Open Source HVA Builder

This tool captures the purpose, domain logic, value proposition, audience, and differentiators of an online tool in a machine-readable specification. It is designed for tool developers, product managers, and SEO teams who need a precise blueprint for planning and communicating the tool's scope.
Core features include a clearly defined set of sections: Purpose, Core Logic & Features, Inputs & Outputs, Algorithms, Error & Edge Cases, Localization, and Assumptions. It distinguishes required vs optional capabilities and provides concrete examples, such as classifying a tool under the Web & SEO Tools category.
Inputs and outputs are described in detail: the tool expects domain_name, use_case, audience, and locale, and returns a structured spec payload with language blocks. The included algorithms cover rule-based domain scoring and heuristic checks aligned with SEO best practices.
This approach helps teams reduce ambiguity, accelerate development, and generate consistent documentation and content assets. The result supports AI-assisted builders by supplying deterministic prompts and structured data for downstream tooling.