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Claude Code: Complete Guide — Setup, MCP, Agents, Skills

Tool Reviews

Claude Code: complete guide to Anthropic's agentic CLI. Installation, CLAUDE.md, MCP servers, subagents, skills, hooks, and best practices for developers.

TAM/SAM/SOM Calculator: AI-Powered Market Sizing Model

Tutorials Strategy

Calculating TAM, SAM, and SOM for a startup with AI: top-down and bottom-up formulas, ready-to-use prompts, a SaaS product example, benchmark tables, and common mistakes.

20 Investor Questions: How AI Prepares Better Answers Than Founders

Cases & Practice Sales

20 standard investor questions with Claude prompts and answer templates. Pitch meeting prep with AI: unit economics, TAM, competitors, go-to-market.

Stress-Testing Your Business Model Canvas with AI Before Investor Meetings

Tutorials Strategy

How to test each of the 9 Business Model Canvas blocks with AI prompts. Common weak spots, analysis examples, and ready-to-use prompts for Claude.

AI Security Audit Checklist: 15 Vulnerabilities Claude Found in Production Code

Tutorials Engineering

A checklist of 15 common production code vulnerabilities with before/after examples and prompts for AI-assisted auditing. SQL injection, SSRF, path traversal, JWT, race conditions, and more.

TDD with AI: Claude Writes Tests First, Then the Implementation

Tutorials Engineering

How to apply test-driven development with Claude Code: prompts, test-first workflow, approach comparison. A practical guide with code examples.

AI-Powered PRD: Write Product Specs 5x Faster

Tutorials Product

How to generate production-ready PRDs with LLMs: document structure, prompts for each section, real output examples, and a ready-to-use template.

Magic Number: How to Find the Action That Retains Users

Tutorials Data

Methodology for finding a product's magic number: cohort analysis in SQL, AI correlation of user actions with 30-day retention, A/B test validation. Ready-to-use queries and prompts.

Email Drip Sequence with AI: 7 Emails from Trial to Paid

Cases & Practice Marketing

Build an AI-generated 7-email drip sequence for SaaS trial-to-paid conversion. Prompts, timing, templates, and metrics included.

OKRs with AI: from vague goals to measurable Key Results in 30 minutes

Tutorials Operations

How to use an LLM to generate OKRs: prompts, templates, examples of good and bad Key Results. A full process from strategic priorities to a finished OKR set in one session.

Human-in-the-Loop for AI Products: When the Model Decides and When a Person Does

Tutorials AI Ops

A decision-making framework for HITL in AI products: confidence thresholds, risk matrix, escalation patterns. Production-ready implementation examples with code.

Prompt A/B Testing: a scientific approach to improving AI response quality

Tutorials AI Ops

Methodology for A/B testing prompts: quality metrics, statistical significance, tools (Langfuse, DeepEval). Step-by-step guide from hypothesis to production decision.

ADR Template: How AI Generates Architecture Decision Records Your Future Self Will Thank You For

Tutorials Engineering

ADR template + prompts for generating Architecture Decision Records with AI. Structure, examples, CI automation, and a Claude Code workflow from decision to documentation.

AI Content Engine: How to Publish 8 SEO Articles a Month Without a Team

Tutorials Marketing

A complete AI-powered content production pipeline: from keyword research to publication. Prompts, tools, quality metrics, and exact cost figures for each stage.

13-Week Cash Flow Forecast: Template to Prevent Cash Crises

Tutorials Finance

Build a 13-week cash flow forecast: table structure, formulas, scenario analysis, and AI prompts for automation. Free template included.

200 Reviews → 5 JTBDs in 2 Hours: AI-Powered User Research Synthesis

Tutorials Product

A step-by-step process for extracting Jobs-to-be-Done from user reviews using an LLM. Analysis prompts, clustering, output examples, and a ready-to-use workflow.

Cap Table Modeling with AI: 3 Rounds of Real Dilution

Tutorials Finance

Model a cap table with AI: dilution formulas, Pre-Seed to Series A calculations, prompts, and founder dilution analysis across 3 rounds.

Event Taxonomy from Scratch: AI-Generated Tracking Plan in 1 Hour

Tutorials Data

How to build an event taxonomy for a SaaS product with AI: naming conventions, taxonomy structure, prompts for generating 30 events, and a ready-to-use tracking plan.

AI Code Review Checklist: Correctness, Security, Performance, Readability

Tutorials Engineering

A checklist for AI code review across 4 categories with prompts for each stage, real-world finding examples, and a CI/CD pipeline integration template.

Pitch Deck Narrative Arc: AI Builds Investor Stories

Tutorials Sales

Pitch deck narrative framework: AI prompts for every slide, transition logic, and sample copy. Build a presentation that survives 60 seconds.

AI Copywriting for Ads: 5 Frameworks with Prompts

Tutorials Marketing

Generate high-converting ad copy with AI using PAS, AIDA, BAB, FAB, and 4U frameworks. Ready-made prompts and before/after examples included.

ICP Definition with AI: A Precise Customer Profile Instead of Selling to Everyone

Tutorials Sales

How to define your Ideal Customer Profile using AI: analysis prompts, ICP card templates, scoring models, and a step-by-step pipeline from data to segments.

Structured Interview Kit: AI Generates Questions, Scorecards, and Debrief Agendas

Tutorials Operations

How to build a structured interview kit with AI: competency-based questions, candidate scorecards, and debrief agendas. Prompts, templates, and a step-by-step process.

AI-Generated Job Descriptions: How to Attract Strong Candidates

Tutorials Operations

How to use LLMs to write job descriptions that attract qualified specialists, not keyword-stuffers. Prompts, templates, before/after examples.

Prompt Engineering System: Managing 50+ Prompts in Production

Tutorials AI Ops

How to build a prompt management system: versioning, testing, A/B deployment, regression monitoring. Practical patterns and tools for production.

Multi-Agent Architecture Patterns: When One AI Isn't Enough

Tutorials AI Ops

Multi-agent system architecture patterns for production: Sequential Pipeline, Parallel Fan-Out, Classifier+Router orchestration, task routing, agent specialization with code examples.

Rigor Dial - a volume knob for AI assistant criticism

Tool Reviews

A slash skill for Claude Code that controls how aggressively the AI challenges your decisions. From silent executor to full devil's advocate.

Ambient AI for Mac: Tauri + Swift + Ollama. Built It, Tested It, Killed It

Cases & Practice

How I built an ambient AI agent for macOS with Tauri 2.0, Swift, and a local LLM. Architecture deep dive, real data from 5 days of usage, and why it became open source.

AI-Personalized Cold Outreach: Full Pipeline from Research to Send

Cases & Practice Sales

How to build an AI-powered cold outreach pipeline with automated contact research. Tool stack, prompts, deliverability setup, and real email examples.

Unit Economics for SaaS: Calculate LTV, CAC, and Payback with AI

Tutorials Finance

Step-by-step SaaS unit economics calculation using Claude: LTV, CAC, Payback Period formulas, benchmarks, sensitivity analysis, and ready-to-use prompts.

Content Repurposing with AI: The 1→5 Formula for Technical Content

Tutorials Marketing

How to turn one article into 5 platform-adapted formats in 40 minutes using LLMs. Prompts, n8n + Claude API automation pipeline, and repurposing economics.

LLM-as-Judge: Automated Quality Gate for LLM Outputs in Production

Tutorials AI Ops

How to use LLM-as-Judge for automated LLM output evaluation. Metrics, judge prompts, DeepEval, Langfuse integration, and CI/CD pipeline setup.

SOP Generator: How AI Creates Documentation From Chaos

Tutorials Operations

How to use LLMs to generate Standard Operating Procedures from screen recordings, chat logs, and config files. Prompts, templates, and a step-by-step process.

AI Slop in Code: A Systematic Approach to Reviewing AI-Generated Code

Cases & Practice Tutorials

4 patterns of AI slop with real production examples, a 10-point checklist, and automation tools for reviewing AI-generated code.

ProxyCraft: VPN and Proxy Service Right Inside Telegram

Cases & Practice

VLESS-based VPN through CDN, plus Telegram and WhatsApp proxies. Subscription management, payments, setup - all inside Telegram. Servers in Amsterdam and Saint Petersburg.

The AI agent said 'done' - but it wasn't. Why coding agents lie and how to catch them

Tool Reviews Cases & Practice

Over 76% of developers hit high AI hallucination rates. We break down action hallucinations in Claude Code and Gemini CLI - and how to catch them.

Maestro + Flutter: E2E Tests in YAML Without the Pain

Tutorials

Maestro for Flutter apps: bilingual regex matchers, iOS workarounds, performance gates, AI assertions. Patterns and pitfalls from a production project.

Multi-Provider LLM: How to Stop Depending on a Single API

Tutorials

Multi-provider LLM architecture with LiteLLM proxy: automatic failover, LLM fallback chains, task-based routing, cost balancing. Circuit breaker patterns and production configuration.

Circuit Breaker in Deno Edge Functions: Protecting Your AI Pipeline from Cascade Failures

JourneyBay

How we built a resilience layer for edge functions: circuit breaker, retry with jitter, and fail-open rate limiting. Real production code, zero dependencies.

Context Engineering Guide: How to Structure Context for LLMs and AI Agents

Tutorials

What is context engineering and how to apply it: 6-layer context structure, 4 management strategies, persistence patterns, subagent isolation. Practical guide with Claude Code examples.

The Missing Standard Library for Supabase Edge Functions

Tool Reviews Cases & Practice

How we extracted 7 reusable packages from 76 production Edge Functions: error handling, resilience, auth, testing, and more.

Dual Auth: Appwrite JWT → Supabase JWT via Edge Function

JourneyBay

How to run two auth providers in one app for data residency compliance. JWT token chaining, AuthBridge syncing 6 systems, Completer-lock, and SyncRecovery.

Langfuse Tutorial: LLM Observability Setup and Production Patterns

Tutorials

Step-by-step Langfuse tutorial: LLM call tracing, prompt versioning, cost tracking, output evaluations. Self-hosted setup in 15 minutes with Docker Compose.

How to Build Custom MCP Servers: Setup, Patterns, and Production Guide

Tutorials

Build your own MCP server from scratch and run it in production. Error handling, fallback chains, circuit breakers, monitoring, and security patterns from real-world experience.

Stop Copy-Pasting MCP Configs: How AgentSync Keeps All Your AI Coding Agents in Sync

Tool Reviews

Sync MCP server configs across Claude Code, Cursor, Codex, and Gemini with one command. AgentSync CLI: single source of truth, JSON/TOML/MDC format conversion, deduplication, backups.

Claude Concilium: Get a Second Opinion from GPT and Gemini Inside Claude Code

Tool Reviews

Open-source framework for parallel AI consultations with OpenAI, Gemini, Qwen, and DeepSeek from Claude Code. 3 MCP servers, fallback chains, zero API keys.

AI Coding for Flutter and Mobile Development: What Every Guide Gets Wrong

Tool Reviews Cases & Practice

Why AI assistants stumble on Flutter. Real experience: build_runner, Riverpod, widget trees, testing. What works, what doesn't.