Engineering blog
Practical writing for senior developers, engineering managers and technical founders — performance, data, SaaS architecture, applied AI, payments and mobile.
How our Shopify supplier-sync app holds a crashed or truncated feed: ten deterministic guards, an AI review of aggregated stats and 15 outliers, a hold-and-approve flow, and idempotent inventory writes.
How our Shopify support chat verifies who is asking before showing an order, limits guessing three ways, and uses pgvector retrieval that refuses without calling the model when the store's content has no answer.
How our Shopify app writes AI titles, descriptions, meta tags and alt text in bulk without risk: drafts instead of writes, a snapshot before every productUpdate, retry-safe merges and rollback that refuses to discard newer changes.
How our WordPress translator segments Gutenberg blocks with masked inline markup, keys a translation memory on the masked text, and after an edit sends exactly one segment per language while human edits stay protected.
How our WordPress plugin rebuilds every form's field schema on the server for CF7, WPForms and Gravity Forms, constrains and re-validates the AI's answer, and screens submissions without sending phone numbers or full emails.
How DEV3 AI Smart Coupons lets the Google Gemini API propose a personal cart-abandonment offer, then clamps type, amount, copy and coupon rules on the server so no product is discounted below cost plus margin.
How DEV3 AI Review Summarizer treats every WooCommerce review as untrusted data: redaction, a JSON fence that cannot be closed, schema limits, PHP re-sanitising, review-set hashing and locks moderators can rely on.
How DEV3 AI Content & Layout Builder turns one sentence into real Elementor containers and WPBakery rows: a builder-neutral layout tree, hard normalisation, two converters, and the thinking-budget fixes that made large JSON reliable.
