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Two new lifecycle events, session.end and session.measure, added for plugins and hooks
What
Claude Code added two new lifecycle events, session.end and session.measure, to the set of events that plugins and hooks (scripts that run automatically at specific points) can respond to. These join existing session-related events like session.compact and session.attach. The new events are wired through the schema, an internal raiser mechanism, and real call sites that emit them during a session.
Why
This gives plugins and hooks more points in a session's lifecycle to hook into, specifically when a session ends and when some kind of measurement occurs.
Names in the bundlesession.endsession.measure
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
The finding does not say what `session.measure` actually measures or when it fires.