1. CatkinA CMake-based build system that is used to build all packages in ROS.
3. GeometryPackages for common geometric calculations including the ROS transform library, "tf". Also includes ROS bindings for "bullet" physics engine and "kdl" kinematics/dynamics package.
5. Geometry2A set of ROS packages for keeping track of coordinate transforms.
6. Executive smachA procedural python-based task execution framework with ROS integration.
8. ActionlibProvides a standardized interface for interfacing with preemptable tasks. Examples of this include moving the base to a target location, performing a laser scan and returning the resulting point cloud, detecting the handle of a door, etc.
10. Cmake modulesA common repository for CMake Modules which are not distributed with CMake but are commonly used by ROS packages.
11. RosdistroThis repo maintains a lists of repositories for each ROS distribution
12. Ros commROS communications-related packages, including core client libraries (roscpp, rospy, roslisp) and graph introspection tools (rostopic, rosnode, rosservice, rosparam).
14. urdfRepository for URDF parsing code
16. roslispClient library for writing ROS nodes in idiomatic Common Lisp
17. rospackA command-line tool for retrieving information about ROS packages available on the filesystem
20. kdl parserkdl_parser and kdl_parser_py provide tools to construct a KDL tree from an XML robot representation in URDF.