1/ That depends on the agent. If the person who wrote that agent is still around, it's polite to ask them first. It's also worth making sure there's nothing that would clash with the agent's existing backstory (for instance, if you claimed your agent was recruited by Acacia 'in her third year as an assassin', you'd run up against the fact that Acy was only an assassin for about a year and a half).

2/ Agent Mmrrowl would like to say hello. :P On a more relevant note, a lot of agents don't wear uniform anyway. The classic drawing of Jay and Acacia shows them in jeans. Since the uniform gets disguised like everything else on missions, and since no one not in the PPC should be in HQ, the only real requirement seems to be the flashpatch.

3/ Ahahahaha.

3 actual answer/ It varies. Some agents have described fairly comprehensive training, some are just handed several canon books (and a copy of the Manual) and sent off to a Response Centre. Go with whatever makes the most narrative sense; the PPC has never claimed consistancy in its proceedures.

hS

Your agent is from the Cats continuum, right? Is (s)he somewhat humanlike? If so, I still have the patterns for a uniform designed with animal comfort right over...here...no...there...somewhere, anyway. Randall loves it (more than his last uniform). I'm sure that the PPC seamstresses would be modify it to fit your agent, if you want. It's nice and loose, and easy to slip out of if it gets to be too restraining.

1 - Yes, many of our agents have been recruited by other agents, some of whom may or may not exist in canon.

2 - So long as the armband is black. That's the key thing.

3 - I'm pretty sure that agents receive *snicker* on-the-job training.