diff --git a/data.toml b/data.toml
index e2c2df3..50d48e6 100644
--- a/data.toml
+++ b/data.toml
@@ -267,6 +267,16 @@ detail = "Kratos MCP provides persistent memory for AI coding tools using a Four
 category = "Memory"
 agents = ["claude-code", "cursor"]
 
+[[tools]]
+name = "Claude Code Project Index"
+website = ""
+repo = "https://github.com/ericbuess/claude-code-project-index"
+open_source = true
+summary = "CLI tool that generates architectural awareness for AI coding assistants through project indexing."
+detail = "Claude Code Project Index automatically creates PROJECT_INDEX.json files with project structure, functions, classes, and call relationships. Supports multiple programming languages and provides three usage modes for enhanced codebase understanding in AI-assisted development workflows."
+category = "Codebase understanding"
+agents = ["claude-code", "cursor"]
+
 [[tools]]
 name = "Shotgun App"
 website = ""