The idea
A prompt gives a model a task and context. A skill is a reusable pack of instructions and sometimes files or code. A workflow sets out steps. An agent can choose actions and use tools as it works toward a goal.
What to check
These labels do not tell you how much access a system has. A saved skill need not give it more freedom than a prompt. What matters is the tools it can use, the data it can reach, and the actions it can take.
Start with a small task and a clear review point. Limit access to the files and tools it needs. Require approval before an action such as sending a message. Check the result against a known source.
Try it
A system reads a folder, chooses useful files, and drafts a table. What should you check?
Check your understanding
The folder boundary, its read and write rights, its record of chosen files, and the table's sources. The label ‘agent’ does not answer any of those questions.