====== Impact Analysis & Graph ======

CodeDB provides two powerful tools for understanding how files connect: Impact Analysis for tracing dependency chains, and the interactive Graph for visual exploration.

===== Impact Analysis =====

Impact Analysis traces the downstream effects of changing a file. It answers the question: "If I change this file, what else could be affected?"

=== Running an Analysis ===

  - Open the bottom panel (⌘J)
  - Click the **Impact** tab
  - Click **Analyze Current File** (or open a file first)
  - Set the **Depth** (1–20) to control how many levels of dependencies to trace
  - Results show all files that directly or transitively depend on the selected file

=== Reading the Results ===

The impact tree shows files organized by depth level:

  * **Level 1** — files that directly depend on the analyzed file
  * **Level 2** — files that depend on Level 1 files
  * **Level N** — transitive dependencies at depth N

This helps you assess the blast radius of changes before making them.

===== Graph Visualization =====

The Graph tab renders your files and relations as an interactive node-link diagram on a canvas.

=== Using the Graph ===

  - Open the bottom panel (⌘J)
  - Click the **Graph** tab
  - Files appear as nodes, relations as connecting edges
  - **Drag** nodes to rearrange the layout
  - **Zoom** to explore different areas

=== What the Graph Shows ===

  * Each **node** represents a file in your database
  * Each **edge** represents a relation between two files
  * Node labels show file names
  * Edge connections show the direction of the relationship

**Tip:**
The Graph is especially useful for identifying clusters of tightly-coupled files, isolated files with no connections, and circular dependencies.