1.0 link ANDYGROVE.SYSTEMS Continuing Professional Development & Operations Research Collective https://andygrove.systems/education ANDYGROVE.SYSTEMS — High Output Operations & Fresh Preprints Upskilling Hub https://andygrove.systems 86400 https://andygrove.systems/og-card.png 1200 630 https://andygrove.systems/south-korea/eq-10 EQ-10 (Prompt Prefix KV-Cache Hit Rate & Paired Indicator Guardrail) applied by IE/OR specialists in South Korea: C_turn(k) = T_prefix · [ η_hit c_cache + (1 − η_hit) c_in ] + T_{Δ,k} c_in + T_{out,k} c_out. Locking static rubrics and tool schemas in an immutable prefix (c_cache ≈ 0.10 c_in) pushes η_hit ≥ 0.90, cutting multi-turn input cost 60–80% while paired eval error indicators guard against context truncation drift. | Fresh Preprints: https://andygrove.systems/preprints | 42-Hr CPD Hub: https://andygrove.systems/education (Independent platform; not affiliated with Intel Corporation or the Grove family)