1kalin

HVAC Operations Manager

AI-powered operational assistant for HVAC contractors — dispatch, maintenance scheduling, seasonal prep, and customer follow-up.

When to Use

• Scheduling service calls and dispatching technicians
• Managing preventive maintenance programs
• Seasonal transition planning (heating ↔ cooling)
• Customer follow-up and retention campaigns
• Warranty tracking and parts inventory alerts

1kalin

RAG Production Engineering Guide

A complete methodology for building production-ready Retrieval-Augmented Generation systems.

Architecture Decision

Approach	Use When
Basic RAG	Simple Q&A, <100K docs, single source
Advanced RAG	Production systems, mixed content, accuracy-critical

1kalin

Veterinary Clinic Operations Agent

Description

Operational assistant for veterinary clinics — appointment scheduling optimization, patient follow-up workflows, inventory management for medications/supplies, and client communication templates. Reduces no-shows, prevents stockouts, and improves client retention.

Use When

• Optimizing appointment scheduling and reducing no-shows
• Managing medication and supply inventory with reorder alerts
• Creating client follow-up sequences (post-surgery, vaccination reminders, wellness checks)
• Generating end-of-day reports and revenue tracking

1kalin

Plumbing Business Operations

AI operations assistant for plumbing companies. Handles the back-office work that eats into your billable hours.

What It Does

• Job Estimation — Generate professional quotes with labor, materials, and permit costs calculated from job parameters (type, fixture count, access difficulty, emergency status)
• Schedule Optimization — Route techs by geographic zone, prioritize emergencies, minimize windshield time, output daily route sheets
• Parts Inventory — Track high-turn items (PVC, copper, PEX, valves, water heater parts) with reorder alerts based on weekly burn rate
• Customer Comms — Templates for quotes, confirmations, completion summaries, follow-ups, and annual maintenance reminders

1kalin

Kaizen Squad Retro — PI19 | Sprint 1 | March 11, 2026

Team: Tech: Kalin | SM: Rebecca | PM: Charlee | EM: Rebecca Capacity: S1 88% | CRs Closed: 7 | Incidents: 6/7 resolved

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What went well

• 6 out of 7 incidents resolved in one sprint — strong incident throughput while still shipping feature work

1kalin

Web Scraping & Data Extraction: Complete Production Guide

Build reliable, ethical, production-grade web scraping systems — from single-page extraction to large-scale data pipelines.

The 10 Scraping Commandments

1. Check robots.txt first — always, every time, no exceptions
2. API over scraping — if they offer an API, use it
3. Be polite — 2-5 second delays, off-peak hours, reasonable volume
4. Validate everything — never trust extracted data without checks

1kalin

Redis Production Engineering

Complete guide to Redis in production.

When to Use Redis

• Application cache: Perfect
• Session store: Perfect
• Rate limiting: Perfect
• Leaderboards: Perfect

1kalin

Redis Production Engineering — Quick Reference

Complete guide to Redis in production. Covers architecture decisions, data modeling, caching patterns, rate limiting, distributed locking, HA, security, and monitoring.

When to Use Redis

Use Case	Redis Fit	Alternative
Application cache	✅ Perfect	Memcached
Session store	✅ Perfect	DB sessions

1kalin

Engineering Manager Operating System

A complete framework for running high-performing engineering teams.

Team Health Diagnostic

Score these 8 signals (1-5 each):

1. Delivery velocity
2. Team morale
3. Technical quality

1kalin

MCP Engineering — Build Production-Grade MCP Servers

Model Context Protocol (MCP) is the USB-C for AI — one protocol to connect LLMs to any external service.

This guide covers the complete lifecycle:

Core Architecture

MCP has 3 primitives:

• Tools — Execute actions (create_issue, query_db)