diff --git a/extensions/ql-vscode/.eslintignore b/extensions/ql-vscode/.eslintignore
index 73702ce5402..a04d542eaa5 100644
--- a/extensions/ql-vscode/.eslintignore
+++ b/extensions/ql-vscode/.eslintignore
@@ -3,5 +3,14 @@ node_modules/
 out/
 build/
 
+# Ignore js files
+.eslintrc.js
+jest.config.js
+test/vscode-tests/activated-extension/jest-runner-vscode.config.js
+test/vscode-tests/cli-integration/jest-runner-vscode.config.js
+test/vscode-tests/jest-runner-vscode.config.base.js
+test/vscode-tests/minimal-workspace/jest-runner-vscode.config.js
+test/vscode-tests/no-workspace/jest-runner-vscode.config.js
+
 # Include the Storybook config
 !.storybook
diff --git a/extensions/ql-vscode/.eslintrc.js b/extensions/ql-vscode/.eslintrc.js
index a6a4d56b694..eeac6beceb9 100644
--- a/extensions/ql-vscode/.eslintrc.js
+++ b/extensions/ql-vscode/.eslintrc.js
@@ -45,7 +45,7 @@ const baseConfig = {
     "@typescript-eslint/no-invalid-this": "off",
     "@typescript-eslint/no-shadow": "off",
     "prefer-const": ["warn", { destructuring: "all" }],
-    "@typescript-eslint/no-throw-literal": "error",
+    "@typescript-eslint/only-throw-error": "error",
     "@typescript-eslint/consistent-type-imports": "error",
     "import/consistent-type-specifier-style": ["error", "prefer-top-level"],
     curly: ["error", "all"],
@@ -133,18 +133,7 @@ module.exports = {
         ...baseConfig.rules,
         // We want to allow mocking of functions in modules, so we need to allow namespace imports.
         "import/no-namespace": "off",
-        "@typescript-eslint/ban-types": [
-          "error",
-          {
-            // For a full list of the default banned types, see:
-            // https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/ban-types.md
-            extendDefaults: true,
-            types: {
-              // Don't complain about the `Function` type in test files. (Default is `true`.)
-              Function: false,
-            },
-          },
-        ],
+        "@typescript-eslint/no-unsafe-function-type": "off",
       },
     },
     {
diff --git a/extensions/ql-vscode/gulpfile.ts/appInsights.ts b/extensions/ql-vscode/gulpfile.ts/appInsights.ts
index 8e96f286675..e5dba3fd17e 100644
--- a/extensions/ql-vscode/gulpfile.ts/appInsights.ts
+++ b/extensions/ql-vscode/gulpfile.ts/appInsights.ts
@@ -1,5 +1,5 @@
 import { src, dest } from "gulp";
-// eslint-disable-next-line @typescript-eslint/no-var-requires,import/no-commonjs
+// eslint-disable-next-line @typescript-eslint/no-require-imports,import/no-commonjs
 const replace = require("gulp-replace");
 
 /** Inject the application insights key into the telemetry file */
diff --git a/extensions/ql-vscode/package-lock.json b/extensions/ql-vscode/package-lock.json
index c3c1e168584..d6f372a288d 100644
--- a/extensions/ql-vscode/package-lock.json
+++ b/extensions/ql-vscode/package-lock.json
@@ -94,8 +94,8 @@
         "@types/tmp": "^0.2.6",
         "@types/vscode": "^1.82.0",
         "@types/yauzl": "^2.10.3",
-        "@typescript-eslint/eslint-plugin": "^7.5.0",
-        "@typescript-eslint/parser": "^7.5.0",
+        "@typescript-eslint/eslint-plugin": "^8.0.1",
+        "@typescript-eslint/parser": "^8.0.1",
         "@vscode/test-electron": "^2.3.9",
         "@vscode/vsce": "^2.24.0",
         "ansi-colors": "^4.1.1",
@@ -6836,33 +6836,31 @@
       }
     },
     "node_modules/@typescript-eslint/eslint-plugin": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-7.5.0.tgz",
-      "integrity": "sha512-HpqNTH8Du34nLxbKgVMGljZMG0rJd2O9ecvr2QLYp+7512ty1j42KnsFwspPXg1Vh8an9YImf6CokUBltisZFQ==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.0.1.tgz",
+      "integrity": "sha512-5g3Y7GDFsJAnY4Yhvk8sZtFfV6YNF2caLzjrRPUBzewjPCaj0yokePB4LJSobyCzGMzjZZYFbwuzbfDHlimXbQ==",
       "dev": true,
       "dependencies": {
-        "@eslint-community/regexpp": "^4.5.1",
-        "@typescript-eslint/scope-manager": "7.5.0",
-        "@typescript-eslint/type-utils": "7.5.0",
-        "@typescript-eslint/utils": "7.5.0",
-        "@typescript-eslint/visitor-keys": "7.5.0",
-        "debug": "^4.3.4",
+        "@eslint-community/regexpp": "^4.10.0",
+        "@typescript-eslint/scope-manager": "8.0.1",
+        "@typescript-eslint/type-utils": "8.0.1",
+        "@typescript-eslint/utils": "8.0.1",
+        "@typescript-eslint/visitor-keys": "8.0.1",
         "graphemer": "^1.4.0",
-        "ignore": "^5.2.4",
+        "ignore": "^5.3.1",
         "natural-compare": "^1.4.0",
-        "semver": "^7.5.4",
-        "ts-api-utils": "^1.0.1"
+        "ts-api-utils": "^1.3.0"
       },
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/typescript-eslint"
       },
       "peerDependencies": {
-        "@typescript-eslint/parser": "^7.0.0",
-        "eslint": "^8.56.0"
+        "@typescript-eslint/parser": "^8.0.0 || ^8.0.0-alpha.0",
+        "eslint": "^8.57.0 || ^9.0.0"
       },
       "peerDependenciesMeta": {
         "typescript": {
@@ -6871,16 +6869,16 @@
       }
     },
     "node_modules/@typescript-eslint/eslint-plugin/node_modules/@typescript-eslint/scope-manager": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-7.5.0.tgz",
-      "integrity": "sha512-Z1r7uJY0MDeUlql9XJ6kRVgk/sP11sr3HKXn268HZyqL7i4cEfrdFuSSY/0tUqT37l5zT0tJOsuDP16kio85iA==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-8.0.1.tgz",
+      "integrity": "sha512-NpixInP5dm7uukMiRyiHjRKkom5RIFA4dfiHvalanD2cF0CLUuQqxfg8PtEUo9yqJI2bBhF+pcSafqnG3UBnRQ==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "7.5.0",
-        "@typescript-eslint/visitor-keys": "7.5.0"
+        "@typescript-eslint/types": "8.0.1",
+        "@typescript-eslint/visitor-keys": "8.0.1"
       },
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
       "funding": {
         "type": "opencollective",
@@ -6888,12 +6886,12 @@
       }
     },
     "node_modules/@typescript-eslint/eslint-plugin/node_modules/@typescript-eslint/types": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-7.5.0.tgz",
-      "integrity": "sha512-tv5B4IHeAdhR7uS4+bf8Ov3k793VEVHd45viRRkehIUZxm0WF82VPiLgHzA/Xl4TGPg1ZD49vfxBKFPecD5/mg==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.0.1.tgz",
+      "integrity": "sha512-PpqTVT3yCA/bIgJ12czBuE3iBlM3g4inRSC5J0QOdQFAn07TYrYEQBBKgXH1lQpglup+Zy6c1fxuwTk4MTNKIw==",
       "dev": true,
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
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         "type": "opencollective",
@@ -6901,22 +6899,22 @@
       }
     },
     "node_modules/@typescript-eslint/eslint-plugin/node_modules/@typescript-eslint/typescript-estree": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-7.5.0.tgz",
-      "integrity": "sha512-YklQQfe0Rv2PZEueLTUffiQGKQneiIEKKnfIqPIOxgM9lKSZFCjT5Ad4VqRKj/U4+kQE3fa8YQpskViL7WjdPQ==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.0.1.tgz",
+      "integrity": "sha512-8V9hriRvZQXPWU3bbiUV4Epo7EvgM6RTs+sUmxp5G//dBGy402S7Fx0W0QkB2fb4obCF8SInoUzvTYtc3bkb5w==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "7.5.0",
-        "@typescript-eslint/visitor-keys": "7.5.0",
+        "@typescript-eslint/types": "8.0.1",
+        "@typescript-eslint/visitor-keys": "8.0.1",
         "debug": "^4.3.4",
         "globby": "^11.1.0",
         "is-glob": "^4.0.3",
-        "minimatch": "9.0.3",
-        "semver": "^7.5.4",
-        "ts-api-utils": "^1.0.1"
+        "minimatch": "^9.0.4",
+        "semver": "^7.6.0",
+        "ts-api-utils": "^1.3.0"
       },
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
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         "type": "opencollective",
@@ -6929,41 +6927,38 @@
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     },
     "node_modules/@typescript-eslint/eslint-plugin/node_modules/@typescript-eslint/utils": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-7.5.0.tgz",
-      "integrity": "sha512-3vZl9u0R+/FLQcpy2EHyRGNqAS/ofJ3Ji8aebilfJe+fobK8+LbIFmrHciLVDxjDoONmufDcnVSF38KwMEOjzw==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-8.0.1.tgz",
+      "integrity": "sha512-CBFR0G0sCt0+fzfnKaciu9IBsKvEKYwN9UZ+eeogK1fYHg4Qxk1yf/wLQkLXlq8wbU2dFlgAesxt8Gi76E8RTA==",
       "dev": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.4.0",
-        "@types/json-schema": "^7.0.12",
-        "@types/semver": "^7.5.0",
-        "@typescript-eslint/scope-manager": "7.5.0",
-        "@typescript-eslint/types": "7.5.0",
-        "@typescript-eslint/typescript-estree": "7.5.0",
-        "semver": "^7.5.4"
+        "@typescript-eslint/scope-manager": "8.0.1",
+        "@typescript-eslint/types": "8.0.1",
+        "@typescript-eslint/typescript-estree": "8.0.1"
       },
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/typescript-eslint"
       },
       "peerDependencies": {
-        "eslint": "^8.56.0"
+        "eslint": "^8.57.0 || ^9.0.0"
       }
     },
     "node_modules/@typescript-eslint/eslint-plugin/node_modules/@typescript-eslint/visitor-keys": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-7.5.0.tgz",
-      "integrity": "sha512-mcuHM/QircmA6O7fy6nn2w/3ditQkj+SgtOc8DW3uQ10Yfj42amm2i+6F2K4YAOPNNTmE6iM1ynM6lrSwdendA==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.0.1.tgz",
+      "integrity": "sha512-W5E+o0UfUcK5EgchLZsyVWqARmsM7v54/qEq6PY3YI5arkgmCzHiuk0zKSJJbm71V0xdRna4BGomkCTXz2/LkQ==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "7.5.0",
-        "eslint-visitor-keys": "^3.4.1"
+        "@typescript-eslint/types": "8.0.1",
+        "eslint-visitor-keys": "^3.4.3"
       },
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
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         "type": "opencollective",
@@ -6980,9 +6975,9 @@
       }
     },
     "node_modules/@typescript-eslint/eslint-plugin/node_modules/minimatch": {
-      "version": "9.0.3",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.3.tgz",
-      "integrity": "sha512-RHiac9mvaRw0x3AYRgDC1CxAP7HTcNrrECeA8YYJeWnpo+2Q5CegtZjaotWTWxDG3UeGA1coE05iH1mPjT/2mg==",
+      "version": "9.0.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
+      "integrity": "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==",
       "dev": true,
       "dependencies": {
         "brace-expansion": "^2.0.1"
@@ -7136,26 +7131,26 @@
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     },
     "node_modules/@typescript-eslint/parser": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-7.5.0.tgz",
-      "integrity": "sha512-cj+XGhNujfD2/wzR1tabNsidnYRaFfEkcULdcIyVBYcXjBvBKOes+mpMBP7hMpOyk+gBcfXsrg4NBGAStQyxjQ==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-8.0.1.tgz",
+      "integrity": "sha512-5IgYJ9EO/12pOUwiBKFkpU7rS3IU21mtXzB81TNwq2xEybcmAZrE9qwDtsb5uQd9aVO9o0fdabFyAmKveXyujg==",
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-        "@typescript-eslint/scope-manager": "7.5.0",
-        "@typescript-eslint/types": "7.5.0",
-        "@typescript-eslint/typescript-estree": "7.5.0",
-        "@typescript-eslint/visitor-keys": "7.5.0",
+        "@typescript-eslint/scope-manager": "8.0.1",
+        "@typescript-eslint/types": "8.0.1",
+        "@typescript-eslint/typescript-estree": "8.0.1",
+        "@typescript-eslint/visitor-keys": "8.0.1",
         "debug": "^4.3.4"
       },
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
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         "type": "opencollective",
         "url": "https://opencollective.com/typescript-eslint"
       },
       "peerDependencies": {
-        "eslint": "^8.56.0"
+        "eslint": "^8.57.0 || ^9.0.0"
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       "peerDependenciesMeta": {
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@@ -7164,16 +7159,16 @@
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     "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/scope-manager": {
-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-7.5.0.tgz",
-      "integrity": "sha512-Z1r7uJY0MDeUlql9XJ6kRVgk/sP11sr3HKXn268HZyqL7i4cEfrdFuSSY/0tUqT37l5zT0tJOsuDP16kio85iA==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-8.0.1.tgz",
+      "integrity": "sha512-NpixInP5dm7uukMiRyiHjRKkom5RIFA4dfiHvalanD2cF0CLUuQqxfg8PtEUo9yqJI2bBhF+pcSafqnG3UBnRQ==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "7.5.0",
-        "@typescript-eslint/visitor-keys": "7.5.0"
+        "@typescript-eslint/types": "8.0.1",
+        "@typescript-eslint/visitor-keys": "8.0.1"
       },
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
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@@ -7181,12 +7176,12 @@
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-      "version": "7.5.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-7.5.0.tgz",
-      "integrity": "sha512-tv5B4IHeAdhR7uS4+bf8Ov3k793VEVHd45viRRkehIUZxm0WF82VPiLgHzA/Xl4TGPg1ZD49vfxBKFPecD5/mg==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.0.1.tgz",
+      "integrity": "sha512-PpqTVT3yCA/bIgJ12czBuE3iBlM3g4inRSC5J0QOdQFAn07TYrYEQBBKgXH1lQpglup+Zy6c1fxuwTk4MTNKIw==",
       "dev": true,
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
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@@ -7194,22 +7189,22 @@
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-      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-7.5.0.tgz",
-      "integrity": "sha512-YklQQfe0Rv2PZEueLTUffiQGKQneiIEKKnfIqPIOxgM9lKSZFCjT5Ad4VqRKj/U4+kQE3fa8YQpskViL7WjdPQ==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.0.1.tgz",
+      "integrity": "sha512-8V9hriRvZQXPWU3bbiUV4Epo7EvgM6RTs+sUmxp5G//dBGy402S7Fx0W0QkB2fb4obCF8SInoUzvTYtc3bkb5w==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "7.5.0",
-        "@typescript-eslint/visitor-keys": "7.5.0",
+        "@typescript-eslint/types": "8.0.1",
+        "@typescript-eslint/visitor-keys": "8.0.1",
         "debug": "^4.3.4",
         "globby": "^11.1.0",
         "is-glob": "^4.0.3",
-        "minimatch": "9.0.3",
-        "semver": "^7.5.4",
-        "ts-api-utils": "^1.0.1"
+        "minimatch": "^9.0.4",
+        "semver": "^7.6.0",
+        "ts-api-utils": "^1.3.0"
       },
       "engines": {
-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
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@@ -7222,16 +7217,16 @@
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+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.0.1.tgz",
+      "integrity": "sha512-W5E+o0UfUcK5EgchLZsyVWqARmsM7v54/qEq6PY3YI5arkgmCzHiuk0zKSJJbm71V0xdRna4BGomkCTXz2/LkQ==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "7.5.0",
-        "eslint-visitor-keys": "^3.4.1"
+        "@typescript-eslint/types": "8.0.1",
+        "eslint-visitor-keys": "^3.4.3"
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-        "node": "^18.18.0 || >=20.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
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@@ -7248,9 +7243,9 @@
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       "engines": {
-        "node": ">=16.13.0"
+        "node": ">=16"
       },
       "peerDependencies": {
         "typescript": ">=4.2.0"
diff --git a/extensions/ql-vscode/package.json b/extensions/ql-vscode/package.json
index 3283a9ac84a..10daf76faac 100644
--- a/extensions/ql-vscode/package.json
+++ b/extensions/ql-vscode/package.json
@@ -2051,8 +2051,8 @@
     "@types/tmp": "^0.2.6",
     "@types/vscode": "^1.82.0",
     "@types/yauzl": "^2.10.3",
-    "@typescript-eslint/eslint-plugin": "^7.5.0",
-    "@typescript-eslint/parser": "^7.5.0",
+    "@typescript-eslint/eslint-plugin": "^8.0.1",
+    "@typescript-eslint/parser": "^8.0.1",
     "@vscode/test-electron": "^2.3.9",
     "@vscode/vsce": "^2.24.0",
     "ansi-colors": "^4.1.1",
diff --git a/extensions/ql-vscode/src/codeql-cli/cli.ts b/extensions/ql-vscode/src/codeql-cli/cli.ts
index 9ccdd9362b7..431713152fa 100644
--- a/extensions/ql-vscode/src/codeql-cli/cli.ts
+++ b/extensions/ql-vscode/src/codeql-cli/cli.ts
@@ -943,7 +943,7 @@ export class CodeQLCliServer implements Disposable {
           if (line.startsWith("Enter value for --github-auth-stdin")) {
             try {
               return await this.app.credentials.getAccessToken();
-            } catch (e) {
+            } catch {
               // If the user cancels the authentication prompt, we still need to give a value to the CLI.
               // By giving a potentially invalid value, the user will just get a 401/403 when they try to access a
               // private package and the access token is invalid.
diff --git a/extensions/ql-vscode/src/codeql-cli/query-language.ts b/extensions/ql-vscode/src/codeql-cli/query-language.ts
index ba327560dde..17430ee06a5 100644
--- a/extensions/ql-vscode/src/codeql-cli/query-language.ts
+++ b/extensions/ql-vscode/src/codeql-cli/query-language.ts
@@ -36,7 +36,7 @@ export async function findLanguage(
       void extLogger.log(
         "Query language is unsupported. Select language manually.",
       );
-    } catch (e) {
+    } catch {
       void extLogger.log(
         "Could not autodetect query language. Select language manually.",
       );
diff --git a/extensions/ql-vscode/src/common/github-url-identifier-helper.ts b/extensions/ql-vscode/src/common/github-url-identifier-helper.ts
index 3f5a8e2dbe7..1ea4e327b9d 100644
--- a/extensions/ql-vscode/src/common/github-url-identifier-helper.ts
+++ b/extensions/ql-vscode/src/common/github-url-identifier-helper.ts
@@ -78,7 +78,7 @@ function getNwoOrOwnerFromGitHubUrl(
     }
     const nwo = `${paths[0]}/${paths[1]}`;
     return paths[1] ? nwo : undefined;
-  } catch (e) {
+  } catch {
     // Ignore the error here, since we catch failures at a higher level.
     return;
   }
diff --git a/extensions/ql-vscode/src/common/readonly.ts b/extensions/ql-vscode/src/common/readonly.ts
index 19a4ad963ef..e202bea52bd 100644
--- a/extensions/ql-vscode/src/common/readonly.ts
+++ b/extensions/ql-vscode/src/common/readonly.ts
@@ -1,14 +1,14 @@
 export type DeepReadonly<T> =
   T extends Array<infer R>
     ? DeepReadonlyArray<R>
-    : // eslint-disable-next-line @typescript-eslint/ban-types
+    : // eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
       T extends Function
       ? T
       : T extends object
         ? DeepReadonlyObject<T>
         : T;
 
-interface DeepReadonlyArray<T> extends ReadonlyArray<DeepReadonly<T>> {}
+type DeepReadonlyArray<T> = ReadonlyArray<DeepReadonly<T>>;
 
 type DeepReadonlyObject<T> = {
   readonly [P in keyof T]: DeepReadonly<T[P]>;
diff --git a/extensions/ql-vscode/src/databases/config/db-config-store.ts b/extensions/ql-vscode/src/databases/config/db-config-store.ts
index 9d69567da94..b08406c9764 100644
--- a/extensions/ql-vscode/src/databases/config/db-config-store.ts
+++ b/extensions/ql-vscode/src/databases/config/db-config-store.ts
@@ -298,7 +298,7 @@ export class DbConfigStore extends DisposableObject {
     let newConfig: DbConfig | undefined = undefined;
     try {
       newConfig = await readJSON(this.configPath);
-    } catch (e) {
+    } catch {
       this.configErrors = [
         {
           kind: DbConfigValidationErrorKind.InvalidJson,
@@ -332,7 +332,7 @@ export class DbConfigStore extends DisposableObject {
     let newConfig: DbConfig | undefined = undefined;
     try {
       newConfig = readJSONSync(this.configPath);
-    } catch (e) {
+    } catch {
       this.configErrors = [
         {
           kind: DbConfigValidationErrorKind.InvalidJson,
diff --git a/extensions/ql-vscode/src/databases/database-fetcher.ts b/extensions/ql-vscode/src/databases/database-fetcher.ts
index 9e3c7321304..d6ce79c5e9d 100644
--- a/extensions/ql-vscode/src/databases/database-fetcher.ts
+++ b/extensions/ql-vscode/src/databases/database-fetcher.ts
@@ -454,7 +454,7 @@ export class DatabaseFetcher {
     let uri;
     try {
       uri = Uri.parse(databaseUrl, true);
-    } catch (e) {
+    } catch {
       throw new Error(`Invalid url: ${databaseUrl}`);
     }
 
@@ -612,7 +612,7 @@ export class DatabaseFetcher {
       const obj = JSON.parse(text);
       msg =
         obj.error || obj.message || obj.reason || JSON.stringify(obj, null, 2);
-    } catch (e) {
+    } catch {
       msg = text;
     }
     throw new Error(`${errorMessage}.\n\nReason: ${msg}`);
diff --git a/extensions/ql-vscode/src/databases/local-databases/database-manager.ts b/extensions/ql-vscode/src/databases/local-databases/database-manager.ts
index 7b4eb482fbc..f820625a5d8 100644
--- a/extensions/ql-vscode/src/databases/local-databases/database-manager.ts
+++ b/extensions/ql-vscode/src/databases/local-databases/database-manager.ts
@@ -231,7 +231,7 @@ export class DatabaseManager extends DisposableObject {
     let originStat;
     try {
       originStat = await stat(originDbYml);
-    } catch (e) {
+    } catch {
       // if there is an error here, assume that the origin database
       // is no longer available. Safely ignore and do not try to re-import.
       return false;
@@ -240,7 +240,7 @@ export class DatabaseManager extends DisposableObject {
     try {
       const importedStat = await stat(importedDbYml);
       return originStat.mtimeMs > importedStat.mtimeMs;
-    } catch (e) {
+    } catch {
       // If either of the files does not exist, we assume the origin is newer.
       // This shouldn't happen unless the user manually deleted one of the files.
       return true;
diff --git a/extensions/ql-vscode/src/debugger/debug-protocol.ts b/extensions/ql-vscode/src/debugger/debug-protocol.ts
index d50bcee2221..44e4fcf3b39 100644
--- a/extensions/ql-vscode/src/debugger/debug-protocol.ts
+++ b/extensions/ql-vscode/src/debugger/debug-protocol.ts
@@ -96,7 +96,7 @@ export type Response = DebugProtocol.Response & { type: "response" };
 export type InitializeResponse = DebugProtocol.InitializeResponse &
   Response & { command: "initialize" };
 
-export interface QuickEvalResponse extends Response {}
+export type QuickEvalResponse = Response;
 
 export type AnyResponse = InitializeResponse | QuickEvalResponse;
 
diff --git a/extensions/ql-vscode/src/language-support/contextual/file-range-from-uri.ts b/extensions/ql-vscode/src/language-support/contextual/file-range-from-uri.ts
index 1aeb1fee51e..5274dc32f28 100644
--- a/extensions/ql-vscode/src/language-support/contextual/file-range-from-uri.ts
+++ b/extensions/ql-vscode/src/language-support/contextual/file-range-from-uri.ts
@@ -31,7 +31,7 @@ export function fileRangeFromURI(
         return new Location(db.resolveSourceFile(uri.uri), range);
       }
       return undefined;
-    } catch (e) {
+    } catch {
       return undefined;
     }
   }
diff --git a/extensions/ql-vscode/src/language-support/contextual/query-resolver.ts b/extensions/ql-vscode/src/language-support/contextual/query-resolver.ts
index 4302b18fa92..4624fa6f383 100644
--- a/extensions/ql-vscode/src/language-support/contextual/query-resolver.ts
+++ b/extensions/ql-vscode/src/language-support/contextual/query-resolver.ts
@@ -28,7 +28,7 @@ export async function resolveContextualQlPacksForDatabase(
 ): Promise<QlPacksForLanguage> {
   try {
     return await qlpackOfDatabase(cli, databaseItem);
-  } catch (e) {
+  } catch {
     // If we can't find the qlpacks for the database, use the defaults instead
   }
 
diff --git a/extensions/ql-vscode/src/language-support/language-support.ts b/extensions/ql-vscode/src/language-support/language-support.ts
index e73bab07f6b..bded793fdf6 100644
--- a/extensions/ql-vscode/src/language-support/language-support.ts
+++ b/extensions/ql-vscode/src/language-support/language-support.ts
@@ -12,7 +12,7 @@ import { languages, IndentAction } from "vscode";
  * See https://github.com/microsoft/vscode/blob/master/src/vs/editor/test/common/modes/supports/javascriptOnEnterRules.ts
  */
 export function install() {
-  // eslint-disable-next-line @typescript-eslint/no-var-requires
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
   const langConfig = require("../../language-configuration.json");
   // setLanguageConfiguration requires a regexp for the wordpattern, not a string
   langConfig.wordPattern = new RegExp(langConfig.wordPattern);
diff --git a/extensions/ql-vscode/src/model-editor/extensions-workspace-folder.ts b/extensions/ql-vscode/src/model-editor/extensions-workspace-folder.ts
index d5606574ab0..f3736748805 100644
--- a/extensions/ql-vscode/src/model-editor/extensions-workspace-folder.ts
+++ b/extensions/ql-vscode/src/model-editor/extensions-workspace-folder.ts
@@ -133,7 +133,7 @@ async function findGitFolder(
             const stat = await workspace.fs.stat(gitFolder);
             // Check whether it's a directory
             return (stat.type & FileType.Directory) !== 0;
-          } catch (e) {
+          } catch {
             return false;
           }
         }),
diff --git a/extensions/ql-vscode/src/query-history/query-history-manager.ts b/extensions/ql-vscode/src/query-history/query-history-manager.ts
index 22562d76a48..d4b312ad563 100644
--- a/extensions/ql-vscode/src/query-history/query-history-manager.ts
+++ b/extensions/ql-vscode/src/query-history/query-history-manager.ts
@@ -845,7 +845,7 @@ export class QueryHistoryManager extends DisposableObject {
         evalLogData,
       );
       this.evalLogViewer.updateRoots(await evalLogTreeBuilder.getRoots());
-    } catch (e) {
+    } catch {
       throw new Error(
         `Could not read evaluator log summary JSON file to generate viewer data at ${item.jsonEvalLogSummaryLocation}.`,
       );
diff --git a/extensions/ql-vscode/src/query-testing/test-runner.ts b/extensions/ql-vscode/src/query-testing/test-runner.ts
index 23da9d0c1eb..f0d8aaa39e0 100644
--- a/extensions/ql-vscode/src/query-testing/test-runner.ts
+++ b/extensions/ql-vscode/src/query-testing/test-runner.ts
@@ -61,7 +61,7 @@ export class TestRunner extends DisposableObject {
       })) {
         await eventHandler(event);
       }
-    } catch (e) {
+    } catch {
       // CodeQL testing can throw exception even in normal scenarios. For example, if the test run
       // produces no output (which is normal), the testing command would throw an exception on
       // unexpected EOF during json parsing. So nothing needs to be done here - all the relevant
diff --git a/extensions/ql-vscode/src/run-queries-shared.ts b/extensions/ql-vscode/src/run-queries-shared.ts
index 4a91cad5e58..6dbaa8e651b 100644
--- a/extensions/ql-vscode/src/run-queries-shared.ts
+++ b/extensions/ql-vscode/src/run-queries-shared.ts
@@ -607,7 +607,7 @@ export async function logEndSummary(
     const endSummaryContent = await readFile(endSummary, "utf-8");
     void logger.log(" --- Evaluator Log Summary --- ");
     void logger.log(endSummaryContent);
-  } catch (e) {
+  } catch {
     void showAndLogWarningMessage(
       extLogger,
       `Could not read structured evaluator log end of summary file at ${endSummary}.`,
diff --git a/extensions/ql-vscode/src/variant-analysis/repo-states-store/repo-states-store.ts b/extensions/ql-vscode/src/variant-analysis/repo-states-store/repo-states-store.ts
index f2acb35caf6..647e125821a 100644
--- a/extensions/ql-vscode/src/variant-analysis/repo-states-store/repo-states-store.ts
+++ b/extensions/ql-vscode/src/variant-analysis/repo-states-store/repo-states-store.ts
@@ -26,7 +26,7 @@ export async function readRepoStates(
     const repoStates = mapRepoStatesToDomainModel(repoStatesData);
 
     return repoStates;
-  } catch (e) {
+  } catch {
     // Ignore this error, we simply might not have downloaded anything yet
     return undefined;
   }
diff --git a/extensions/ql-vscode/src/variant-analysis/variant-analysis-manager.ts b/extensions/ql-vscode/src/variant-analysis/variant-analysis-manager.ts
index 9e05309f41c..d7259a8e3bb 100644
--- a/extensions/ql-vscode/src/variant-analysis/variant-analysis-manager.ts
+++ b/extensions/ql-vscode/src/variant-analysis/variant-analysis-manager.ts
@@ -562,7 +562,7 @@ export class VariantAnalysisManager
       });
       const doc = await workspace.openTextDocument(uri);
       await Window.showTextDocument(doc, { preview: false });
-    } catch (error) {
+    } catch {
       void showAndLogWarningMessage(
         this.app.logger,
         "Could not open variant analysis query text. Failed to open text document.",
@@ -586,7 +586,7 @@ export class VariantAnalysisManager
         variantAnalysis.query.filePath,
       );
       await Window.showTextDocument(textDocument, ViewColumn.One);
-    } catch (error) {
+    } catch {
       void showAndLogWarningMessage(
         this.app.logger,
         `Could not open file: ${variantAnalysis.query.filePath}`,
diff --git a/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBoxItem.tsx b/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBoxItem.tsx
index 1693d46f1d2..97a9d1a7486 100644
--- a/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBoxItem.tsx
+++ b/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBoxItem.tsx
@@ -64,23 +64,35 @@ type Props = {
 export const SuggestBoxItem = forwardRef<
   HTMLDivElement,
   Props & HTMLProps<HTMLDivElement>
->(({ children, active, icon, labelText, details, ...props }, ref) => {
-  const id = useId();
-  return (
-    <Container
-      ref={ref}
-      role="option"
-      id={id}
-      aria-selected={active}
-      $active={active}
-      {...props}
-    >
-      {icon}
-      <LabelContainer>
-        <Label>{labelText}</Label>
-        {details && <DetailsLabel>{details}</DetailsLabel>}
-      </LabelContainer>
-    </Container>
-  );
-});
+>(
+  (
+    {
+      children,
+      active,
+      icon,
+      labelText,
+      details,
+      ...props
+    }: Props & HTMLProps<HTMLDivElement>,
+    ref,
+  ) => {
+    const id = useId();
+    return (
+      <Container
+        ref={ref}
+        role="option"
+        id={id}
+        aria-selected={active}
+        $active={active}
+        {...props}
+      >
+        {icon}
+        <LabelContainer>
+          <Label>{labelText}</Label>
+          {details && <DetailsLabel>{details}</DetailsLabel>}
+        </LabelContainer>
+      </Container>
+    );
+  },
+);
 SuggestBoxItem.displayName = "SuggestBoxItem";
diff --git a/extensions/ql-vscode/src/view/model-editor/MethodRow.tsx b/extensions/ql-vscode/src/view/model-editor/MethodRow.tsx
index b0b0c428d08..c098eb353e1 100644
--- a/extensions/ql-vscode/src/view/model-editor/MethodRow.tsx
+++ b/extensions/ql-vscode/src/view/model-editor/MethodRow.tsx
@@ -116,7 +116,7 @@ export const MethodRow = (props: MethodRowProps) => {
 };
 
 const ModelableMethodRow = forwardRef<HTMLElement | undefined, MethodRowProps>(
-  (props, ref) => {
+  (props: MethodRowProps, ref) => {
     const {
       method,
       modeledMethods: modeledMethodsProp,
@@ -412,7 +412,7 @@ ModelableMethodRow.displayName = "ModelableMethodRow";
 const UnmodelableMethodRow = forwardRef<
   HTMLElement | undefined,
   MethodRowProps
->((props, ref) => {
+>((props: MethodRowProps, ref) => {
   const { method, viewState, revealedMethodSignature } = props;
 
   const jumpToMethod = useCallback(
diff --git a/extensions/ql-vscode/src/view/results/ResultTables.tsx b/extensions/ql-vscode/src/view/results/ResultTables.tsx
index e84504462ea..3afcb170314 100644
--- a/extensions/ql-vscode/src/view/results/ResultTables.tsx
+++ b/extensions/ql-vscode/src/view/results/ResultTables.tsx
@@ -124,9 +124,11 @@ export function ResultTables(props: ResultTablesProps) {
     (evt: MessageEvent): void => {
       // sanitize origin
       const origin = evt.origin.replace(/\n|\r/g, "");
-      evt.origin === window.origin
-        ? handleMessage(evt.data as IntoResultsViewMsg)
-        : console.error(`Invalid event origin ${origin}`);
+      if (evt.origin === window.origin) {
+        handleMessage(evt.data as IntoResultsViewMsg);
+      } else {
+        console.error(`Invalid event origin ${origin}`);
+      }
     },
     [handleMessage],
   );
diff --git a/extensions/ql-vscode/src/view/results/ResultsApp.tsx b/extensions/ql-vscode/src/view/results/ResultsApp.tsx
index 394e10df0ad..63f5e060dec 100644
--- a/extensions/ql-vscode/src/view/results/ResultsApp.tsx
+++ b/extensions/ql-vscode/src/view/results/ResultsApp.tsx
@@ -193,9 +193,11 @@ export function ResultsApp() {
     (evt: MessageEvent) => {
       // sanitize origin
       const origin = evt.origin.replace(/\n|\r/g, "");
-      evt.origin === window.origin
-        ? handleMessage(evt.data as IntoResultsViewMsg)
-        : console.error(`Invalid event origin ${origin}`);
+      if (evt.origin === window.origin) {
+        handleMessage(evt.data as IntoResultsViewMsg);
+      } else {
+        console.error(`Invalid event origin ${origin}`);
+      }
     },
     [handleMessage],
   );
diff --git a/extensions/ql-vscode/test/common/logging/output-channel-logger.test.ts b/extensions/ql-vscode/test/common/logging/output-channel-logger.test.ts
index 0df03c32ea3..ad835dda77e 100644
--- a/extensions/ql-vscode/test/common/logging/output-channel-logger.test.ts
+++ b/extensions/ql-vscode/test/common/logging/output-channel-logger.test.ts
@@ -50,7 +50,7 @@ describe("OutputChannelLogger tests", function () {
     tempFolders.storagePath.removeCallback();
   });
 
-  // eslint-disable-next-line @typescript-eslint/no-var-requires
+  // eslint-disable-next-line @typescript-eslint/no-require-imports
   const mockOutputChannel = require("vscode").mockOutputChannel;
 
   it("should log to the output channel", async () => {
diff --git a/extensions/ql-vscode/test/unit-tests/packages/commands/CommandManager.test.ts b/extensions/ql-vscode/test/unit-tests/packages/commands/CommandManager.test.ts
index 31dda880376..820855d7ad4 100644
--- a/extensions/ql-vscode/test/unit-tests/packages/commands/CommandManager.test.ts
+++ b/extensions/ql-vscode/test/unit-tests/packages/commands/CommandManager.test.ts
@@ -15,15 +15,11 @@ describe("CommandManager", () => {
   });
 
   it("can register typed commands", async () => {
-    const commands = {
-      "codeQL.openVariantAnalysisLogs": async (variantAnalysisId: number) => {
-        return variantAnalysisId * 10;
-      },
-    };
-    const commandManager = new CommandManager<typeof commands>(
-      jest.fn(),
-      jest.fn(),
-    );
+    const commandManager = new CommandManager<{
+      "codeQL.openVariantAnalysisLogs": (
+        variantAnalysisId: number,
+      ) => Promise<number>;
+    }>(jest.fn(), jest.fn());
 
     // @ts-expect-error wrong command name should give a type error
     commandManager.register("abc", jest.fn());
@@ -81,15 +77,11 @@ describe("CommandManager", () => {
   });
 
   it("can execute typed commands", async () => {
-    const commands = {
-      "codeQL.openVariantAnalysisLogs": async (variantAnalysisId: number) => {
-        return variantAnalysisId * 10;
-      },
-    };
-    const commandManager = new CommandManager<typeof commands>(
-      jest.fn(),
-      jest.fn(),
-    );
+    const commandManager = new CommandManager<{
+      "codeQL.openVariantAnalysisLogs": (
+        variantAnalysisId: number,
+      ) => Promise<number>;
+    }>(jest.fn(), jest.fn());
 
     // @ts-expect-error wrong command name should give a type error
     await commandManager.execute("abc", 4);
diff --git a/extensions/ql-vscode/test/vscode-tests/cli-integration/queries.test.ts b/extensions/ql-vscode/test/vscode-tests/cli-integration/queries.test.ts
index b3bd56a2371..8f3f3216827 100644
--- a/extensions/ql-vscode/test/vscode-tests/cli-integration/queries.test.ts
+++ b/extensions/ql-vscode/test/vscode-tests/cli-integration/queries.test.ts
@@ -278,7 +278,7 @@ describeWithCodeQL()("Queries", () => {
   function safeDel(file: string) {
     try {
       unlinkSync(file);
-    } catch (e) {
+    } catch {
       // ignore
     }
   }
diff --git a/extensions/ql-vscode/test/vscode-tests/no-workspace/model-editor/external-api-usage-query.test.ts b/extensions/ql-vscode/test/vscode-tests/no-workspace/model-editor/external-api-usage-query.test.ts
index 8bbda315a42..7a4fcd6f531 100644
--- a/extensions/ql-vscode/test/vscode-tests/no-workspace/model-editor/external-api-usage-query.test.ts
+++ b/extensions/ql-vscode/test/vscode-tests/no-workspace/model-editor/external-api-usage-query.test.ts
@@ -105,7 +105,17 @@ describe("runModelEditorQueries", () => {
             "/a/b/c/qlpack2.yml",
           ]),
         bqrsInfo: jest.fn().mockResolvedValue({
-          "result-sets": [],
+          "result-sets": [
+            {
+              name: "results",
+              rows: 45,
+              columns: [],
+            },
+          ],
+        }),
+        bqrsDecode: jest.fn().mockResolvedValue({
+          tuples: [],
+          columns: [],
         }),
       }),
       queryRunner: mockedObject<QueryRunner>({
@@ -140,7 +150,7 @@ describe("runModelEditorQueries", () => {
 
     const result = await runModelEditorQueries(Mode.Framework, options);
 
-    expect(result).not.toBeUndefined;
+    expect(result).not.toBeUndefined();
 
     expect(options.cliServer.resolveQlpacks).toHaveBeenCalledTimes(1);
     expect(options.cliServer.resolveQlpacks).toHaveBeenCalledWith([], true);
diff --git a/extensions/ql-vscode/test/vscode-tests/no-workspace/model-editor/suggestion-queries.test.ts b/extensions/ql-vscode/test/vscode-tests/no-workspace/model-editor/suggestion-queries.test.ts
index f3ebc013b1f..e5c71658717 100644
--- a/extensions/ql-vscode/test/vscode-tests/no-workspace/model-editor/suggestion-queries.test.ts
+++ b/extensions/ql-vscode/test/vscode-tests/no-workspace/model-editor/suggestion-queries.test.ts
@@ -200,7 +200,7 @@ describe("runSuggestionsQuery", () => {
 
     const result = await runSuggestionsQuery(Mode.Framework, options);
 
-    expect(result).not.toBeUndefined;
+    expect(result).not.toBeUndefined();
 
     expect(options.cliServer.resolveQlpacks).toHaveBeenCalledTimes(1);
     expect(options.cliServer.resolveQlpacks).toHaveBeenCalledWith([], true);
diff --git a/extensions/ql-vscode/test/vscode-tests/no-workspace/query-results.test.ts b/extensions/ql-vscode/test/vscode-tests/no-workspace/query-results.test.ts
index b4e27f60fdf..52087898d9a 100644
--- a/extensions/ql-vscode/test/vscode-tests/no-workspace/query-results.test.ts
+++ b/extensions/ql-vscode/test/vscode-tests/no-workspace/query-results.test.ts
@@ -408,7 +408,7 @@ describe("query-results", () => {
   function safeDel(file: string) {
     try {
       unlinkSync(file);
-    } catch (e) {
+    } catch {
       // ignore
     }
   }