> Then the debugger starts when this form is evaluated. You mean the stepper using break-instrumented code? That's just a part of what one would call 'debugger

> Then the debugger starts when this form is evaluated. You mean the stepper using break-instrumented code? That's just a part of what one would call 'debugger' in Lisp. What CIDER calls 'debugger' would be mostly called 'stepper' in Lisp. http://franz.com/products/allegro-common-lisp/stepper_dialog.lhtml http://franz.com/products/allegro-common-lisp/stepper_dialog... http://www.lispworks.com/documentation/lw70/IDE-M/html/ide-m-186.htm#pgfId-853131 http://www.lispworks.com/documentation/lw70/IDE-M/html/ide-m... > Adding breakpoints is somewhat easier with cider, you don't need to call break but you can just add a breakpoint to any sexp by pressing b. LispWorks does that, too. Usually via a break icon in the window toolbar or the context menu.