diff --git a/README.md b/README.md
index 7b23eb5249df47b2d791be981a24f67aad9d463d..bbcd657d753f52989ce124a0d1f2d13802310f8a 100644
--- a/README.md
+++ b/README.md
@@ -85,6 +85,23 @@ command before the model can create a new session. Maybe telling it about the
 archival command, but to never run it without operator interaction, would be
 sufficient.
 
+Every LLM-oriented sub-command is tracked as an event in a global SQLite
+database in `$XDG_CONFIG_HOME/nasin-pona/`. Sub-commands that do anything to
+modify either created tasks or set goals require a reason ("operator said so" is
+insufficiently detailed, but otherwise acceptable).
+
+The interactive, human-focused sub-commands are for watching these events and
+the resulting list as they change in realtime, and for exporting a session with
+all of its events as Markdown. The goal and description and tasks and their
+descriptions are rendered at the top of the UI and updated based on database
+events using some Charm libraries. Change events are underneath the rendered
+state, sorted most recent (top) to least recent (bottom).
+
+Each session is working-directory-scoped so the model doesn't have to provide a
+session ID or something for each invocation. This is why there are `np s` and
+`np a` commands for `s`tarting and `a`rchiving a session. Worktrees allow for
+parallel sessions.
+
 ## The name
 
 Is [toki pona](https://tokipona.org/). [_nasin_](https://nimi.li/nasin) occupies