# How we are using AI in Mercado Libre's accessibility team

DevFeed: [How we are using AI in Mercado Libre's accessibility team](<https://devfeed.tech/articles/how-we-are-using-ai-in-mercado-libre-s-accessibility-team-22552.md>)

Original publisher: [Read original article](<https://medium.com/mercadolibre-tech/how-we-are-using-ai-in-mercado-libres-accessibility-team-e960b83283a9?source=rss----5011f85401f0---4>)

Author: Martín Di Luzio

Published: 2025-10-08T12:58:25Z

Content type: article

Language: en

Sources: [Mercado Libre Tech](<https://devfeed.tech/sources/mercado-libre-tech.md>)

Topics: [Accessibility](<https://devfeed.tech/topics/accessibility.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Large Language Model](<https://devfeed.tech/topics/llm.md>), [Retrieval Augmented Generation (RAG)](<https://devfeed.tech/topics/retrieval-augmented-generation-rag.md>), [Automation](<https://devfeed.tech/topics/automation.md>), [Design system](<https://devfeed.tech/topics/design-system.md>)

Tags: [accessibility](<https://devfeed.tech/tags/accessibility.md>), [ai](<https://devfeed.tech/tags/ai.md>), [automation](<https://devfeed.tech/tags/automation.md>), [developers](<https://devfeed.tech/tags/developers.md>), [large-language-model](<https://devfeed.tech/tags/large-language-model.md>), [retrieval-augmented-generation-rag](<https://devfeed.tech/tags/retrieval-augmented-generation-rag.md>), [web-content-accessibility-guidelines](<https://devfeed.tech/tags/web-content-accessibility-guidelines.md>)

## AI overview

Mercado Libre's accessibility team is exploring AI to support designers and developers, automate tasks, provide immediate answers, and encourage collective learning. Its A11Y assistant uses an LLM with Retrieval-Augmented Generation to answer questions using internal documentation, training materials, historical queries, accessibility tickets, and design-system resources. AI also adds contextual explanations and recommendations to accessibility audit tickets.

## Source excerpt

AI isn't here to replace accessibility work -- it's here to make it stronger. Today, our accessibility team faces a challenge: supporting hundreds of designers and developers with questions, reviews, and continuous improvements. To scale this impact, we're exploring how artificial intelligence (AI) can help us automate tasks, provide immediate answers, and foster collective learning. That's why we've launched several initiatives to speed up work, increase independence, and strengthen execution capacity. Note: In many of these initiatives, we rely on automatization tools available in our internal development ecosystem, Fury. The A11Y assistant for everyday workImage 1: Automation flow that integrates different nodes, from the user's question to obtaining relevant information, processing it, and providing an answer.How does it work? This assistant: Activates when mentioned in the support channel. Processes both messages and screen images. Consults internal documentation, training materials, historical queries, previously reported accessibility tickets, and our design system. Uses a large language model (LLM) with Retrieval-Augmented Generation (RAG) to deliver reliable answers. The result: contextualized responses grounded in internal resources and standards. From the query initiation to gathering additional context, and finally to delivering a response backed by verified information, the entire pipeline is crucial. This approach helps avoid "hallucinations" (invented or incorrect answers) and ensures the A11Y assistant stays focused on trusted resources. Thus, it provides solutions and resources that are not only accurate but also directly applicable and aligned with Mercado Libre's internal accessibility standards and tools. Understanding problems better to deliver better solutions One of our biggest learnings is that teams need information that's clear and easy to understand -- not just technical reports. In manual accessibility audits, we provide technical details s