Function handleRemoteAuthFailure

src/services/mcp/client.ts:340–361

* Shared handler for sse/http/claudeai-proxy auth failures during connect: * emits tengu_mcp_server_needs_auth, caches the needs-auth entry, and returns * the needs-auth connection result.

(
  name: string,
  serverRef: ScopedMcpServerConfig,
  transportType: 'sse' | 'http' | 'claudeai-proxy',
)

 * the needs-auth connection result.
 */
function handleRemoteAuthFailure(
  name: string,
  serverRef: ScopedMcpServerConfig,
  transportType: 'sse' | 'http' | 'claudeai-proxy',
): MCPServerConnection {
  logEvent('tengu_mcp_server_needs_auth', {
    transportType:
      transportType as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
    ...mcpBaseUrlAnalytics(serverRef),
  })
  const label: Record<typeof transportType, string> = {
    sse: 'SSE',
    http: 'HTTP',
    'claudeai-proxy': 'claude.ai proxy',
  }
  logMCPDebug(
    name,
    `Authentication required for ${label[transportType]} server`,
  )
  setMcpAuthCacheEntry(name)
  return { name, type: 'needs-auth', config: serverRef }
}

/**
 * Fetch wrapper for claude.ai proxy connections. Attaches the OAuth bearer