Spec-Driven Development Engine
Turn your spec into software
Give agents clear requirements and check the result against them. Spend less time explaining the same change twice.
Create an e-commerce store to sell my product
Set the outcome
Agree on what done means before the agent starts.
Trace every requirement
Connect each requirement to the work and checks behind it.
See what passed
See which requirements have checks and which still need coverage.
Keep decisions with the code
Review and version specs alongside the code they guide.
Leave less room for guesswork
Make the expected result clear before time is spent building it.
- Describe the resultSpell out what should happen and when.
- Keep work accountableTrace each change back to an agreed requirement.
- Catch gaps earlyResolve missing details before they turn into rework.
Know what still needs checking
Review the evidence before deciding a change is ready.
- See what is coveredConnect checks to the requirements they are meant to verify.
- Find gaps earlySee which requirements still need a check.
- Make coverage visible in reviewBring missing requirement coverage into the change review.
Break large changes into clear steps
Let agents tackle independent tasks together, with dependent work in the right order.
- Put tasks in orderFinish the foundations before starting work that depends on them.
- Achieve more in less timeGive agents independent tasks and separate workspaces.
- Keep work tied to intentEach task points back to the requirement it serves.
A shared definition of done
Agree on the result, plan the approach, and give agents clear next steps.
Requirements
Describe the behavior and conditions the finished change must meet.
Design
Record the approach, key decisions, and how the change handles failure.
Tasks
Break the build into steps linked to the requirements they serve.
One plan for everyone involved
You, the agent, the tests, and your reviewers work from the same requirements.
You, before any code
Set the outcome and boundaries before implementation starts.
The agent doing the work
Follow a task list that explains what each step is for.
The review that follows
Check changes against the requirements and their test evidence.
The next person to make a change
Understand earlier decisions without piecing them together again.
From request to verified change
Agree on the result, build to the plan, and check the evidence.
- 01
Write the plan
Set requirements, design, and tasks before implementation begins.
- 02
Build to the plan
Agents work through the tasks and keep each change linked to its requirement.
- 03
Check the evidence
See which requirements have matching tests and which still need coverage.