WebGuerrilla - 11:10 pm on Apr 8, 2001 (gmt 0) If you find one, please let me know.
I haven't come across any tool that will summarize a page and insert the summary into the description. If you leave out the description, the first chunk of text will be the default description. Depending on how your page is layed out, this might be the first paragraph of text, so you might not need such a tool.
If you find one, please let me know.