How many agents can I run at once?
24 concurrent by default, with a 256-agent hard cap and a 20-per-second spawn rate. It is light enough that the machine, not the software, is usually the limit: a 32-agent soak cost 103 MB total agent RSS, and 25 sessions ran in parallel on a Core 2 Duo with 4 GB of RAM, no crashes, no faults. On a modern laptop, roughly a hundred agents fit inside about 1.5 GB of harness memory.