std:*: Standard-library modules
Mirrors Rust's standard library. Surface shaped so Rust-fluent readers recognise methods and semantics immediately.
Also contains modules with no std:: equivalent but broadly needed — std:workers (worker-pool substrate) is the principal example.
Reference
std:collections— Concurrent, shareable collection typesstd:fs— Filesystem reads, writes, metadatastd:io— Standard input/output handlesstd:net— TCP listeners and socketsstd:thread— Thread-local primitives and sleepstd:workers— Worker pool, cross-worker state, shutdown signal