AI Software Delivery, production software with AI-generated code you own | yaab
yaab
Service · AI Software Delivery

Production software,
delivered in weeks.
The AI writes the code, you own all of it.

yaab builds your product as finished, production software. The code is AI-generated and judged by senior engineers who have shipped for years. Many clients start here: something specific, delivered in weeks, and you own every line.

The shift

When code generation is instant, the bottleneck moves from writing code by hand to direction and review. We changed our delivery to match: AI generates the code, senior engineers direct it, judge it, and ship it. The output is finished software you own.

How it works

Four steps. One human gate that matters.

1
Scope & direct

A senior engineer maps what you need and writes the spec the AI builds against.

2
AI generates

All the code is AI-generated against that spec, across the full stack.

3
A second agent judges, an engineer signs off

Every change is reviewed by a separate adversarial agent and then approved by a senior engineer. Generation is fast; the gate is human.

4
We ship production code you own

Finished, documented, tested, and yours, repo and IP included.

The critical input

Context, not a better prompt.

The difference between AI that underperforms and AI that delivers is not a cleverer prompt, it is context. We give the AI two things before it writes a line: how the system is today, and what it should do. Without them the AI improvises; with them it builds against reality.

How the system is today

The engineering brain: a live knowledge graph of your code and infrastructure, refreshed with each commit.

What it should do

The specification: your intent and the project's rules, written down and reviewable.

Spec-driven, senior-gated

The spec is the source of truth, not the code.

We use Spec Kit (open source, built to work with Claude Code and the major AI coding agents), so the spec generates the implementation, it does not just guide it. The workflow is a set of versioned artifacts that live in the repo and are reviewed in the PR like any code. One spec feeds implementation, tests and QA from the same acceptance criteria, so there is no second, hand-written test plan to drift.

constitution specify clarify plan tasks analyze implement

constitution generated from your real codebase patterns · clarify & analyze optional

How we deliver

You pick the mode.

Same AI-generated, senior-judged delivery, in whatever shape fits your team.

Full delivery

We take the build end to end and hand you finished, owned software.

Embedded engineers AI-native staff aug

Our full-code-generation engineers join your team and ship inside your sprints. Staff augmentation, evolved: AI-generated, expert-directed and reviewed.

AI Automation Specialists

We embed specialists who turn the manual and repetitive parts of your SDLC (testing, CI/CD, integrations, data plumbing, releases, internal tools) into AI-driven automation, and they ship application code too.

Forward-deployed engineer

A senior engineer embeds, runs discovery, owns the spec, directs and judges the AI, and operates the result. One accountable owner, end to end.

What we build

Concrete software, shipped to production.

Web & mobile apps Backends & APIs Integrations Data pipelines Internal tools Modernization of existing systems AI features (agents, RAG, embedded capabilities) Rapid prototypes Full QA test automation
Full QA automation

When generation is instant, QA is the bottleneck. So we automate it.

From a ticket to a running regression test, with one human gate.

In a real engagement

Across roughly ten repositories, test coverage moved from single digits to the high nineties, with thousands of generated tests merged and passing in CI. Regression cycles that took days now take minutes, and the automation surfaced real bugs and secrets manual review had missed.

From ticket to tested, in one flow

A requirement becomes a spec, the AI implements it and generates the tests, a developer approves (the one required gate), it deploys on your CI/CD, and a QA card is generated for whatever needs a real environment.

A testing agent, not a script

An AI coding agent with full repo access reads the code, decides what to test, writes and runs the tests, verifies the result, and hands off what it cannot cover.

The four kinds of tests, as a pyramid

Unit, integration, contract in CI on every PR; end-to-end against the deployed environment in a real browser.

Autonomous end-to-end QA

An agent drives a real browser through the full journey. You give it the goal, it discovers the steps, and leaves evidence. Selectors self-heal when a third-party UI changes.

QA becomes judgment, not clicking

The automation handles execution; the QA engineer reviews the spec for coverage, audits the evidence, and approves the self-heal diffs.

Why us

AI is the labor. Judgment stays human.

Proven in production

The methodology behind every claim on this site runs today in real client engagements, not in a lab.

Senior engineers judge every line

Judgment, architecture, and accountability stay with people who have shipped for years.

You own everything

Code, IP, repo. No licensing back, no platform lock-in.

Distributed senior team

Engineering teams across several countries, with years shipping production software.

Your Company Brain inherits it

Finished software you own on its own, and every project is built on an engineering brain: a live knowledge graph of your code and how it connects, decisions, rules and tests included. It keeps the software maintainable and extensible, evolving with your company, and it becomes another module your Company Brain inherits.

Learn about the Brain

Powered by the Neocortex. The intelligence layer that ships with every brain and agent we build. It arrives knowing the job and keeps getting smarter with every deployment.

Meet the Neocortex
Our stack

Claude-native and pragmatic about the rest.

We work in your stack when you have one.

AI CORE

Claude (API, Code, Agent SDK), MCP servers, multi-agent orchestration, with OpenAI and Gemini where they fit.

BACKEND / FRONTEND

TypeScript (Node, Hono, Express) and Python (FastAPI). Next.js and React.

DATA

Postgres and pgvector, Redis, vector DBs, Neo4j for graph.

VOICE / MULTIMODAL

Vapi, Retell, ElevenLabs, vision and document pipelines.

EVAL / OBSERVABILITY

Eval suites and holdout testing, Langfuse and Helicone, Sentry and Datadog.

CLOUD

AWS and GCP, Firebase, Docker, Playwright for end-to-end tests.

Proof

A leading SaaS in edtech (client): an entire 66-repo codebase moved to a Claude-native, spec-driven standard in a 2-day sprint, with an engineering constitution generated from the real code, an automated security audit, full database documentation, and a QA automation suite started.

A leading SaaS in association management (long-running client): started as classic staff augmentation, their developers now on a Claude Code standard with Spec Kit, led by our embedded engineers, with custom skills merged into the client's product and full code generation for QA test automation expanding across their products.

One proven methodology across both: the same standard (constitution, Spec Kit, skill library, adoption tracking). Most of the code we deliver today is AI-generated.

Tell us what you need built.

Scope a project in one working session. Scope: defined per project, in the working session.