What is an audit trail?

An audit trail is a record of every change to something, with who made it and when, kept in a form that cannot quietly be edited afterwards. Accountants have always kept one. Software started keeping one when more than one person could change the same thing, and it becomes essential the day a thing can be changed by something that is not a person.

Why AI assistants make it urgent

An AI agent can make fifty changes in a minute towards a goal you gave it in one sentence. Without a trail that names the agent separately from you, its work is indistinguishable from yours, and reviewing a day of it means reading a transcript. With one, you open the board’s history and read “Claude via Sam Ade moved BU-014 to In Progress”, and you know.

What a good trail records

• Who: a person’s name, or an assistant’s name with the person it acted for.
• What: the task, and the change — created, moved, renamed, commented, added a file.
• From and to: a move says which lane it left and which it entered.
• When, to the second.

In fenbs

Every board has a history, and every task shows its own. Assistants are recorded by name, and their changes are visibly theirs. The trail is written by the service, never by a client, so nothing an assistant does can leave it out.