SDD Lite
A lightweight structured workflow for AI-assisted design and development work.
SDD Lite is a small public template for moving beyond one-off vibe coding. It helps AI-assisted projects stay scoped, reviewable and recoverable by capturing intent, evidence, constraints, implementation steps, validation and decisions in one file.
The problem
Fast AI-assisted prototyping is useful, but it often leaves too little context behind. When the work needs to be revisited, continued in a new chat, handed over or validated later, missing intent and unclear scope become the problem.
What SDD Lite structures
SDD Lite keeps the smallest useful structure in one file: intent, evidence, constraints, scope, implementation steps, validation and decisions. It is intentionally lighter than a full spec-driven workflow, but structured enough to make the work reviewable.
Method model
what the work is trying to achieve
what the AI should use as source material
what must not change
what is in and out
how the result will be checked
what changed and why
Each element is small enough to stay current, structured enough to make the work reviewable.
Where it fits
SDD Lite sits alongside my Component Contract Lab work. CCL explores how executable component contracts reduce implementation drift. SDD Lite describes the working structure around that kind of AI-assisted implementation: how intent is captured, scope is controlled, output is validated and decisions remain traceable.
Public template
The public repository contains the template, reusable prompts and a small worked example.