covers lockfiles, semantic versioning, dependency security scanning, update strategies, monorepo workspaces, transitive dependencies, and avoiding dependency hell.
ai-prompt-engineering
by vasilyu1983
"Operational prompt engineering for production LLM apps: structured outputs (JSON/schema), deterministic extractors, RAG grounding/citations, tool/agent workflows, prompt safety (injection/exfiltration), and prompt evaluation/regression testing. Use when designing, debugging, or standardizing prompts for Codex CLI, Claude Code, and OpenAI/Anthropic/Gemini APIs."
marketing-content-strategy
by vasilyu1983
Content strategy and operations for marketing teams. Positioning, messaging hierarchy, content pillars, editorial calendars, trust-building content, brand architecture, GEO/AI discovery, and content ROI measurement. Use for positioning sprints, trust audits, messaging matrices, content pillar planning, editorial ops, or ROI attribution (including regulated industries).
document-docx
by vasilyu1983
Create, edit, and analyze Microsoft Word .docx files (reports, contracts, proposals) with styles, tables, headers/footers, template filling, content extraction, and conversion to HTML; support review workflows (comments/highlights) and inspect tracked changes via OOXML when needed using Python/Node.js (python-docx, docxtpl, mammoth.js, docx).
dev-workflow-planning
by vasilyu1983
Structured development workflows using /brainstorm, /write-plan, and /execute-plan patterns. Transform ad-hoc conversations into systematic project execution with hypothesis-driven planning, incremental implementation, and progress tracking.
help-center-design
by vasilyu1983
Design or audit AI-first help centers/knowledge bases/FAQs, including taxonomy, article templates, analytics, and AI support (RAG, chatbot, escalation), using 2025-2026 best practices
data-sql-optimization
by vasilyu1983
"Production-grade SQL optimization for OLTP systems: EXPLAIN/plan analysis, balanced indexing, schema and query design, migrations, backup/recovery, HA, security, and safe performance tuning across PostgreSQL, MySQL, SQL Server, Oracle, SQLite."
git-commit-message
by vasilyu1983
Auto-generates conventional commit messages from git diffs with tiered format enforcement. Analyzes staged changes to produce meaningful commit messages following Conventional Commits specification.
document-pdf
by vasilyu1983
Extract text/tables from PDFs, create formatted PDFs, merge/split/rotate, handle forms and metadata. Supports pdf-lib/pdfkit (Node.js) and pypdf/pdfplumber/ReportLab (Python).
marketing-cro
by vasilyu1983
Use when optimizing conversion rates, designing A/B tests, or improving landing pages. Covers A/B testing methodology, landing page optimization, form design, statistical significance, funnel analysis, and CRO prioritization frameworks.
docs-ai-prd
by vasilyu1983
Write PRDs, specs, and project context optimized for coding assistants (Claude Code, Cursor, Copilot, Custom GPTs). Includes CLAUDE.md generation, session planning, and templates for creating documentation that tools can execute effectively.
marketing-ai-search-optimization
by vasilyu1983
"Improve visibility in AI search and answer engines (ChatGPT, Perplexity, Gemini, Google AI Overviews) using GEO: crawl controls (robots/WAF/llms.txt), answer-ready content and entity pages, citation strategy, and measurement (query bank, share of model)."
dev-api-design
by vasilyu1983
Production-grade API design patterns for REST, GraphQL, gRPC, and tRPC. Covers API architecture, OpenAPI/Swagger specs, versioning/deprecation, authentication/authorization, rate limiting, pagination, error models, contract testing, and developer documentation.
git-workflow
by vasilyu1983
Modern Git collaboration patterns for team development - branching strategies, PR workflows, commit conventions, code review practice, repo hardening, CI merge queues, releases/hotfixes, and merge/rebase conflict resolution
document-pptx
by vasilyu1983
Create, edit, and analyze PowerPoint (.pptx) presentations: generate decks (pitch/QBR/training), apply templates/masters, add charts/images/tables, manage speaker notes, and extract slide content. Use when users mention PowerPoint/PPTX, slides, pitch deck, QBR/board deck, or presentation automation. Supports python-pptx, PptxGenJS, and PPTX-Automizer.
marketing-paid-advertising
by vasilyu1983
Paid advertising strategy for Google, Meta, TikTok, LinkedIn - campaign structure, bidding, audiences, creative, measurement, budget allocation, unit economics (CAC/LTV), revenue attribution, incrementality, payback period, and sales alignment.
project-astrology-chinese
by vasilyu1983
Use when users ask about Chinese astrology, zodiac compatibility, BaZi (Four Pillars) birth charts, Five Elements, Zi Wei Dou Shu, Flying Stars Feng Shui, or Qi Men Dun Jia timing. Calculates signs from birth data, interprets charts, and provides forecasts. (project)
marketing-geo-localization
by vasilyu1983
International marketing localization - regional platforms, cultural adaptation, compliance frameworks, and multi-market GTM strategies
project-astrology-tarot-divination
by vasilyu1983
Use when interpreting Tarot cards, designing spreads, performing readings, or building AI tarot features (daily card, card combinations, timing). Covers Major/Minor Arcana meanings, spread layouts (incl. Celtic Cross), reading ethics, and safe AI positioning. Not for medical/legal/crisis support or death/illness predictions. (project)
marketing-email-automation
by vasilyu1983
Email marketing automation for HubSpot/Klaviyo/Mailchimp (and similar ESPs): design trigger-based lifecycle workflows (welcome, onboarding, nurture, win-back, cart abandonment), define segmentation + suppression/frequency policies, troubleshoot deliverability (SPF/DKIM/DMARC, one-click unsubscribe, list hygiene), and measure incrementality/ROI (holdouts, RPE, retention economics).
marketing-leads-generation
by vasilyu1983
Use when building or fixing B2B pipeline. Revenue-aligned demand generation with lead types, funnel design, conversion paths, scoring/routing, attribution, ABS motions, and compliance.
marketing-product-analytics
by vasilyu1983
Product analytics instrumentation and strategy covering event taxonomy design, tracking plans, user behavior analysis, activation/retention metrics, and marketing attribution. PostHog-first with multi-platform support (Pendo, Amplitude, Mixpanel, Heap).
agents-mcp
by vasilyu1983
Configure and build Model Context Protocol (MCP) servers for AI coding agent integration (Claude Code, Codex CLI). Set up database, filesystem, git, and API connections. Build custom MCP servers with TypeScript/Python SDK, implement tools and resources, configure transports (stdio, HTTP), and deploy for production. Advises when to use MCP vs direct tool calls.
agents-skills
by vasilyu1983
Comprehensive reference for creating AI agent skills (Claude Code, Codex CLI) with progressive disclosure, SKILL.md structure, references/ organization, frontmatter specification, and best practices for modular capability development.
agents-hooks
by vasilyu1983
Create event-driven hooks for AI coding agent automation (Claude Code, Codex CLI). Configure hook events in settings or frontmatter, parse stdin JSON inputs, return decision-control JSON, and implement secure hook scripts.
agents-project-memory
by vasilyu1983
Configure project memory files (CLAUDE.md, AGENTS.md, CODEX.md) for persistent context, coding standards, architecture decisions, and team conventions. Reference for the 4-tier memory hierarchy, cross-platform compatibility, and quick-add commands.
product-antifraud
by vasilyu1983
Use when building log-based fraud detection for fintech applications, analyzing registration or authentication logs for behavioral patterns, bot detection, credential stuffing, velocity abuse, GDPR PII exposure in logs, or designing rule-based antifraud systems with tunable thresholds.
claude-code-commands
by vasilyu1983
Create slash commands for Claude Code with $ARGUMENTS handling, agent invocation patterns, and template best practices. Reference for building user-triggered workflow shortcuts.
ai-ml-timeseries
by vasilyu1983
"Operational patterns, templates, and decision rules for time series forecasting (modern best practices): tree-based methods (LightGBM), deep learning (Transformers, RNNs), future-guided learning, temporal validation, feature engineering, generative TS (Chronos), and production deployment. Emphasizes explainability, long-term dependency handling, and adaptive forecasting."
claude-code-hooks
by vasilyu1983
Create event-driven hooks for Claude Code automation. Configure hook events in settings or frontmatter, parse stdin JSON inputs, return decision-control JSON, and implement secure hook scripts.
ai-rag
by vasilyu1983
Complete RAG and search engineering skill. Covers chunking strategies, hybrid retrieval (BM25 + vector), cross-encoder reranking, query rewriting, ranking pipelines, nDCG/MRR evaluation, and production search systems. Modern patterns for retrieval-augmented generation and semantic search.
claude-code-mcp
by vasilyu1983
Configure and build Model Context Protocol (MCP) servers for Claude Code integration. Set up database, filesystem, git, and API connections. Build custom MCP servers with TypeScript/Python SDK, implement tools and resources, configure transports (stdio, HTTP), and deploy for production.
claude-code-project-memory
by vasilyu1983
Configure CLAUDE.md project memory files for persistent context, coding standards, architecture decisions, and team conventions. Reference for the 4-tier memory hierarchy, cross-platform AGENTS.md compatibility, and quick-add commands.
claude-code-agents
by vasilyu1983
Create and maintain Claude Code agents/subagents (.claude/agents/*.md) with YAML frontmatter (name/description/tools/model/permissionMode/skills/hooks), least-privilege tool selection, delegation patterns (Task), context budgeting, and safety best practices.
claude-code-skills
by vasilyu1983
Comprehensive reference for creating Claude Code skills with progressive disclosure, SKILL.md structure, references/ organization, frontmatter specification, and best practices for modular capability development.
marketing-seo-complete
by vasilyu1983
Complete SEO skill for technical audits (Core Web Vitals, site speed, crawlability/indexation, robots/sitemaps/canonicals, structured data, mobile, security, internal linking), SEO marketing strategy (keyword research, content planning, competitive analysis, E-E-A-T), operational workflows (cross-team collaboration, OKRs), link building, local SEO, international SEO (hreflang), and multi-platform SEO (Google, YouTube, Reddit, social). Updated for January 2026.
marketing-visual-design
by vasilyu1983
Visual marketing asset creation for ads, social media, email, presentations, and brand collateral. Platform-specific dimensions, creative best practices, AI design tools, and conversion-focused visual hierarchy. Use when you need production-ready marketing visuals.
product-management
by vasilyu1983
"Operational product management skill: discovery, strategy, roadmaps, metrics, and leadership - using templates, checklists, and patterns (no theory)."
project-qtax
by vasilyu1983
"UK taxation expert for HMRC compliance, Making Tax Digital (MTD ITSA/VAT) and Self-Assessment: explain tax treatment; compute income tax/NI/dividend/CGT with band-by-band breakdown; advise on deadlines/forms/penalties; and support MTD developer integration + tax software UX/flows. Use WebSearch (gov.uk/HMRC) to verify current rates and mandation timelines. (project)"
project-aeo-monitoring-tools
by vasilyu1983
Build custom AI search monitoring tools for competitive AEO analysis. Covers API access, scraping architecture, legal compliance, and cost estimation.
project-astrology-vedic
by vasilyu1983
Vedic/Jyotish (sidereal) astrology calculations and interpretation including Kundali/Kundli, Lagna, Rashi (Moon sign), Nakshatra, Vimshottari Dasha, yogas, vargas (D-9/D-10), Sade Sati, prashna (horary), panchang/muhurta, and Ashtakoot compatibility. Use when user asks for Vedic/Jyotish/Indian astrology or mentions those terms; not for Western/Tropical, Chinese astrology, or Tarot. (project)
ops-devops-platform
by vasilyu1983
"Production-grade DevOps and platform engineering patterns: Kubernetes, Terraform, containers, GitOps, CI/CD, observability, incident response, security hardening, and cloud-native operations (AWS, GCP, Azure, Kafka)."
project-real-estate-agent
by vasilyu1983
Use for London residential property due diligence and investment second opinions (Zone 1-3 focus): mortgage comparison, conveyancing guidance, market/regeneration research, and developer/agent diligence. Invoke when evaluating flats, BTL yields, leasehold risk, or sanity-checking a deal. Not legal/financial advice. (project)