> For the complete documentation index, see [llms.txt](https://docs.besmart.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.besmart.software/3d-modeling-and-design/t4r/list-of-features/link-checker.md).
# Link Checker
**Icon:** 
**Location:** ribbon Be.Smart T4R, panel Project
**Packages:** Be.Smart T4R Free | Be.Smart T4R
### **Overview**
The Link Checker is a tool that automatically checks for updates to external references in a project. If a change is detected, the Link Checker will display a notification. It helps keep track of updates to external references, ensuring that the project remains up to date.
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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.besmart.software/3d-modeling-and-design/t4r/list-of-features/link-checker.md?ask=&goal=
```
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.