[EDI] Exploring the structure of your source code (#59864)

Co-authored-by: mc <42146119+mchammer01@users.noreply.github.com>

Author: sabrowning1

content/code-security/how-tos/scan-code-for-vulnerabilities/scan-from-vs-code/exploring-the-structure-of-your-source-code.md

@@ -9,30 +9,23 @@ topics:
   - Code Security
   - Code scanning
   - CodeQL
-intro: You can use the AST viewer to display the abstract syntax tree of a {% data variables.product.prodname_codeql %} database.
+intro: Visualize how your code maps to {% data variables.product.prodname_codeql %} classes in {% data variables.product.prodname_vscode_shortname %}.
 redirect_from:
   - /code-security/codeql-for-vs-code/exploring-the-structure-of-your-source-code
   - /code-security/codeql-for-vs-code/using-the-advanced-functionality-of-the-codeql-for-vs-code-extension/exploring-the-structure-of-your-source-code
 contentType: how-tos
 ---
 
-## About the abstract syntax tree
+## Prerequisites
 
-The abstract syntax tree (AST) of a program represents the program's syntactic structure. Nodes on the AST represent elements such as statements and expressions. A {% data variables.product.prodname_codeql %} database encodes these program elements and the relationships between them through a database schema. For more information about database schemas, see [{% data variables.product.prodname_codeql %} glossary](https://codeql.github.com/docs/codeql-overview/codeql-glossary/#ql-database-schema) in the {% data variables.product.prodname_codeql %} documentation.
+To view the abstract syntax tree (AST) of a source file, you need to have an appropriate {% data variables.product.prodname_codeql %} query (usually `printAST.ql`) in your workspace. If you do not have an appropriate query, you can update your copy of the [`github/codeql`](https://github.com/github/codeql) repository from the `main` branch.
 
-{% data variables.product.prodname_codeql %} for {% data variables.product.prodname_vscode %} contains an AST viewer. The viewer consists of a graph visualization view that lets you explore the AST of a file in a {% data variables.product.prodname_codeql %} database. This helps you see which {% data variables.product.prodname_codeql %} classes correspond to which parts of your source files.
+> [!NOTE] Updating your repository may discard your query caches, making your next query runs slower.
 
 ## Viewing the abstract syntax tree of a source file
 
-> [!NOTE]
-> If you don't have an appropriate query (usually `printAST.ql`) in your workspace, the **{% data variables.product.prodname_codeql %}: View AST** command in the following steps won't work. To fix this, you can update your copy of the [`github/codeql`](https://github.com/github/codeql) repository from the `main` branch. If you do this, query caches may be discarded, so your next query runs may be slower.
-
 1. Open the "Databases" view in the extension, and right-click the database that you want to explore. Click **Add Database Source to Workspace**.
-
 1. Navigate to a {% data variables.product.prodname_codeql %} database's source file in the File Explorer.
-
-1. Run **{% data variables.product.prodname_codeql %}: View AST** from the {% data variables.product.prodname_vscode_command_palette_shortname %}. This runs a {% data variables.product.prodname_codeql %} query (usually called `printAST.ql`) over the active file, which may take a few seconds. Once the query is complete, the AST viewer will display the structure of the source file.
-
-1. To see the nested structure of the source file, click the arrows and expand the nodes.
-
-You can click a node in the AST viewer to jump to it in the source code. Conversely, if you click a section of the source code, the AST viewer displays the corresponding node.
+1. Run **{% data variables.product.prodname_codeql %}: View AST** from the {% data variables.product.prodname_vscode_command_palette_shortname %}. This runs a {% data variables.product.prodname_codeql %} query over the active file, which may take a few seconds. Once the query is complete, the AST viewer will display the structure of the source file.
+1. To see the nested structure of the source file, click the arrows and expand the nodes. These nodes represent different elements of your code, such as statements and expressions.
+1. To see the source code corresponding to a particular node, click the node in the AST viewer. Similarly, you can click a section of the source code to display the corresponding node.