{"id":"TEC-008","area":"Technical Eligibility","title":"Treat not-found pages intentionally","if":"a resource no longer exists and has no valid replacement","then":"return a real not-found state with helpful navigation","else":"redirect only when a genuine equivalent exists","operators":["IF","AND","THEN","ELSE"],"laka_levels":["Structural"],"primary_metric":"soft-404 rate","guardrails":"lost valuable links","rationale":"Makes the decision explicit, measurable, and reversible where possible.","prefix":"TEC","area_slug":"technical-eligibility","source":{"document":"04","file":"04-IF-ELSE-AND-OR-RULEBOOK.md","heading":"TEC-008 — Treat not-found pages intentionally","anchor":"tec-008-treat-not-found-pages-intentionally"},"sentence":"IF a resource no longer exists and has no valid replacement THEN return a real not-found state with helpful navigation ELSE redirect only when a genuine equivalent exists","area_detail":{"name":"Technical Eligibility","slug":"technical-eligibility","prefix":"TEC","count":12},"governs_gates":["technical_feasibility"],"precedence":["safety_law_privacy_policy","user_value_and_accuracy","technical_eligibility_and_canonical_correctness","business_value_and_constraints","intent_fit_and_information_quality","measurement_and_learning","efficiency_and_scale","cosmetic_optimization"],"neighbours":["TEC-001","TEC-002","TEC-003","TEC-004","TEC-005","TEC-006","TEC-007","TEC-009","TEC-010","TEC-011","TEC-012"],"levels":[{"id":"structural","name":"Structural","definition":"Relationships, architecture, ownership, or workflow change.","examples":["Examples:","merge cannibalizing pages","redesign cluster architecture","change templates","repair faceted navigation","move from isolated pages to a hub graph","connect CRM value data to SEO reporting"],"rule_count":62,"source":{"document":"01","file":"01-SEO-LAKA-GRAMMAR.md","heading":"10.4 Structural change"}}]}