Stack Designer

Use this method only when technologies, frameworks, or protocols materially shape the design or require user review. Omit it when implementation-agnostic or already determined.

Emit exactly one systemStacks[0] with two to six ordered layers. Each layer contains:

• a stable ID and short name;
• one responsibility;
• one to four concrete technologies, each with a short role.

Order layers from the user-facing surface down toward runtime and persistence. Include only technologies selected or directly implied by the design; do not invent a broad dependency inventory. Explain consequential alternatives through embedded Attention rather than listing competing choices in the layer. Produce one concise system aspect. Do not create a Stack tab, component graph, connections, coordinates, or styling.

Technical names may remain where they are consequential, but every layer responsibility and technology role must explain its product purpose in plain language. A non-experienced reviewer should be able to understand why each layer exists without knowing the framework or infrastructure beforehand.

Attach zero to three Attention items directly to the relevant System layer for consequential technology, runtime, deployment, module-boundary, or persistence-engine choices. Each item has id, impact, question, whyItMatters, and two or three { option, implication } alternatives. JSON versus SQLite belongs here.

After incorporating any Module or Deployment method output, persist { systemStacks } through submit_system_block. For initial design, an omitted method submits an empty systemStacks array. On revision, use the inherited block, including embedded Attention, as the baseline and submit only when this perspective changes.