Jaroslaw Wasowski

Comparing 15 Spec-Driven Development Frameworks, Artifacts, and Decision Paths— SDD

From Spec-Kit at ~90k stars to MUSUBI at 28 — a full ecosystem map with an 8-dimensional matrix and decision paths per context.

Stop Writing Specs. Start Writing Facts. The Entire SDD Movement Is Already Obsolete.

One test survived Sonnet 3.5, 3.7, 4, and Opus 4.5+. The spec needed four reinterpretations.

SDD Writing Specifications for AI: BDD as the Missing Link — Spec-Driven Development

BDD is the missing specification language in the era when AI writes code. One Given/When/Then scenario = business spec + unit…

Spec Driven Development — Three Maturity Levels Every AI Team Should Know

Spec Driven Development is a maturity ladder — from CLAUDE.md (spec-first) through a living specification (spec-anchored) to code as a…

Your AI SDD Specification Isn’t Incomplete — It Just Lacks DDD — Spec-Driven Development

Five DDD artifacts as spec elements in Spec-Driven Development Level 1: Ubiquitous Language, Bounded Context Canvas, Context Map, Aggregate…

ROI of Spec-Driven Development: how to calculate time-to-market and defend it to the board

The real savings from SDD come from shift-left, not from faster code. Here’s a three-component ROI model you can defend to the board number…

SDD — Designing a Spec That Survives Code Generation — Spec-First — Spec-Driven Development

Five specification types with different lifecycles — and why maintaining everything is the wrong answer to spec-in-the-drawer.

Spec-Driven Development 2026–2030: Forecasts, Trends, and Two Scenarios for the Future

Where Spec-Driven Development will be in 2030 — a trend map grounded in 2026 data, lock-in and skill atrophy risks, and two contrasting…

Comprehension Bottleneck — Architect’s New Job in Agentic Software Delivery

Comprehension debt is the new bottleneck. Three SDD artifacts your team needs and six areas an architect never delegates to an agent.

5 AI Agent Failure Modes That SDD 2.0 Blocks Architecturally

Plausible bullshit, the single-agent ceiling, and spec drift — what the three pillars of Objective-Validation Development actually block.

SDD and automated documentation generation: when the spec becomes the source of truth

Outdated documentation is an architecture problem, not a discipline problem. How spec-driven development turns the spec into the source of…

The Loudest Proof That SDD Works at Scale Is One Account, Not an Audit — Mercado Libre

Full case study of SDD adoption at Mercado Libre — what’s confirmed, what’s a lead, what’s missing, and how to read enterprise SDD evidence…

Spec-Driven Development in Regulated Industries — Audit, Traceability, and Proof of Compliance

In regulated industries, spec is legal evidence, and SDD produces that artefact. But the chain ends at a non-delegable human signature.

Compiler vs Interpreter — Why LangGraph Is Becoming Your Hot Path Cost Center

Agentic workflow distillation compiles a multi-step agent process into smaller model weights — when it beats runtime and what breaks the…

One Bank Runs KYC With 10 Agent Squads and 5 People — Inside the Agent-Factory Blueprint

How an architect reads the McKinsey framework: business layer, operations, governance, people, infrastructure — five layers that must work

Coding Agent Index 2026 — Benchmarking Full Agent Stacks (Model + Harness)

Coding Agent Index is the first independent benchmark of full agent stacks. What it measures, what it doesn’t cover, and how to evaluate…

AI-assisted spec writing: conversational specs, 5 techniques, and spec hallucination | SDD

Managing a team with AI agents — the playbook for when review becomes the bottleneck

Teams with AI agents are merging +98% more PRs — and delivery is flat. The manager’s playbook: cap agent capacity to what humans can…

I Compared 5 Chinese Open-Source LLMs Against GPT-4 for Enterprise RAG

Verdict on DeepSeek, Qwen, and GLM — and what it actually costs to leave the OpenAI API.

Designing the Three Trust Cards: HITL, HOTL, HMA — New SDLC

Human In The Loop, Human On The Loop, Human Must Approve— why ‘the developer is dying’ is a myth, and the real shift is role…

AI Governance for AI Agents Starts with 12 Functions, Not a Program

The build-it-anyway engineering checklist for every AI service — your first step toward EU AI Act compliance, before any formal program.

Intent-Driven Development: 5 IDD Architect Decisions for 2026

Why a spec alone doesn’t close the coordination gap between agents, and five architect decisions that do.

Formal Verification in Spec-Driven Development — Enterprise Level

In regulated enterprise, a specification becomes an executable contract. Why AI-generated code must be proven with formal methods, not just…

AI Governance Like a Power Plant Control Room — Governance Stack

NIST measures engine temperature, ISO describes the response procedure, EU AI Act sets the traffic rules.

Vendor Lock-In in Spec-Driven Development — Five Dependency Layers and How to Price Them

SDD doesn’t eliminate vendor lock-in — it moves it up: from model to format, toolchain, and nondeterministic generator. A map of five…