Dariusz Kowalski
Polska wersja

Projects

Public GitHub projects + AI tooling ecosystem highlights (Jarvis, destylaty, pipelines).

Code projects

AI Tooling COMING SOON

AI QA Manual · Jarvis destylat

Production-ready manual QA workflow extracted from Jarvis. Context-first pipeline: Figma MCP + Jira webhook + Playwright CLI + Claude Agent SDK. Scale: 100-200 tasks in 2-3 days vs team-week classical.

Tech stack

  • TypeScript
  • Node.js
  • Claude Agent SDK
  • Playwright
  • MCP
  • n8n
Testing

CDAT Pattern · Playwright architecture

Components-Data-Actions-Tests - 4-layer architectural pattern for Playwright + TypeScript. Alternative to Page Object Model. Battle-tested across 9 production systems over 2 years.

Tech stack

  • TypeScript
  • Playwright
  • Node.js
AI Tooling

sdet-wcag-toolkit · Public WCAG 2.2 AA pipeline

Public AGPL-3.0 distillate of multi-agent WCAG audit pipeline. 5 AI specialists reading source via Read/Grep/Glob, plus static TypeScript analyzer and Playwright + axe-core dynamic testing. A-F grading. Case study in From the Field series #01.

Tech stack

  • TypeScript
  • Claude Agent SDK
  • Playwright
  • axe-core
  • MCP
AI Tooling

sdet-brain · Persistent RAG over MCP

Local-first persistent RAG for personal Markdown corpus. Qdrant + MLX + FastAPI + FastMCP 3.0. 11 MCP tools, 213 tests, source-available. Replaces copy-paste of context across Claude Desktop / Code / OpenCode chats.

Tech stack

  • Python
  • FastAPI
  • FastMCP
  • Qdrant
  • MLX
  • MCP
AI Tooling

skills-radar · Lazy-loading skill discovery for Claude Code

Open-source MCP server fixing Claude Code skill bloat. Two-Tier Discovery: ~1k token mini-index always preloaded, full SKILL.md loaded on demand. 68% token reduction at 60 skills, roughly flat at 500. Hybrid retrieval (BM25 + dense), trust tiers, 100% local Apple Silicon stack via MLX (Qwen3-Embedding-8B + Qwen3-Coder-30B rewriter/reranker). No Ollama, no HTTP, no network.

Tech stack

  • Python
  • FastMCP
  • ChromaDB
  • Qdrant
  • MLX
  • sentence-transformers
AI Tooling

Claude VSCode Controller

Cross-platform AI-IDE bridge. Real-time integration between Claude Desktop and VSCode using Extension API, WebSocket, and Model Context Protocol. 30+ native IDE commands via natural language.

Tech stack

  • TypeScript
  • VSCode Extension API
  • WebSocket
  • MCP
  • Claude SDK
Testing

MAF E2E Tests · Playwright

Automated E2E test suite for MAF app. CDAT pattern in production: UI testing, data validation, stability across user scenarios.

Tech stack

  • Playwright
  • TypeScript
  • CDAT
Testing

K6 Performance Dashboard

Enterprise-grade web app for K6 performance test visualization. Clean Architecture, live terminal, clone-and-run test repos without local DEV/QA environment.

Tech stack

  • React
  • Node.js
  • K6
  • Clean Architecture
Testing

MAF API Tests · Playwright

How to avoid going crazy and create a scalable structure for stable API testing. Part of MAF monorepo.

Tech stack

  • Playwright
  • TypeScript
  • API Testing
Utility

MAF · Moja Aplikacja Faktur

Full-stack invoicing app. Real-time financial analysis tool built for practical use - the backbone for all MAF testing case studies (API tests, UI tests, 4-layer pattern).

Tech stack

  • Vue
  • TypeScript
  • Node.js
  • PostgreSQL
Utility

Confluence Headers Manager

Intelligent tool that solves one of the most frustrating problems for Confluence users - bulk header management and consistent structure across pages.

Tech stack

  • TypeScript
  • Confluence API
Infrastructure

DEMO BI · Business Intelligence Dashboard

Production-ready BI platform built from scratch. Next.js 14, TypeScript, Tailwind, PostgreSQL 15, Docker. Real-time KPI dashboards, AI-powered analytics (forecasting, anomaly detection), RBAC, glassmorphism UI.

Tech stack

  • Next.js
  • TypeScript
  • Tailwind
  • PostgreSQL
  • Docker
Archive ARCHIVED

Portfolio v1 · Matrix-style legacy

Archived first version of sdet.pl portfolio. React + Framer Motion + Matrix animations. Kept for historical continuity - proves brand presence since early 2025.

Tech stack

  • React
  • Framer Motion
  • Vite

Ecosystem highlights

Private AI tooling ecosystem + open-source destylaty w przygotowaniu.

PRIVATE

Jarvis · Production multi-agent QA platform

Private · 34K LOC · 9 microservices · event-driven

Private multi-agent platform powering real-world QA workflows. 9 microservices, event-driven architecture, real-time UI, NATS messaging, PostgreSQL, WebSocket, 15 production pipelines. WCAG 7-agent + Performance 5-agent auditing at production scale. Modules published as standalone destylaty below.

Key metrics

Lines of code
34K
Microservices
9
Production pipelines
15
UI components
57
COMING SOON

Jarvis Manual · QA workflow destylat

Context-first pipeline · human-in-the-loop

Open-source destylat of the Jarvis manual QA workflow. Figma MCP + Jira webhook + Playwright CLI + Claude Agent SDK. Human approval checkpoints. Educational, not operational - method shown on dummy data, production integration = 2-4 weeks.

COMING SOON

Jarvis Figma · deterministic design pipeline

CSS token mapping · visual diff · codegen spec

Deterministic Figma pipeline. Extract design tokens via Figma MCP (no LLM at data layer), map to CSS variables, diff expected vs computed, pixel-level visual diff via odiff, codegen spec generation. LLM only in logic layer.

COMING SOON

jarvis-brain · cross-project knowledge vault

Dev meta-tool · stops Claude Code from burning tokens

Private dev tool - cross-project knowledge graph for Claude Code. FastAPI + PostgreSQL + Redis + Docker. 175 tests, mypy strict. MCP server exposes searchable project context so CC doesn't re-scan files on each session.

Key metrics

Test coverage
175
Phase
P2-S1