[galaxy-user] Preferred way to make custom tool accessible though path

Hi, I have written a simple xml wrapper to run the UCSC *bigWigToBedGraph* tool on a custom Galaxy install on Amazon cloud. The tool works as expected in this install. The xml file itself is in /mnt/galaxy/galaxy-app/tools/myTools, but I added the bigWigToBedGraph binary to the /mnt/galaxy/tools/bin/ directory, which is by default in the PATH. Alternatively, I guess I could have modified the PATH so that it includes the myTools directory. Since I would like to contribute the tool (my contribution being the wrapper) to *Galaxy Tool Shed*, I am wondering* what is the best way to include it so that it is found in the PATH* whenever the tool is installed from the Tool Shed. Thanks for your help! Sébastien