Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.273 ·

Tool-list composition restructured to append a separate tool group

Tool list building now appends one tool group separately instead of merging it in

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal0worth watching, 1 to 5
AreaElsewherewhat it touches
KindInternal Changesin v2.1.273,
Under the hood

Tool list building now appends one tool group separately instead of merging it in

What

The internal lists that assemble the full set of available tools now build the main list first, then append one additional tool group onto the end, rather than merging all tool groups together in one step as before.

Why

This is an internal restructuring of how the tool list is composed; the finding doesn't indicate any resulting change in which tools are available or how they behave.

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 doubtWhich tool category is now appended separately, and why, isn't identified in the finding.

See this entry in the whole of v2.1.273 →