Follow Discord
Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.259 ·

Dynamic tool loading can seed deferred-tool references from a previous process

A new process can reconstruct which deferred tools an earlier process already surfaced, so they don't need re-announcing.

Under the hood Internal Changes
JSON All of v2.1.259
Under the hoodTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Tool LoadingArea: what it touches
Internal ChangesKind: in v2.1.259,
Internal ChangesSection of the release

When starting a new process, the harness can now reconstruct which deferred/lazy-loaded tools a previous process had already surfaced, using deferred_tools_delta attachments, and seeds references to them in the new process so those tools don't need to be re-announced. This is logged as Dynamic tool loading: seeded N tool reference(s).

See this entry in the whole of v2.1.259 →

Feedback