prd-v05-technical-stack-selection

# Technical Stack Selection Make technology decisions for every capability your product needs — starting with what you already have, then evaluating what fits, then deciding what to build. Position in workflow: v0.5 Risk Discovery Interview → **v0.5 Technical Stack Selection** → v0.6 Architecture Design ## Consumes This skill requires prior work from v0.3-v0.5: - **FEA-\* feature entries** (from v0.3 Features Value Planning) — Every feature translates to technical capability requirements; derives which capability areas need technology decisions - **SCR-\* screen entries** (from v0.4 Screen Flow Definition) — Screen count and component complexity informs frontend technology needs; DES- components reveal design system constraints - **RISK-\* risk entries** (from v0.5 Risk Discovery Interview) — RISK- constraints directly affect technology choices (RISK-003: latency → choose edge hosting; RISK-004: compliance → choose HIPAA-ready provider) - **Existing TECH-\* entries** (from prior products if brownfield) — If product family exists, inherited technology decisions constrain new choices - **Product family information** (from user discovery if brownfield) — Shared infrastructure, existing databases, established frameworks narrow the evaluation space This skill assumes v0.5 Risk Discovery Interview is complete and FEA-/SCR-/RISK- entries provide the constraint foundation. ## Produces This skill creates/updates: - **TECH-\* entries** (technology decisions, decision type + ra...