https://aacsearch.com/blog News, updates, and insights from the AACSearch team about parallel coding agents and developer productivity. en-us Mon, 12 Oct 2026 20:23:42 GMT https://aacsearch.com/blog/faceted-search-that-scales-to-millions-of-skus Why facet counts get slow as a catalogue grows, the difference between an exact and an estimated count, and how to keep faceted navigation fast without hiding filters shoppers need. Mon, 14 Sep 2026 00:00:00 GMT https://aacsearch.com/blog/faceted-search-that-scales-to-millions-of-skus Alexandr Chibilyaev https://aacsearch.com/blog/webhook-delivery-signatures-retries-and-safe-replays How AACSearch signs outbound webhooks, what happens when your endpoint is briefly down, and how an Idempotency-Key keeps a retried write from landing twice. Mon, 14 Sep 2026 00:00:00 GMT https://aacsearch.com/blog/webhook-delivery-signatures-retries-and-safe-replays Alexandr Chibilyaev https://aacsearch.com/blog/multi-tenant-search-architecture Collection namespacing on the engine proxy, full versus search key scopes, short-lived browser keys, per-organization quotas in a Durable Object and organization-scoped events — what a platform operator gets when embedding search for many customers. Sun, 13 Sep 2026 00:00:00 GMT https://aacsearch.com/blog/multi-tenant-search-architecture Alexandr Chibilyaev https://aacsearch.com/blog/what-is-a-search-os A search box answers one query. A DIY engine gives you a retrieval primitive. A Search OS is the layered system around it — query understanding, indexing, synonyms, ranking rules, curation, results and analytics — that a tenant actually controls. Here's how AACSearch implements each layer. Fri, 11 Sep 2026 00:00:00 GMT https://aacsearch.com/blog/what-is-a-search-os Alexandr Chibilyaev https://aacsearch.com/blog/measuring-relevance-golden-query-sets-ndcg Click-through rate tells you whether a ranking change helped in production. A golden query set tells you whether it's correct before you ship it. Here's how AACSearch's quality lab computes nDCG, MRR and MAP. Fri, 04 Sep 2026 00:00:00 GMT https://aacsearch.com/blog/measuring-relevance-golden-query-sets-ndcg Alexandr Chibilyaev https://aacsearch.com/blog/merchandising-rules-that-survive-catalogue-refresh How to write pins, boosts and exclusions that keep working after your product feed changes, and why ID-based rules quietly break. Fri, 28 Aug 2026 00:00:00 GMT https://aacsearch.com/blog/merchandising-rules-that-survive-catalogue-refresh Alexandr Chibilyaev https://aacsearch.com/blog/hybrid-search-reciprocal-rank-fusion How AACSearch combines lexical and vector search results into one ranked list, and why reciprocal rank fusion beats naive score blending. Fri, 21 Aug 2026 00:00:00 GMT https://aacsearch.com/blog/hybrid-search-reciprocal-rank-fusion Alexandr Chibilyaev https://aacsearch.com/blog/zero-result-rescue-ladder Why zero-result search rates spike after a catalogue import, and the layout, transliteration and broadening ladder AACSearch runs before giving up. Fri, 14 Aug 2026 00:00:00 GMT https://aacsearch.com/blog/zero-result-rescue-ladder Alexandr Chibilyaev