diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
new file mode 100644
index 0000000..9a67237
--- /dev/null
+++ b/.github/workflows/pre-commit.yml
@@ -0,0 +1,21 @@
+name: pre-commit
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+      - name: Install pre-commit
+        run: pip install pre-commit
+      - name: Run pre-commit
+        run: pre-commit run --all-files 
\ No newline at end of file
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..33a032f
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,12 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-added-large-files
+  - repo: https://github.com/koalaman/shellcheck-precommit
+    rev: v0.9.0
+    hooks:
+      - id: shellcheck
+        files: \.(sh)$ 
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d3c5837
--- /dev/null
+++ b/README.md
@@ -0,0 +1,28 @@
+## Pre-commit Hooks
+
+This project uses [pre-commit](https://pre-commit.com/) to ensure code quality and consistent formatting for all contributors.
+
+### First-time setup
+
+1. Run the setup script (recommended):
+   ```bash
+   ./setup.sh
+   ```
+   This will install pre-commit (if not already installed) and set up the git hooks for you.
+
+2. Or, manually install pre-commit and the hooks:
+   ```bash
+   pip install pre-commit
+   pre-commit install
+   ```
+
+### Running hooks manually
+
+To check all files with pre-commit hooks:
+```bash
+pre-commit run --all-files
+```
+
+### CI Enforcement
+
+All commits and pull requests are checked with pre-commit hooks in CI. You must pass these checks to merge code. 
\ No newline at end of file
diff --git a/git_repos_rebase_commit_push.sh b/git_repos_rebase_commit_push.sh
new file mode 100755
index 0000000..5e4aa85
--- /dev/null
+++ b/git_repos_rebase_commit_push.sh
@@ -0,0 +1,113 @@
+#!/bin/bash
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+CYAN='\033[0;36m'
+NC='\033[0m' # No Color
+
+failed_repos=()
+failed_msgs=()
+success_repos=()
+
+gitdirs=$(find . -type d -name ".git")
+
+for gitdir in $gitdirs; do
+    repo=$(dirname "$gitdir")
+    cd "$repo" || continue
+    echo -e "${CYAN}📁 Processing: $repo${NC}"
+    repo_failed=0
+    msg=""
+
+    # Stash uncommitted changes if any
+    uncommitted=$(git status --porcelain | wc -l | tr -d ' ')
+    stashed=0
+    if [ "$uncommitted" -gt 0 ]; then
+        echo -e "  ${YELLOW}Stashing $uncommitted uncommitted change(s)...${NC}"
+        if git stash push -u -m "Auto-stash before rebase and push by script"; then
+            stashed=1
+        else
+            echo -e "  ${RED}Failed to stash changes! Skipping repo.${NC}"
+            repo_failed=1
+            msg="Failed to stash changes."
+        fi
+    fi
+
+    if [ "$repo_failed" -eq 0 ]; then
+        # Fetch and rebase
+        git remote update > /dev/null 2>&1
+        if git rev-parse --abbrev-ref --symbolic-full-name @{u} > /dev/null 2>&1; then
+            echo -e "  ${YELLOW}Rebasing onto upstream...${NC}"
+            if ! git rebase @{u}; then
+                echo -e "  ${RED}Rebase failed! Attempting to abort and restore stash.${NC}"
+                git rebase --abort
+                repo_failed=1
+                msg="Rebase failed."
+            fi
+        else
+            echo -e "  ${RED}No upstream branch set. Skipping rebase and push.${NC}"
+            repo_failed=1
+            msg="No upstream branch set."
+        fi
+    fi
+
+    if [ "$repo_failed" -eq 0 ]; then
+        # Push local-only commits if any
+        ahead=$(git rev-list --count @{u}..HEAD 2>/dev/null)
+        if [ "$ahead" -gt 0 ]; then
+            echo -e "  ${YELLOW}Pushing $ahead local commit(s) to remote...${NC}"
+            if ! git push; then
+                echo -e "  ${RED}Push failed!${NC}"
+                repo_failed=1
+                msg="Push failed."
+            fi
+        else
+            echo -e "  ${GREEN}No local-only commits to push.${NC}"
+        fi
+    fi
+
+    # Restore stashed changes if any
+    if [ "$stashed" -eq 1 ]; then
+        echo -e "  ${YELLOW}Restoring stashed changes...${NC}"
+        if ! git stash pop; then
+            echo -e "  ${RED}Stash pop failed! You may need to resolve conflicts manually.${NC}"
+            repo_failed=1
+            msg="Stash pop failed."
+        fi
+    fi
+
+    # Final check
+    ahead_final=0
+    if git rev-parse --abbrev-ref --symbolic-full-name @{u} > /dev/null 2>&1; then
+        ahead_final=$(git rev-list --count @{u}..HEAD 2>/dev/null)
+    fi
+    if [ "$repo_failed" -eq 0 ] && [ "$ahead_final" -eq 0 ]; then
+        echo -e "  ${GREEN}✅ Repo is up to date with remote. No local-only commits.${NC}"
+        success_repos+=("$repo")
+    else
+        if [ "$repo_failed" -eq 0 ]; then
+            msg="Still $ahead_final local-only commit(s) after push!"
+        fi
+        echo -e "  ${RED}❌ $msg${NC}"
+        failed_repos+=("$repo")
+        failed_msgs+=("$msg")
+    fi
+
+    echo -e "${CYAN}──────────────────────────────────────────────${NC}"
+    cd - > /dev/null || exit
+done
+
+# Summary
+printf "\n${CYAN}===== SUMMARY =====${NC}\n"
+if [ ${#success_repos[@]} -gt 0 ]; then
+    echo -e "${GREEN}Repos successfully rebased and pushed:${NC}"
+    for repo in "${success_repos[@]}"; do
+        echo -e "  $repo"
+    done
+fi
+if [ ${#failed_repos[@]} -gt 0 ]; then
+    echo -e "\n${RED}Repos with issues:${NC}"
+    for i in "${!failed_repos[@]}"; do
+        echo -e "  ${failed_repos[$i]}: ${failed_msgs[$i]}"
+    done
+fi 
\ No newline at end of file
diff --git a/setup.sh b/setup.sh
new file mode 100644
index 0000000..fa9dd82
--- /dev/null
+++ b/setup.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+# Bootstrap script to install pre-commit and set up git hooks
+set -e
+
+if ! command -v pre-commit >/dev/null 2>&1; then
+    echo "pre-commit not found, installing via pip..."
+    pip3 install pre-commit
+else
+    echo "pre-commit already installed."
+fi
+
+pre-commit install
+
+echo "pre-commit hooks installed!" 
\ No newline at end of file