{"version":"2.1.288","anchor":"mcp-reconnect-close-no-longer-retried-when-closereason-is-se","canonical_anchor":"mcp-reconnect-close-no-longer-retried-when-closereason-is-se","heading":"MCP servers are reconnected after sign-in less often when they close","tier":"notice","area":"MCP","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.288\/e\/mcp-reconnect-close-no-longer-retried-when-closereason-is-se","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.288","markdown":"### MCP servers are reconnected after sign-in less often when they close\n\nClaude Code no longer rejoins an MCP server after re-authentication when its close reason matches a certain check, and stops retrying one new error kind\n\n**Unclear.** It is not clear which close reasons stop the rejoin or which error is no longer retried.\n\n**What**\n\nMCP servers are outside programs that give Claude Code extra tools. When a connection to one closes while you are signing in again, Claude Code used to try to rejoin it. It now skips the rejoin when the reason given for the close matches a certain check. A new kind of error is also treated as one that should not be retried.\n\n**Why**\n\nIn practice, Claude Code makes fewer automatic reconnection attempts to MCP servers in some cases.\n\n- Area: MCP\n- Tier: You'll notice\n- Useful: 1\/5\n- Signal: 1\/5\n- Scope: individual\n- Heads-up: no"}