ARCHIVE
QUERY = 'contents'; TYPE = 'all' // 135 rows
ADR vs Spec-Driven Development: Why, What, and Using Both
Architecture Decision Records (ADR) and OpenSpec serve complementary roles: ADR answers 'why' a decision was made, spec defines 'what' gets built. How they work together in AI-assisted development.
LLM Behavioral Failure Modes: 12 Failure Patterns and the Defense Map
LLMs forget instructions in long sessions, fabricate information, and agree with you against their own answer. A pillar map of 12 systematic failure modes and the defense layers that address them.
From OpenSpec to Brainstorm + Court: Spec-Driven Workflow with Worktree
Evolution from OpenSpec CLI to a brainstorm + court pipeline, multi-AI evaluation, and parallel spec-driven development with git worktree.
GA4 Source/Medium Debugging: Detecting the Real Source with First-Party Cookies
First-party cookie based source tagging implementation to detect the real origin of purchase events showing as (direct)/(none) in GA4. GTM Custom HTML tags, cookie structure, GA4 custom dimension setup, and debug tools.
GA4 Attribution Reports: Direct Inflation, Model Selection, and Finding the Real Source
Why does the (direct)/(none) share inflate in GA4 purchase reports? Attribution model differences, 6 root causes of direct inflation, auditing your current setup, and real source detection with first-party cookies.
GA4 and Google Ads Data Controls Are Merging: Preparing for June 2026
Google is merging GA4 and Google Ads data controls. From June 15, 2026 Consent Mode becomes the single control point and Google Signals' role narrows. The pre-June checklist.
You Added a Consent Banner, Your Traffic Dropped 30%: GDPR and KVKK's Impact on Measurement
Why GA4 data drops after adding a cookie consent banner, how Consent Mode v2 works, and how to compensate for measurement losses.
AI Pair Programming: Coffee Debt, Gamifying Error Tracking
AI coding assistants make mistakes. Edit commands fail to match, bash scripts crash, users have to step in and correct. The point isn't getting frustrated at errors, it's logging them and extracting patterns. The Coffee Debt system does exactly that.
How dataLayer Works: The Shared Layer for GTM, gtag.js, and Consent Mode
dataLayer is not exclusive to Google Tag Manager — gtag.js and Consent Mode V2 use the same object. We explain why initialization order causes silent data loss and the difference between push() and array declaration.
Funnel Analysis: Visualizing and Diagnosing Conversion Problems
A funnel chart alone does not diagnose the problem. Identifying real drop-off causes requires understanding funnel models, GA4 Funnel Exploration features, and common analysis mistakes.
Conversion Rate: Correct Calculation, Common Mistakes, and Optimization
Blended conversion rate is misleading. A CR calculated without segmenting by traffic source, device, and funnel stage does not reflect actual performance.
Customer Statuses: How CRM Definitions Impact Attribution and Forecasting
Lead, MQL, SQL, active, churned. When customer status definitions are misconfigured in your CRM, attribution breaks and forecasting misleads. A guide to getting it right.
Customer Journey: From Linear Funnel to Circular Model
The traditional funnel does not cover post-purchase behavior. The McKinsey CDJ model, loyalty loop concept, and journey mapping make it possible to map the entire customer experience.
T-Soft Cookie Law and Google Consent Mode V2 Incompatibility: Analysis and Solution
Logic errors in T-Soft's cookie law structure, Google Consent Mode V2 incompatibility, and a GTM Custom HTML solution using monkey-patching.
GA4 Ecommerce Events: Complete dataLayer Implementation Guide
Learn how to implement all 13 GA4 ecommerce events via dataLayer, clear the ecommerce object properly, and configure GTM for accurate sales tracking.