Ask Zico: Production Architecture And Request Flow
A system map of Ask Zico: the PHP trust boundary, Cloudflare Worker, evidence stores, model providers, operational state, and end-to-end request lifecycle.
EMAD ASHRAF · ENGINEERING PORTFOLIO
I am a staff-level software engineer focused on delivering user-centric applications from concept to deployment. I specialize in bridging engineering, product, and business needs to craft impactful solutions.

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

A long-running Coptic education platform whose PHP architecture, delivery pipeline, and modernization work support a large multilingual content library.
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.