What probably matters to youSection of the release
What
An agent definition can list which tools the agent may use. An entry that names an MCP server (an add-on that gives extra tools), or ends in __*, now expands to all of that server's tools. If no connected server of that name has any tool, Claude Code warns that the entry takes no tool. Before, such entries matched on the server name only and gave no warning.
Why
A mistyped server name in an agent's tools list now shows up as a warning instead of silently giving the agent nothing.
