You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
HooksArea: what it touches
ImprovementsKind: in v2.1.287,
ImprovementsSection of the release
What
A hook is a command you or a plugin configure to run automatically at a certain moment. SessionStart hooks run when a session begins or resumes, and they can supply an initial user message to start the conversation with.
Claude Code can now run hooks in a mode that covers only newly loaded plugins. In that mode, if a plugin was loaded after the session had already started, its SessionStart hook's initial user message is ignored and Claude Code shows a warning instead. Before, that message was always accepted. Claude Code also now keeps track of which plugins each matched hook belongs to.
Why
This affects plugins you install while a session is already running: their start-of-session hooks no longer slip a message into a conversation that is already under way.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear what makes Claude Code run hooks in the newly-loaded-plugins mode.
