Hi kiddo!
A consular agent is someone who works for a foreign country, like France or Mexico, in a different country, like the United States. Their job is to help people who are from their home country who might have some problems while they are in the foreign country. For example, if a French person needs help with their passport in the United States, they can talk to a French consular agent who works in the United States. The French consular agent is like a helper or a friend for French people who are in the United States and might need some assistance.
Hope that helps, kiddo!