Category: AI Engineering

A system map of Ask Zico: the PHP trust boundary, Cloudflare Worker, evidence stores, model providers, operational state, and end-to-end request lifecycle.

The project-specific evidence behind Ask Zico's controlled retrieval, stable identity, internal semantic routing, and application-owned ranking.

How Ask Zico preserves readable Arabic, normalized search text, deterministic per-build IDs, metadata, and coordinated retrieval artifacts.

The launched Ask Zico retrieval pipeline: Arabic normalization, semantic routing, Vectorize, lexical shards, filters, rank fusion, and KV hydration.

How Ask Zico compacts evidence, routes provider capacity, validates citation IDs, refreshes follow-up evidence, and deliberately falls back.

A layered evaluation method for Arabic retrieval, answer correctness, citation precision, refusals, regressions, and production feedback.

How the launched Ask Zico interface uses Arabic-first copy, visible sources, deliberate fallback, quota states, feedback, and mobile reading behavior to calibrate trust.

How Ask Zico uses structured D1 events, retrieval metadata, provider attempts, quota outcomes, CPU phases, and message-linked feedback without publishing private traffic.

A dated, privacy-safe cost model for Ask Zico covering exact quota reservation, provider routing, compact context, fallback, counters, and alerts.

A launched source-grounded Arabic assistant built around controlled retrieval, conservative answers, and evidence-first UX.