diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..9e31981
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1 @@
+* @splitio/sdk
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..81a9a8e
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,32 @@
+name: test
+on:
+  pull_request:
+    branches:
+      - '*'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Run tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 'lts/*'
+          cache: 'npm'
+
+      - name: npm ci
+        run: npm ci
+
+      - name: npm check
+        run: npm run check
+
+      - name: npm test
+        run: npm run test
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..49239fa
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,9 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v6.0.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-json
+      - id: check-yaml
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
diff --git a/package.json b/package.json
index 527e3dc..54ffd02 100644
--- a/package.json
+++ b/package.json
@@ -60,9 +60,6 @@
     "build": "rimraf lib es && npm run build-cjs && npm run build-esm",
     "check": "npm run check:version",
     "check:version": "cross-env NODE_ENV=test tape -r ./ts-node.register src/settings/__tests__/defaults.spec.js",
-    "pretest-ts-decls": "npm run build-esm && npm run build-cjs && npm link",
-    "test-ts-decls": "./scripts/ts-tests.sh",
-    "posttest-ts-decls": "npm unlink && npm install",
     "test": "cross-env NODE_ENV=test tape -r ./ts-node.register src/__tests__/node.spec.js | tap-min",
     "publish:rc": "npm run check && npm run build && npm publish --tag canary",
     "publish:stable": "npm run check && npm run build && npm publish"
diff --git a/scripts/build_esm_replace_imports.sh b/scripts/build_esm_replace_imports.sh
index 81cfb81..efa9e81 100755
--- a/scripts/build_esm_replace_imports.sh
+++ b/scripts/build_esm_replace_imports.sh
@@ -3,6 +3,9 @@
 # replace splitio-commons imports to use ES modules
 replace '@splitsoftware/splitio-commons/src' '@splitsoftware/splitio-commons/esm' ./es -r
 
+# Fix import extension in es/index.js
+replace './lib/js-split-provider' './lib/js-split-provider.js' ./es/index.js -r
+
 if [ $? -eq 0 ]
 then
   exit 0
diff --git a/scripts/ts-tests.sh b/scripts/ts-tests.sh
deleted file mode 100755
index 2263e92..0000000
--- a/scripts/ts-tests.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-
-cd ts-tests ## Go to typescript tests folder
-echo "Installing dependencies for TypeScript declarations testing..."
-npm install ## Install dependencies
-npm install @types/node@6.0.31 ## Install type definitions for Node.js v6.x (the oldest supported version)
-echo "Dependencies installed, linking the package."
-npm link @splitsoftware/splitio ## Link to the cloned code
-echo "Running tsc compiler."
-./node_modules/.bin/tsc ## Run typescript compiler. No need for flags as we have a tsconfig.json file
-
-echo "Testing again with the latest @types/node version..."
-npm install @types/node@14 ## Install latest type definitions for Node.js
-echo "Dependencies installed, linking the package."
-npm link @splitsoftware/splitio ## Link to the cloned code
-echo "Running tsc compiler."
-./node_modules/.bin/tsc ## Run typescript compiler. No need for flags as we have a tsconfig.json file
-
-if [ $? -eq 0 ]
-then
-  echo "✅  Successfully compiled TS tests."
-  npm unlink @splitsoftware/splitio
-  exit 0
-else
-  echo "☠️  Error compiling TS tests."
-  npm unlink @splitsoftware/splitio
-  exit 1
-fi
diff --git a/src/__tests__/nodeSuites/client.spec.js b/src/__tests__/nodeSuites/client.spec.js
index e134e64..2cdc813 100644
--- a/src/__tests__/nodeSuites/client.spec.js
+++ b/src/__tests__/nodeSuites/client.spec.js
@@ -47,11 +47,13 @@ export default async function(assert) {
   };
 
   const getBooleanSplitWithKeyTest = async (client) => {
-    let result = await client.getBooleanValue('my_feature', false);
-    assert.equals(result, true);
+    let result = await client.getBooleanDetails('my_feature', false);
+    assert.equals(result.value, true);
+    assert.looseEquals(result.flagMetadata, { desc: 'this applies only to ON treatment' });
 
-    result = await client.getBooleanValue('my_feature', true, { targetingKey: 'randomKey' });
-    assert.equals(result, false);
+    result = await client.getBooleanDetails('my_feature', true, { targetingKey: 'randomKey' });
+    assert.equals(result.value, false);
+    assert.looseEquals(result.flagMetadata, {});
   };
 
   const getStringSplitTest = async (client) => {
diff --git a/src/index.ts b/src/index.ts
index 039d5a4..6750e9f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1 +1 @@
-export * from './lib/js-split-provider.js';
+export * from './lib/js-split-provider';
diff --git a/src/lib/js-split-provider.ts b/src/lib/js-split-provider.ts
index 6fdaf55..6bcfc1b 100644
--- a/src/lib/js-split-provider.ts
+++ b/src/lib/js-split-provider.ts
@@ -20,6 +20,7 @@ type Consumer = {
 };
 
 const CONTROL_VALUE_ERROR_MESSAGE = "Received the 'control' value from Split.";
+const CONTROL_TREATMENT = "control";
 
 export class OpenFeatureSplitProvider implements Provider {
   metadata = {
@@ -53,32 +54,15 @@ export class OpenFeatureSplitProvider implements Provider {
       this.transformContext(context)
     );
 
-    let value: boolean;
-    switch (details.value as unknown) {
-      case "on":
-        value = true;
-        break;
-      case "off":
-        value = false;
-        break;
-      case "true":
-        value = true;
-        break;
-      case "false":
-        value = false;
-        break;
-      case true:
-        value = true;
-        break;
-      case false:
-        value = false;
-        break;
-      case "control":
-        throw new FlagNotFoundError(CONTROL_VALUE_ERROR_MESSAGE);
-      default:
-        throw new ParseError(`Invalid boolean value for ${details.value}`);
+    if ( details.value === "on" || details.value === "true" ) {
+      return { ...details, value: true };
+    }
+
+    if ( details.value === "off" || details.value === "false" ) {
+      return { ...details, value: false };
     }
-    return { ...details, value };
+
+    throw new ParseError(`Invalid boolean value for ${details.value}`);
   }
 
   async resolveStringEvaluation(
@@ -90,9 +74,6 @@ export class OpenFeatureSplitProvider implements Provider {
       flagKey,
       this.transformContext(context)
     );
-    if (details.value === "control") {
-      throw new FlagNotFoundError(CONTROL_VALUE_ERROR_MESSAGE);
-    }
     return details;
   }
 
@@ -130,14 +111,19 @@ export class OpenFeatureSplitProvider implements Provider {
       );
     } else {
       await this.initialized;
-      const value = this.client.getTreatment(
+      const {treatment: value, config}: SplitIO.TreatmentWithConfig = this.client.getTreatmentWithConfig(
         consumer.key,
         flagKey,
         consumer.attributes
       );
+      if (value === CONTROL_TREATMENT) {
+        throw new FlagNotFoundError(CONTROL_VALUE_ERROR_MESSAGE);
+      }
+      const flagMetadata = config ? JSON.parse(config) : undefined;
       const details: ResolutionDetails<string> = {
         value: value,
         variant: value,
+        flagMetadata: flagMetadata,
         reason: StandardResolutionReasons.TARGETING_MATCH,
       };
       return details;