Agile Toolkit

An Agile developer needs a bunch of tools that support agile projects, following is a list of vital tools for every agile project:

1. Text Editor
2. Source Code Control System (Version Control)
3. Project Management and Tracking System
4. Unit Testing (Test Driven Development)
5. Continuous Integration
6. Deployment Automation (Build Automation)
7. Wiki

For more details please refer to Practices of an Agile Developer and Pragmatic Programmer books.