# How Wix Used Context Engineering for an AI Scheduling Assistant

DevFeed: [How Wix Used Context Engineering for an AI Scheduling Assistant](<https://devfeed.tech/articles/the-art-behind-better-ai-how-we-achieved-a-46-speed-boost-and-23-cost-reduction-22640.md>)

Original publisher: [Read original article](<https://www.wix.engineering/post/the-art-behind-better-ai-how-we-achieved-a-46-speed-boost-and-23-cost-reduction>)

Author: Wix Engineering

Published: 2025-12-09T08:38:23Z

Content type: article

Language: en

Sources: [Wix Engineering](<https://devfeed.tech/sources/wix-engineering.md>)

Topics: [context](<https://devfeed.tech/topics/context.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [AI Agent](<https://devfeed.tech/topics/ai-agent.md>), [Large Language Model](<https://devfeed.tech/topics/llm.md>), [Development](<https://devfeed.tech/topics/development.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [ai](<https://devfeed.tech/tags/ai.md>), [context-engineering](<https://devfeed.tech/tags/context-engineering.md>), [data](<https://devfeed.tech/tags/data.md>), [llm](<https://devfeed.tech/tags/llm.md>), [prompt-engineering](<https://devfeed.tech/tags/prompt-engineering.md>)

## AI overview

Wix describes using context engineering to prepare, structure, and optimize data before sending it to an LLM for an AI scheduling assistant. The article explains how this preprocessing approach supports ranked candidate matching and enables use of the faster, lower-cost Gemini Flash 2.0 model.

## Source excerpt

Intro: The Limits of Prompt Engineering In modern AI agent development, many teams, including ours at Wix , start with an intense focus on prompt engineering , carefully crafting instructions for the LLM. We iterated endlessly on system messages and instruction sets to solve a core problem: our AI scheduling assistant was struggling with vague requests, such as "Schedule a meeting with Jake." This simple sentence triggers a surprisingly complex challenge. The system must identify which...