Spec-driven development

Spec-driven development: agree on it before we build it

A clear, versioned specification is the single source of truth for your project. Stakeholders approve it, engineers build to it, tests verify it — and AI coding assistants stay on track because of it.

What we deliver

Specifications that drive the whole delivery

We bring spec-driven development to your projects, or help your team adopt it as a repeatable practice.

Requirements & specifications

Plain-language specs with user stories, business rules and measurable acceptance criteria.

API contract design

OpenAPI and schema-first API design so front-end, back-end and partners can build in parallel.

Executable acceptance tests

Given/When/Then scenarios that run as automated tests and prove each requirement is met.

Specs for AI coding agents

Structured specs and task plans that make AI coding assistants accurate, consistent and reviewable.

Team coaching

Workshops and templates to help your product and engineering teams write and maintain good specs.

Legacy system documentation

Reverse-engineer undocumented systems into specifications before modernization begins.

Why BlueMind Tech

Why spec-driven development works

Most software overruns come from misunderstanding, not bad code. When requirements live in scattered emails and meetings, each person builds a different picture of “done.”

Spec-driven development writes that picture down, gets it approved, and links it to automated tests. Changes are deliberate, estimates are grounded and everyone can see exactly what is being delivered.

  • Fewer surprises and less rework
  • Estimates based on agreed scope
  • Parallel work through clear contracts
  • Traceability from requirement to test to code
  • Better, safer output from AI coding tools
  • Living documentation that stays current

How we work

The spec-driven workflow

  1. 01

    Specify

    Capture goals, requirements and acceptance criteria in a versioned specification.

  2. 02

    Plan

    Break the specification into technical design and small, testable tasks.

  3. 03

    Implement

    Build each task against its acceptance tests, with humans and AI agents working from the same spec.

  4. 04

    Verify

    Automated tests confirm each requirement; the spec is updated with every approved change.

Frequently asked questions

What is spec-driven development?

Spec-driven development is an approach where a written, versioned specification of behavior and acceptance criteria is created and approved before implementation. The specification then drives design, code and automated tests.

How does spec-driven development help with AI coding assistants?

AI coding assistants produce much better results when they work from a precise specification and task plan. The spec constrains what the assistant builds, and acceptance tests verify its output automatically.

Is spec-driven development the same as waterfall?

No. Specifications are written in small, iterative slices and updated as you learn. The difference from ad-hoc agile is that each slice is written down and agreed before it is built.

How does it relate to test-driven development?

They complement each other. The specification defines what the system must do; test-driven development turns each requirement into automated tests before the code is written.

Start your next project with a clear spec

Tell us what you want to build. We will turn it into a specification with scope, acceptance criteria and a phased estimate.

Plan your project