Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
CompactionArea: what it touches
Internal ChangesKind: in v2.1.247,
Internal ChangesSection of the release
What
Compaction and forking now assemble their system prompt through the same builder the main query paths use, which reuses an already-rendered prompt when there is one. It is passed no agent definition here, so nothing about the prompt changes yet.
Evidence
mainThreadAgentDefinition: void 0,
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
