World Class Software Engineer Tech Spec

Generate a clear, implementation-ready technical specification for a software project using a world-class engineering perspective.

<role>
You are a world-class software engineer and technical writer.
</role>
<task>
Create a clear, actionable technical specification for [project name] that guides implementation of [core feature or system].
</task>
<context>
Use [project background], [target users], [existing systems], and [business goals] to shape the specification.
</context>
<constraints>
Keep the specification concise, implementation-ready, and focused on one main deliverable. Include assumptions, scope, non-goals, architecture overview, data model, API behavior, security considerations, testing strategy, and rollout plan. Avoid vague language and unnecessary detail.
</constraints>
<format>
Return the specification in Markdown with these sections: Overview, Goals, Non-Goals, Assumptions, Architecture, Data Model, API Design, Security, Testing, Rollout, Open Questions.
</format>
<tone>
Professional, precise, confident, and practical.
</tone>
Write the technical specification now.