diff --git a/benchmark/index.js b/benchmark/index.js
index 956b9c3afa..0c62036d98 100755
--- a/benchmark/index.js
+++ b/benchmark/index.js
@@ -1,6 +1,6 @@
 import fs from 'node:fs/promises';
 import path from 'node:path';
-import { fileURLToPath, pathToFileURL } from 'node:url';
+import { pathToFileURL } from 'node:url';
 import mri from 'mri';
 import { makeProject } from './bench/_util.js';
 
diff --git a/benchmark/packages/adapter/src/index.ts b/benchmark/packages/adapter/src/index.ts
index f2345deb08..0fc6d67f99 100644
--- a/benchmark/packages/adapter/src/index.ts
+++ b/benchmark/packages/adapter/src/index.ts
@@ -1,4 +1,4 @@
-import type { AstroAdapter, AstroIntegration } from 'astro';
+import type { AstroIntegration } from 'astro';
 
 export default function createIntegration(): AstroIntegration {
 	return {
diff --git a/biome.jsonc b/biome.jsonc
index bab1f1a05b..a1000760a7 100644
--- a/biome.jsonc
+++ b/biome.jsonc
@@ -34,6 +34,7 @@
 			"correctness": {
 				"noUnusedVariables": "info",
 				"noUnusedFunctionParameters": "info",
+				"noUnusedImports": "warn",
 			},
 		},
 	},
@@ -87,11 +88,12 @@
 			},
 		},
 		{
-			"include": ["*.astro", "client.d.ts"],
+			"include": ["*.astro", "client.d.ts", "jsx-runtime.d.ts"],
 			"linter": {
 				"rules": {
 					"correctness": {
 						"noUnusedVariables": "off",
+						"noUnusedImports": "off",
 					},
 				},
 			},
diff --git a/packages/astro/src/assets/utils/imageAttributes.ts b/packages/astro/src/assets/utils/imageAttributes.ts
index 1b17e11b63..aa67b528f2 100644
--- a/packages/astro/src/assets/utils/imageAttributes.ts
+++ b/packages/astro/src/assets/utils/imageAttributes.ts
@@ -1,5 +1,4 @@
 import { toStyleString } from '../../runtime/server/render/util.js';
-import type { AstroConfig } from '../../types/public/config.js';
 import type { GetImageResult, ImageLayout, LocalImageProps, RemoteImageProps } from '../types.js';
 
 export function addCSSVarsToStyle(
diff --git a/packages/astro/src/core/app/index.ts b/packages/astro/src/core/app/index.ts
index 36543b5cac..d23383133e 100644
--- a/packages/astro/src/core/app/index.ts
+++ b/packages/astro/src/core/app/index.ts
@@ -5,7 +5,6 @@ import {
 	REROUTABLE_STATUS_CODES,
 	REROUTE_DIRECTIVE_HEADER,
 	clientAddressSymbol,
-	clientLocalsSymbol,
 	responseSentSymbol,
 } from '../constants.js';
 import { getSetCookiesFromResponse } from '../cookies/index.js';
diff --git a/packages/astro/src/core/build/plugins/plugin-manifest.ts b/packages/astro/src/core/build/plugins/plugin-manifest.ts
index caebb470d5..f0589868f7 100644
--- a/packages/astro/src/core/build/plugins/plugin-manifest.ts
+++ b/packages/astro/src/core/build/plugins/plugin-manifest.ts
@@ -5,7 +5,6 @@ import type { Plugin as VitePlugin } from 'vite';
 import { getAssetsPrefix } from '../../../assets/utils/getAssetsPrefix.js';
 import { normalizeTheLocale } from '../../../i18n/index.js';
 import { toFallbackType, toRoutingStrategy } from '../../../i18n/utils.js';
-import { unwrapSupportKind } from '../../../integrations/features-validation.js';
 import { runHookBuildSsr } from '../../../integrations/hooks.js';
 import { BEFORE_HYDRATION_SCRIPT_ID, PAGE_SCRIPT_ID } from '../../../vite-plugin-scripts/index.js';
 import type {
diff --git a/packages/astro/src/core/build/plugins/plugin-ssr.ts b/packages/astro/src/core/build/plugins/plugin-ssr.ts
index 473aa95012..eea2be3e8e 100644
--- a/packages/astro/src/core/build/plugins/plugin-ssr.ts
+++ b/packages/astro/src/core/build/plugins/plugin-ssr.ts
@@ -1,5 +1,4 @@
 import type { Plugin as VitePlugin } from 'vite';
-import type { AstroSettings } from '../../../types/astro.js';
 import type { AstroAdapter } from '../../../types/public/integrations.js';
 import { routeIsRedirect } from '../../redirects/index.js';
 import { VIRTUAL_ISLAND_MAP_ID } from '../../server-islands/vite-plugin-server-islands.js';
diff --git a/packages/astro/src/vite-plugin-astro-server/route.ts b/packages/astro/src/vite-plugin-astro-server/route.ts
index b4b6598054..eb353e501f 100644
--- a/packages/astro/src/vite-plugin-astro-server/route.ts
+++ b/packages/astro/src/vite-plugin-astro-server/route.ts
@@ -11,7 +11,7 @@ import { req } from '../core/messages.js';
 import { loadMiddleware } from '../core/middleware/loadMiddleware.js';
 import { routeIsRedirect } from '../core/redirects/index.js';
 import { RenderContext } from '../core/render-context.js';
-import { type SSROptions, getProps } from '../core/render/index.js';
+import { getProps } from '../core/render/index.js';
 import { createRequest } from '../core/request.js';
 import { redirectTemplate } from '../core/routing/3xx.js';
 import { matchAllRoutes } from '../core/routing/index.js';
diff --git a/packages/astro/templates/env.mjs b/packages/astro/templates/env.mjs
index 9f36f1175b..6526033514 100644
--- a/packages/astro/templates/env.mjs
+++ b/packages/astro/templates/env.mjs
@@ -1,6 +1,7 @@
 // @ts-check
 import { schema } from 'virtual:astro:env/internal';
 import {
+	// biome-ignore lint/correctness/noUnusedImports: `_getEnv` is used by the generated code
 	getEnv as _getEnv,
 	createInvalidVariablesError,
 	getEnvFieldType,
diff --git a/packages/astro/test/units/routing/route-matching.test.js b/packages/astro/test/units/routing/route-matching.test.js
index b524a7ea10..72900d3156 100644
--- a/packages/astro/test/units/routing/route-matching.test.js
+++ b/packages/astro/test/units/routing/route-matching.test.js
@@ -1,6 +1,5 @@
 import * as assert from 'node:assert/strict';
 import { after, before, describe, it } from 'node:test';
-import { fileURLToPath } from 'node:url';
 import * as cheerio from 'cheerio';
 import { createContainer } from '../../../dist/core/dev/container.js';
 import { createViteLoader } from '../../../dist/core/module-loader/vite.js';
diff --git a/packages/db/src/core/integration/index.ts b/packages/db/src/core/integration/index.ts
index 51d3f80116..36dc6b0f8b 100644
--- a/packages/db/src/core/integration/index.ts
+++ b/packages/db/src/core/integration/index.ts
@@ -26,7 +26,6 @@ import {
 	type LateSeedFiles,
 	type LateTables,
 	type SeedHandler,
-	resolved,
 	vitePluginDb,
 } from './vite-plugin-db.js';
 
diff --git a/packages/integrations/markdoc/src/html/transform/html-token-transform.ts b/packages/integrations/markdoc/src/html/transform/html-token-transform.ts
index 2c6a5d1e2f..b80595f97b 100644
--- a/packages/integrations/markdoc/src/html/transform/html-token-transform.ts
+++ b/packages/integrations/markdoc/src/html/transform/html-token-transform.ts
@@ -1,6 +1,7 @@
 import type { Tokenizer } from '@markdoc/markdoc';
 import { Parser } from 'htmlparser2';
 // @ts-expect-error This type isn't exported
+// biome-ignore lint/correctness/noUnusedImports: not correctly detected because type isn't exported
 import type * as Token from 'markdown-it/lib/token';
 
 export function htmlTokenTransform(tokenizer: Tokenizer, tokens: Token[]): Token[] {