Postscript, since the essay argues for doing this early. My own Agent Card went live while I was writing this one: katyashalel.com/.well-k…

It declares one narrow skill, canonical-facts-lookup. Ask it who I am, what a term means and where it was introduced, or what I currently offer, and every record comes back with a source URL and a date, so a calling agent can check the claim instead of trusting it. Boundaries are declared too: published facts only, no opinions, no guarantees about anyone’s ranking inside any AI system.

Try it: katyashalel.com/api/age…