Theourgia

A block-graph store for LLM agents

Platforms: the ones with a measured row. The numbers the code hands to the kernel or reads back from it that differ between platforms -- open flags, errno values, signal numbers, struct sizes and field offsets -- are taken from a table of MEASURED rows, platform-numbers.sc, one per platform. What POSIX fixes stays in the code (permission bits, the wait status encoding, the file-type mask operation), a C scalar the rows do not measure (size_t) takes Chez's width for its machine type, and the signal names an evaluation reports are those whose numbers every row shares.