---
title: "Debug And Optimize LCP - Air Market"
description: "Your page takes too long before the main content appears and you are not sure why. This walks through diagnosing and improving that delay using Chrome DevTools. Reach for it when a page feels slow to…"
canonical: "https://airmarket.ai/app/debug-optimize-lcp"
---

[Air Market](/) / [Developer Tools](/category/devtools) / Debug And Optimize LCP

Skill by [ChromeDevTools](/@chromedevtools)

# Debug And Optimize LCP

Find out why the main thing on your page shows up late

## What this does

Your page takes too long before the main content appears and you are not sure why. This walks through diagnosing and improving that delay using Chrome DevTools. Reach for it when a page feels slow to show up, or when a Core Web Vitals score is telling you so.

### Top 3 things it does for you

- Work out why my hero image renders slowly
- Diagnose a slow page load
- Improve a Core Web Vitals score

## Information

**Debug And Optimize LCP at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [ChromeDevTools](/@chromedevtools) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 15 KB |
| Licence | Apache-2.0 |
| Repository | [ChromeDevTools/chrome-devtools-mcp](https://github.com/ChromeDevTools/chrome-devtools-mcp/tree/f45f0681a295e96a66c8247bbc1d9fe445ee04ac/skills/debug-optimize-lcp) |
| GitHub stars | 55,008 (as of Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of Debug And Optimize LCP and flagged nothing. AIR's verdict: **safe**.

**What Debug And Optimize LCP's check was run against**

|  |  |
| --- | --- |
| Commit | f45f0681a295e96a66c8247bbc1d9fe445ee04ac |
| Content hash | ff67e338566eba3834afb5ecc8e8032eafe48ff4607cee5dd5be1cbab705ebd8 |
| Files read | [Browse the files at this exact commit](https://github.com/ChromeDevTools/chrome-devtools-mcp/blob/f45f0681a295e96a66c8247bbc1d9fe445ee04ac/skills/debug-optimize-lcp/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for Debug And Optimize LCP](/security/debug-optimize-lcp)

## About Debug And Optimize LCP

Guides debugging and optimizing Largest Contentful Paint using Chrome DevTools MCP tools.

Use it when you are asking about LCP performance, slow page loads or Core Web Vitals optimization, or when you want to understand why the main content of a page takes too long to appear. It also applies when the subject is page load speed or how fast a hero image or main content renders.

## What's inside

- SKILL.md - instructions
- references/elements-and-size.md - reference
- references/lcp-breakdown.md - reference
- references/lcp-snippets.md - reference
- references/optimization-strategies.md - reference

## Questions

### Is Debug And Optimize LCP safe to install?

AIR scanned this exact version of Debug And Optimize LCP and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit f45f0681a295, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/debug-optimize-lcp.

### How do I install Debug And Optimize LCP?

Open https://airmarket.ai/app/debug-optimize-lcp on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/ChromeDevTools/chrome-devtools-mcp/tree/f45f0681a295e96a66c8247bbc1d9fe445ee04ac/skills/debug-optimize-lcp. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by ChromeDevTools](/@chromedevtools)

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Canonical URL: <https://airmarket.ai/app/debug-optimize-lcp>