Glossary

The words, without the shrug

Every term the courses use, defined in one line and then in a paragraph. Written to be read out of order.

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Agent

AI in the stack

A model that can take actions, not just produce text.

A language model given a set of tools it may call, allowed to loop: decide, act, look at the result, decide again. The important design question is not accuracy but blast radius: what the worst wrong action can reach.

See also Tool use, Blast radius, Prompt injection

Prompt injection

AI in the stack

Hostile instructions hidden in content a model reads.

A web page, email or uploaded file containing text aimed at the model rather than the reader. There is no reliable filter, because instructions and data arrive through the same channel. Limit what the agent can do instead.

See also Agent, Blast radius, Tool use