---
title: "Fenced code block: glossary: Agent Ready HTML"
description: "Fenced code block defined: Code set off by triple backticks with a language tag, so agents can separate code from prose. A dated, sourced example follows."
canonical: https://agentreadyhtml.com/glossary/fenced-code-block/
site: "Agent Ready HTML"
last_updated: 2026-11-04
section: "Glossary"
---

# Fenced code block: glossary: Agent Ready HTML

> Fenced code block defined: Code set off by triple backticks with a language tag, so agents can separate code from prose. A dated, sourced example follows.

Source: https://agentreadyhtml.com/glossary/fenced-code-block/
Site: Agent Ready HTML
Last reviewed: 2026-11-04

# Fenced code block

In short

Code set off by triple backticks with a language tag, so agents can separate code from prose. Example: Of 119 runs whose answer included code, 73 contained lines copied verbatim from a fetched page. Related terms: Answer provenance, File list, Edge conversion.

## Source of the example

The example in the summary above is from [vercel.com](https://vercel.com/kb/guide/make-your-site-readable-by-ai-agents), read 4 November 2026.

## Where it shows up on this site

-   [Guide: how docs sites get cited](https://agentreadyhtml.com/guides/how-docs-sites-get-cited/)

## Neighbouring terms

-   [Answer provenance](https://agentreadyhtml.com/glossary/answer-provenance/): Which fetched page an agent answer can be traced to.
-   [File list](https://agentreadyhtml.com/glossary/file-list/): An H2 section in llms.txt holding a markdown list of links in the form \[name\](url), optionally followed by a colon and notes.
-   [Edge conversion](https://agentreadyhtml.com/glossary/edge-conversion/): Turning origin HTML into another format at the CDN, without changing the origin.

## Sources

1.  [vercel.com](https://vercel.com/kb/guide/make-your-site-readable-by-ai-agents) https://vercel.com/kb/guide/make-your-site-readable-by-ai-agents, read 4 November 2026

Last reviewed 4 November 2026

Edition

Crawl

2026-11-04

Page updated

2026-11-04

Method

How the viewer reads a page, how a file is graded and how a platform is scored: [the method page](https://agentreadyhtml.com/method/).