{"version":"2.1.259","anchor":"remote-mcp-tool-calls-gain-sendaddressed-callbacks","canonical_anchor":"remote-mcp-tool-calls-gain-sendaddressed-callbacks","heading":"Remote MCP tool calls gain send\/addressed callbacks","tier":"internal","area":"Remote Tools","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.259\/e\/remote-mcp-tool-calls-gain-sendaddressed-callbacks","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.259","markdown":"### Remote MCP tool calls gain send\/addressed callbacks\n\nRemote MCP tool dispatch gained callbacks for when a call is first sent and when a recipient acknowledges it.\n\nThe remote MCP tool-call dispatcher now accepts optional `onFirstSend` and `onAddressed` callbacks, fired when a tool call is sent over the transport and when a recipient acknowledges it.\n\n- Area: Remote Tools\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 3\/5"}