Here is a list of all documented files with brief descriptions:

stlab
algorithm
reverse.hpp	Reverse algorithms for iterators and intrusive forward / bidirectional sequences
concurrency
await.hpp	Blocking wait helpers for futures (await, await_for, …)
channel.hpp	CSP-style channels (sender/receiver) for reusable processing graphs
concurrency.hpp	Umbrella include for the concurrency module
future.hpp	Futures, packaged tasks, and coroutine integration
progress.hpp	Progress tracking wrapper for concurrent tasks
ready_future.hpp	Factory functions for already-resolved futures
serial_queue.hpp	Serial executor and scheduling modes built on futures
traits.hpp	Type traits and detection helpers used by the concurrency library
tuple_algorithm.hpp	Tuple algorithms and utilities (including for future combiners)
utility.hpp	Convenience includes for ready futures and await helpers
iterator
concepts.hpp	Iterator concepts when the compiler supports C++20 concepts
set_next.hpp	Intrusive forward/bidirectional iterator helpers (set_next, splice, skip)
test
model.hpp	Test-only instrumented types for verifying move/copy/destroy behavior
forest.hpp	Forest (tree-of-sequences) iterators, ranges, and algorithms
forest_algorithms.hpp	Forest utilities in namespace stlab::forests (shape checks, flatten/transcribe, etc.)
functional.hpp	Reference unwrapping and related functional helpers
memory.hpp	Small memory-related utilities (make_weak_ptr)
scope.hpp	Bind an object’s lifetime to a callable’s execution (scope)
utility.hpp	Type utilities (move, copy, static_max, etc.)
version.hpp	Preprocessor macros for the library version