{"id":"CON-004","area":"Content, Format, and Evidence","title":"Prefer firsthand evidence where relevant","if":"the task involves reviews, demonstrations, processes, products, or lived outcomes","then":"show what was actually tested, observed, used, or built","else":"use the best available primary evidence","operators":["IF","OR","THEN","ELSE"],"laka_levels":["Major"],"primary_metric":"firsthand-evidence coverage","guardrails":"conflicts of interest","rationale":"Makes the decision explicit, measurable, and reversible where possible.","prefix":"CON","area_slug":"content-format-and-evidence","source":{"document":"04","file":"04-IF-ELSE-AND-OR-RULEBOOK.md","heading":"CON-004 — Prefer firsthand evidence where relevant","anchor":"con-004-prefer-firsthand-evidence-where-relevant"},"sentence":"IF the task involves reviews, demonstrations, processes, products, or lived outcomes THEN show what was actually tested, observed, used, or built ELSE use the best available primary evidence","area_detail":{"name":"Content, Format, and Evidence","slug":"content-format-and-evidence","prefix":"CON","count":12},"governs_gates":["information_advantage"],"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":["CON-001","CON-002","CON-003","CON-005","CON-006","CON-007","CON-008","CON-009","CON-010","CON-011","CON-012"],"levels":[{"id":"major","name":"Major","definition":"The document or campaign is substantially improved, but its role remains stable.","examples":["Examples:","rewrite the page","add original evidence","change format from prose to comparison table","build a video or calculator into the page","consolidate weak sections","launch a focused outreach campaign"],"rule_count":53,"source":{"document":"01","file":"01-SEO-LAKA-GRAMMAR.md","heading":"10.3 Major change"}}]}