Function reconnectMcpServerImpl

src/services/mcp/client.ts:2137–2210

(
  name: string,
  config: ScopedMcpServerConfig,
)

 * @returns Object containing the client connection and its resources
 */
export async function reconnectMcpServerImpl(
  name: string,
  config: ScopedMcpServerConfig,
): Promise<{
  client: MCPServerConnection
  tools: Tool[]
  commands: Command[]
  resources?: ServerResource[]
}> {
  try {
    // Invalidate the keychain cache so we read fresh credentials from disk.
    // This is necessary when another process (e.g. the VS Code extension host)
    // has modified stored tokens (cleared auth, saved new OAuth tokens) and then
    // asks the CLI subprocess to reconnect.  Without this, the subprocess would
    // use stale cached data and never notice the tokens were removed.
    clearKeychainCache()

    await clearServerCache(name, config)
    const client = await connectToServer(name, config)

    if (client.type !== 'connected') {
      return {
        client,
        tools: [],
        commands: [],
      }
    }

    if (config.type === 'claudeai-proxy') {
      markClaudeAiMcpConnected(name)
    }

    const supportsResources = !!client.capabilities?.resources

    const [tools, mcpCommands, mcpSkills, resources] = await Promise.all([
      fetchToolsForClient(client),
      fetchCommandsForClient(client),
      feature('MCP_SKILLS') && supportsResources
        ? fetchMcpSkillsForClient!(client)
        : Promise.resolve([]),
      supportsResources ? fetchResourcesForClient(client) : Promise.resolve([]),
    ])
    const commands = [...mcpCommands, ...mcpSkills]

    // Check if we need to add resource tools
    const resourceTools: Tool[] = []
    if (supportsResources) {
      // Only add resource tools if no other server has them
      const hasResourceTools = [ListMcpResourcesTool, ReadMcpResourceTool].some(
        tool => tools.some(t => toolMatchesName(t, tool.name)),
      )
      if (!hasResourceTools) {
        resourceTools.push(ListMcpResourcesTool, ReadMcpResourceTool)
      }
    }

    return {
      client,