C source code of a small utility to print out Inform debugging files, by Graham Nelson for use with Inform release 5.4 or later
description of the Inform debugging information format
infoclues (see below) compiled for DOS by Bonni Mierzejewska. Source code, executable, and description.
C source code of a small utility to convert UHS-format hint files to an Inform include file which runs an "Invisiclues"-style menu of hints, by Graham Nelson
description of the Infoclues utility
infoclues, ported to the Macintosh MPW by Robert Stone. Binary, source code, description, and a test file. Needs MPW or ToolServer to run.