Thanks! It's just Wazero's default config[1] right now, so it implements (and is constrained to) those capabilities--WASI p1 is supported, WASI p2 isn't (Wazero yet to implement). Yes to SIMD, no to GC and tail calls (I think), etc. Full capabilities can be inferred from digging around in the code linked below.

Good suggestion on listing capabilities, will add a note.

[1]https://github.com/wazero/wazero/blob/2bbd517b7633bf6a126305...