Function updateSdkMcp

src/cli/print.ts:1417–1487

()

  }

  async function updateSdkMcp() {
    // Check if SDK MCP servers need to be updated (new servers added or removed)
    const currentServerNames = new Set(Object.keys(sdkMcpConfigs))
    const connectedServerNames = new Set(sdkClients.map(c => c.name))

    // Check if there are any differences (additions or removals)
    const hasNewServers = Array.from(currentServerNames).some(
      name => !connectedServerNames.has(name),
    )
    const hasRemovedServers = Array.from(connectedServerNames).some(
      name => !currentServerNames.has(name),
    )
    // Check if any SDK clients are pending and need to be upgraded
    const hasPendingSdkClients = sdkClients.some(c => c.type === 'pending')
    // Check if any SDK clients failed their handshake and need to be retried.
    // Without this, a client that lands in 'failed' (e.g. handshake timeout on
    // a WS reconnect race) stays failed forever — its name satisfies the
    // connectedServerNames diff but it contributes zero tools.
    const hasFailedSdkClients = sdkClients.some(c => c.type === 'failed')

    const haveServersChanged =
      hasNewServers ||
      hasRemovedServers ||
      hasPendingSdkClients ||
      hasFailedSdkClients

    if (haveServersChanged) {
      // Clean up removed servers
      for (const client of sdkClients) {
        if (!currentServerNames.has(client.name)) {
          if (client.type === 'connected') {
            await client.cleanup()
          }
        }
      }

      // Re-initialize all SDK MCP servers with current config
      const sdkSetup = await setupSdkMcpClients(
        sdkMcpConfigs,
        (serverName, message) =>
          structuredIO.sendMcpMessage(serverName, message),
      )
      sdkClients = sdkSetup.clients
      sdkTools = sdkSetup.tools

      // Store SDK MCP tools in appState so subagents can access them via
      // assembleToolPool. Only tools are stored here — SDK clients are already
      // merged separately in the query loop (allMcpClients) and mcp_status handler.
      // Use both old (connectedServerNames) and new (currentServerNames) to remove
      // stale SDK tools when servers are added or removed.
      const allSdkNames = uniq([...connectedServerNames, ...currentServerNames])
      setAppState(prev => ({
        ...prev,
        mcp: {
          ...prev.mcp,
          tools: [
            ...prev.mcp.tools.filter(
              t =>