You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
AgentsArea: what it touches
Bug FixesKind: in v2.1.307,
Bug FixesSection of the release
Unclear What this changes for a user of SDK-provided MCP servers is not clear.
What
MCP servers give Claude extra tools, and a program using the SDK (the toolkit for driving Claude Code) can supply them. When Claude Code's usual lookup for those servers returns nothing, it now falls back on a step that refreshes their tool list.
Why
In practice, tool lists from SDK-provided MCP servers can be refreshed.
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 doubtWhat this changes for a user of SDK-provided MCP servers is not clear.
