build: replace eslint with biome for linting

Author: zhensherlock

.changeset/shiny-moments-fold.md

@@ -0,0 +1,6 @@
+---
+'create-mcp-kit': patch
+'@mcp-tool-kit/shared': patch
+---
+
+build: replace eslint with biome for linting

biome.json

@@ -0,0 +1,101 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.3.7/schema.json",
+  "vcs": { "enabled": true, "clientKind": "git", "useIgnoreFile": true },
+  "files": { "ignoreUnknown": false },
+  "formatter": {
+    "enabled": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf",
+    "lineWidth": 120,
+    "attributePosition": "auto",
+    "bracketSameLine": false,
+    "bracketSpacing": true,
+    "expand": "auto",
+    "useEditorconfig": true
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": false,
+      "complexity": { "noUselessTypeConstraint": "error" },
+      "correctness": { "noUnusedVariables": "error" },
+      "style": {
+        "noCommonJs": "error",
+        "noNamespace": "error",
+        "useArrayLiterals": "error",
+        "useAsConstAssertion": "error"
+      },
+      "suspicious": {
+        "noConsole": "off",
+        "noExplicitAny": "error",
+        "noExtraNonNullAssertion": "error",
+        "noMisleadingInstantiator": "error",
+        "noNonNullAssertedOptionalChain": "error",
+        "noUnsafeDeclarationMerging": "error",
+        "useNamespaceKeyword": "error"
+      }
+    },
+    "includes": ["**", "!**/build", "!**/node_modules", "!**/.*", "!**/*.d.ts", "!.husky/"]
+  },
+  "javascript": {
+    "formatter": {
+      "jsxQuoteStyle": "double",
+      "quoteProperties": "asNeeded",
+      "trailingCommas": "all",
+      "semicolons": "asNeeded",
+      "arrowParentheses": "asNeeded",
+      "bracketSameLine": false,
+      "quoteStyle": "single",
+      "attributePosition": "auto",
+      "bracketSpacing": true
+    },
+    "globals": ["exports"]
+  },
+  "html": {
+    "formatter": {
+      "indentScriptAndStyle": false,
+      "selfCloseVoidElements": "always"
+    }
+  },
+  "overrides": [
+    {
+      "includes": ["**/*.ts", "**/*.tsx", "**/*.mts", "**/*.cts"],
+      "linter": {
+        "rules": {
+          "complexity": { "noArguments": "error" },
+          "correctness": {
+            "noConstAssign": "off",
+            "noGlobalObjectCalls": "off",
+            "noInvalidBuiltinInstantiation": "off",
+            "noInvalidConstructorSuper": "off",
+            "noSetterReturn": "off",
+            "noUndeclaredVariables": "off",
+            "noUnreachable": "off",
+            "noUnreachableSuper": "off"
+          },
+          "style": { "useConst": "error" },
+          "suspicious": {
+            "noClassAssign": "off",
+            "noDuplicateClassMembers": "off",
+            "noDuplicateObjectKeys": "off",
+            "noDuplicateParameters": "off",
+            "noFunctionAssign": "off",
+            "noImportAssign": "off",
+            "noRedeclare": "off",
+            "noUnsafeNegation": "off",
+            "noVar": "error",
+            "noWith": "off",
+            "useGetterReturn": "off"
+          }
+        }
+      }
+    },
+    { "includes": ["packages/**/*.{js,ts}"] }
+  ],
+  "assist": {
+    "enabled": true,
+    "actions": { "source": { "organizeImports": "on" } }
+  }
+}

lint-staged.config.js

@@ -1,3 +1,3 @@
 export default {
-  'packages/**/*.{ts,js}': ['npx eslint'],
+  'packages/**/*.{ts,js}': ['biome check --write'],
 }

package.json

@@ -41,6 +41,7 @@
     "typescript"
   ],
   "devDependencies": {
+    "@biomejs/biome": "2.3.7",
     "@changesets/changelog-github": "^0.5.1",
     "@changesets/cli": "^2.29.7",
     "@commitlint/cli": "^20.1.0",