Re. obsolete docs: parrot_assembly.pod is a really old version of pdd06, and should probably just be dumped (the last patch to it was 16 months ago, the last non-trivial patch about 2 years ago)
embed.pod should probably be reworked as a proper PDD (since pdd10_embedding.pod is empty right now) pdd12_assembly.pod -- what was the intent of this? (i.e. is there stuff that isn't covered in pdd06_pasm.pod that should go in here, or can we just dump this and recycle the number?) Simon