diff --git a/.changeset/fix-eslint-unnecessary-condition.md b/.changeset/fix-eslint-unnecessary-condition.md
new file mode 100644
index 00000000..f37e24dc
--- /dev/null
+++ b/.changeset/fix-eslint-unnecessary-condition.md
@@ -0,0 +1,5 @@
+---
+'@tanstack/devtools-vite': patch
+---
+
+Fix unnecessary condition ESLint error in console pipe log method lookup.
diff --git a/packages/devtools-vite/src/plugin.ts b/packages/devtools-vite/src/plugin.ts
index 8e1caf5f..47740560 100644
--- a/packages/devtools-vite/src/plugin.ts
+++ b/packages/devtools-vite/src/plugin.ts
@@ -225,7 +225,7 @@ export const devtools = (args?: TanStackDevtoolsViteConfig): Array<Plugin> => {
 
         const originalConsole = Object.fromEntries(
           consolePipingLevels.map((l) => [l, console[l].bind(console)]),
-        ) as Record<ConsoleLevel, typeof console.log>
+        ) as Partial<Record<ConsoleLevel, typeof console.log>>
 
         // SSE clients for broadcasting server logs to browser
         const sseClients: Array<{
@@ -253,8 +253,10 @@ export const devtools = (args?: TanStackDevtoolsViteConfig): Array<Plugin> => {
                     for (const entry of entries) {
                       const prefix = chalk.cyan('[Client]')
                       const logMethod =
-                        originalConsole[entry.level as ConsoleLevel] ||
-                        originalConsole.log
+                        originalConsole[entry.level as ConsoleLevel] ??
+                        // log exists in consolePipingLevels
+                        originalConsole.log!
+
                       const cleanedArgs = stripEnhancedLogPrefix(
                         entry.args,
                         (loc) => chalk.gray(loc),
diff --git a/packages/devtools-vite/tests/index.test.ts b/packages/devtools-vite/tests/index.test.ts
index ba13a33e..b014875f 100644
--- a/packages/devtools-vite/tests/index.test.ts
+++ b/packages/devtools-vite/tests/index.test.ts
@@ -1,6 +1,23 @@
-import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 import { devtools } from '../src/plugin'
 import type { Plugin } from 'vite'
+import type * as Utils from '../src/utils'
+
+let capturedOnConsolePipe: ((entries: Array<any>) => void) | undefined
+
+vi.mock('../src/utils', async (importOriginal) => {
+  const actual = await importOriginal<typeof Utils>()
+  return {
+    ...actual,
+    handleDevToolsViteRequest: vi.fn(
+      (_req: any, _res: any, _next: any, handlers: any) => {
+        if (typeof handlers === 'object' && handlers?.onConsolePipe) {
+          capturedOnConsolePipe = handlers.onConsolePipe
+        }
+      },
+    ),
+  }
+})
 
 // Helper to find a plugin by name from the array returned by devtools()
 function findPlugin(plugins: Array<Plugin>, name: string): Plugin | undefined {
@@ -313,6 +330,75 @@ describe('devtools plugin', () => {
     })
   })
 
+  describe('configureServer - onConsolePipe uses pre-wrap console methods', () => {
+    let originalLog: typeof console.log
+    let beforeWrapSpy: ReturnType<typeof vi.fn>
+    let afterWrapSpy: ReturnType<typeof vi.fn>
+
+    beforeEach(async () => {
+      capturedOnConsolePipe = undefined
+      originalLog = console.log
+      beforeWrapSpy = vi.fn()
+      afterWrapSpy = vi.fn()
+
+      console.log = beforeWrapSpy
+
+      const plugins = devtools({ eventBusConfig: { enabled: false } })
+      const customServerPlugin = findPlugin(
+        plugins,
+        '@tanstack/devtools:custom-server',
+      )!
+
+      const server = {
+        ...createMockServer(),
+        middlewares: {
+          use: vi.fn((handler: any) => {
+            handler({ url: '/not-a-tsd-route', socket: {} }, {}, vi.fn())
+          }),
+        },
+      }
+
+      const configureServer = customServerPlugin.configureServer as (
+        server: any,
+      ) => Promise<void>
+      await configureServer(server)
+
+      console.log = afterWrapSpy
+    })
+
+    afterEach(() => {
+      console.log = originalLog
+      capturedOnConsolePipe = undefined
+    })
+
+    it('uses the captured original method directly for a known level', () => {
+      expect(capturedOnConsolePipe).toBeDefined()
+      beforeWrapSpy.mockClear()
+      afterWrapSpy.mockClear()
+
+      capturedOnConsolePipe!([
+        { level: 'log', args: ['test message'], timestamp: Date.now() },
+      ])
+
+      expect(beforeWrapSpy).toHaveBeenCalledTimes(1)
+      expect(afterWrapSpy).not.toHaveBeenCalled()
+    })
+    it('falls back to captured originalConsole.log for an unknown level, not the live console.log', () => {
+      expect(capturedOnConsolePipe).toBeDefined()
+      beforeWrapSpy.mockClear()
+      afterWrapSpy.mockClear()
+
+      // 'trace' is not in consolePipingLevels so originalConsole['trace'] is
+      // undefined and the fallback branch is taken.
+      capturedOnConsolePipe!([
+        { level: 'trace', args: ['test message'], timestamp: Date.now() },
+      ])
+
+      expect(beforeWrapSpy).toHaveBeenCalledTimes(1)
+      expect(afterWrapSpy).not.toHaveBeenCalled()
+    })
+  })
+
   describe('plugin array', () => {
     it('should return an array of plugins', () => {
       const plugins = devtools()