Batch multiple file operations (read, grep, glob, ls, tail, head) into a single Bash round-trip. Instead of N separate Read/Grep/Glob tool calls — each re-paying the cached context prefix — one ./supertool call handles them all. Includes auto-promote (concrete glob becomes read, single-file grep includes full file), enforcement mode that blocks redundant built-in tools, and per-call logging with caller tracking. Python 3.6+, stdlib-only, 80 tests.