In everyday life
It is like the notes a nurse leaves for the next shift: what each patient needs, what is done, what to watch for. The next nurse does not need the whole day’s story, only what lets the care go on.
One case
An agent spends a day adding text-message reminders to a clinic’s appointment system. It learns that the text provider’s test account sends only to phone numbers verified in advance, so it uses one verified number in every test. The session ends with no notes. The next morning a fresh agent writes a test with a new number, sees no message arrive, and spends 2 hours learning the same fact again.
A short document an agent writes before a session ends, so a fresh agent can continue the work. It says what is done, what is next, what traps were found, and where the evidence is.
Every case
A fresh session starts with none of the last session’s chat. What the last agent learned, the next one either reads in a file or learns again the slow way. A handoff closes that gap. A good one is short: the goal, what is done, what is next, the traps found, and links to the plan, the tickets and the commits instead of copies of them. It leaves out secretsPasswords, keys and tokens that unlock a system. They never go into notes, chats or code..
The word
Engineers call this
Before you end or reset a long session, have the agent write a handoff. Link to the plan and the commits; do not copy them.