diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 4f0c385..0359bd3 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,3 +1,7 @@
+# Contributing to OpenFeature CLI
+
+Thank you for your interest in contributing to the OpenFeature CLI! This document provides guidelines and instructions to help you get started with contributing to the project. Whether you're fixing a bug, adding a new feature, or improving documentation, your contributions are greatly appreciated.
+
 ## Contributing New Generators
 
 We welcome contributions for new generators to extend the functionality of the OpenFeature CLI. Below are the steps to contribute a new generator:
@@ -42,6 +46,7 @@ make test-csharp
 ```
 
 This will:
+
 1. Build the CLI
 2. Generate a C# client
 3. Compile the C# code in a Docker container
@@ -49,6 +54,55 @@ This will:
 
 Consider adding more integration tests for new generators.
 
+## Setting Up Lefthook
+
+To streamline the setup of Git hooks for this project, we utilize [Lefthook](https://github.com/evilmartians/lefthook). Lefthook automates pre-commit and pre-push checks, ensuring consistent enforcement of best practices across the team. These checks include code formatting, documentation generation, and running tests.
+
+This tool is particularly helpful for new contributors or those returning to the project after some time, as it provides a seamless way to align with the project's standards. By catching issues early in your local development environment, Lefthook helps you address potential problems before opening a Pull Request, saving time and effort for both contributors and maintainers.
+
+### Installation
+
+1. Install Lefthook using Homebrew:
+
+   ```bash
+   brew install lefthook
+   ```
+
+2. Install the Lefthook configuration into your Git repository:
+
+   ```bash
+   lefthook install
+   ```
+
+### Pre-Commit Hook
+
+The pre-commit hook is configured to run the following check:
+
+1. **Code Formatting**: Ensures all files are properly formatted using `go fmt`. Any changes made by `go fmt` will be automatically staged.
+
+### Pre-Push Hook
+
+The pre-push hook is configured to run the following checks:
+
+1. **Documentation Generation**: Runs `make generate-docs` to ensure documentation is up-to-date. If any changes are detected, the push will be blocked until the changes are committed.
+2. **Tests**: Executes `make test` to verify that all tests pass. If any tests fail, the push will be blocked.
+
+### Running Hooks Manually
+
+You can manually run the hooks using the following commands:
+
+- Pre-commit hook:
+
+  ```bash
+  lefthook run pre-commit
+  ```
+
+- Pre-push hook:
+
+  ```bash
+  lefthook run pre-push
+  ```
+
 ## Templates
 
 ### Data
diff --git a/Makefile b/Makefile
index 5e87ad0..2b68a76 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,3 @@
-
 .PHONY: test
 test: 
 	@echo "Running tests..."
@@ -18,4 +17,10 @@ generate-docs:
 generate-schema:
 	@echo "Generating schema..."
 	@go run ./schema/generate-schema.go
-	@echo "Schema generated successfully!"
\ No newline at end of file
+	@echo "Schema generated successfully!"
+
+.PHONY: fmt
+fmt:
+	@echo "Running go fmt..."
+	@go fmt ./...
+	@echo "Code formatted successfully!"
\ No newline at end of file
diff --git a/internal/flagset/flagset.go b/internal/flagset/flagset.go
index 33d3155..b96eca3 100644
--- a/internal/flagset/flagset.go
+++ b/internal/flagset/flagset.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"sort"
+	"strings"
 
 	"github.com/open-feature/cli/internal/filesystem"
 	"github.com/open-feature/cli/internal/manifest"
@@ -64,7 +65,7 @@ func Load(manifestPath string) (*Flagset, error) {
 	if err != nil {
 		return nil, err
 	} else if len(validationErrors) > 0 {
-		return nil, fmt.Errorf("validation failed: %v", validationErrors)
+		return nil, errors.New(FormatValidationError(validationErrors))
 	}
 
 	var flagset Flagset
@@ -132,3 +133,43 @@ func (fs *Flagset) UnmarshalJSON(data []byte) error {
 
 	return nil
 }
+func FormatValidationError(issues []manifest.ValidationError) string {
+	var sb strings.Builder
+	sb.WriteString("flag manifest validation failed:\n\n")
+
+	// Group messages by flag path
+	grouped := make(map[string]struct {
+		flagType string
+		messages []string
+	})
+
+	for _, issue := range issues {
+		entry := grouped[issue.Path]
+		entry.flagType = issue.Type
+		entry.messages = append(entry.messages, issue.Message)
+		grouped[issue.Path] = entry
+	}
+
+	// Sort paths for consistent output
+	paths := make([]string, 0, len(grouped))
+	for path := range grouped {
+		paths = append(paths, path)
+	}
+	sort.Strings(paths)
+
+	// Format each row
+	for _, path := range paths {
+		entry := grouped[path]
+		flagType := entry.flagType
+		if flagType == "" {
+			flagType = "missing"
+		}
+		sb.WriteString(fmt.Sprintf(
+			"- flagType: %s\n  flagPath: %s\n  errors:\n    ~ %s\n  \tSuggestions:\n      \t- flagType: boolean\n      \t- defaultValue: true\n\n",
+			flagType,
+			path,
+			strings.Join(entry.messages, "\n    ~ "),
+		))
+	}
+	return sb.String()
+}
diff --git a/lefthook.yml b/lefthook.yml
new file mode 100644
index 0000000..758bdac
--- /dev/null
+++ b/lefthook.yml
@@ -0,0 +1,21 @@
+# This file configures Lefthook, a Git hooks manager, for the project.
+# For detailed instructions on how to contribute and set up Lefthook,
+# please refer to the relevant section in the contributing documentation (CONTRIBUTING.md).
+pre-commit:
+  commands:
+    go-fmt:
+      run: go fmt ./...
+      stage_fixed: true
+pre-push:
+  commands:
+    generate-docs:
+      run: |
+        make generate-docs
+        if ! git diff --quiet; then
+          echo "Documentation is outdated. Please run 'make generate-docs' and commit the changes."
+          exit 1
+        fi
+      skip: false
+    tests:
+      run: make test
+      skip: false