diff --git a/.gitignore b/.gitignore
index a2fcc2e..a8c8997 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,3 +43,5 @@ yarn-error.log*
 # Temporary files
 *.tmp
 *.temp
+# Keep .claude/ clean for hand-on section
+.claude/
\ No newline at end of file
diff --git a/01-slash-commands/README.md b/01-slash-commands/README.md
index 98caac8..c6ad692 100644
--- a/01-slash-commands/README.md
+++ b/01-slash-commands/README.md
@@ -91,6 +91,9 @@ Guides you through PR preparation checklist including linting, testing, and comm
 - Creating conventional commit messages
 - Generating PR summary
 
+**Screenshot**
+![/pr](pr-slash-command.png)
+
 ### 3. `/generate-api-docs` - API Documentation Generator
 Generates comprehensive API documentation from source code.
 
diff --git a/01-slash-commands/pr-slash-command.png b/01-slash-commands/pr-slash-command.png
new file mode 100644
index 0000000..789e5c2
Binary files /dev/null and b/01-slash-commands/pr-slash-command.png differ
diff --git a/01-slash-commands/push-all.md b/01-slash-commands/push-all.md
new file mode 100644
index 0000000..ee681ad
--- /dev/null
+++ b/01-slash-commands/push-all.md
@@ -0,0 +1,473 @@
+---
+name: Commit and push everything
+description: Stage all changes, create commit, and push to remote (use with caution)
+tags: git, workflow, automation
+---
+
+# Commit and Push Everything
+
+⚠️ **CAUTION**: This command will stage ALL changes, commit them, and push to the remote repository. Use only when you're confident all changes should be committed together.
+
+## Pre-flight Safety Checks
+
+Before proceeding, I will verify:
+
+1. **Current Status**
+   - Run `git status` to see what will be committed
+   - Ensure no unwanted files are included
+   - Verify you're on the correct branch
+
+2. **Review Changes**
+   - Run `git diff --stat` to see change statistics
+   - Confirm all changes are intentional
+   - Check for any uncommitted work
+
+3. **Security Checks**
+   - ❌ No secrets or credentials in changes
+   - ❌ No API keys, passwords, or tokens
+   - ❌ No `.env` files or private keys
+   - ✅ `.gitignore` properly configured
+   - ✅ No large binary files without Git LFS
+   - ✅ No build artifacts (node_modules, dist, __pycache__)
+
+## Workflow Steps
+
+### Step 1: Show Current Status
+
+Run `git status` and display:
+- Modified files
+- Added files
+- Deleted files
+- Untracked files
+
+### Step 2: Show Change Statistics
+
+Run `git diff --stat` to show:
+- Number of files changed
+- Total insertions
+- Total deletions
+
+### Step 3: Safety Verification
+
+⚠️ **STOP if any of these are detected:**
+
+```bash
+# Sensitive files:
+.env
+.env.local
+*.key
+*.pem
+credentials.json
+secrets.yaml
+config/database.yml (with passwords)
+*.p12
+*.pfx
+id_rsa
+*.cer
+
+# Large files (>10MB)
+*.mp4, *.mov, *.zip, *.tar.gz
+
+# Build artifacts:
+node_modules/
+dist/
+build/
+__pycache__/
+*.pyc
+.DS_Store
+thumbs.db
+*.swp
+```
+
+If any detected, **WARN USER** and ask for confirmation.
+
+### Step 4: Request Confirmation
+
+Present summary and ask:
+
+```
+📊 Changes Summary:
+- X files modified
+- Y files added
+- Z files deleted
+- Total: +AAA insertions, -BBB deletions
+
+⚠️ I will now:
+1. Stage all changes (git add .)
+2. Create a descriptive commit
+3. Push to remote repository
+
+Current branch: [branch-name]
+Remote: [remote-url]
+
+🔒 Safety checks:
+✅ No secrets detected
+✅ No large files
+✅ .gitignore configured
+⚠️ [Any warnings]
+
+Type 'yes' to proceed or 'no' to cancel.
+```
+
+**WAIT for explicit user confirmation before proceeding.**
+
+### Step 5: Stage All Changes (After Confirmation)
+
+Execute:
+```bash
+git add .
+```
+
+Verify staging:
+```bash
+git status
+```
+
+### Step 6: Generate Commit Message
+
+Analyze the changes and create a descriptive conventional commit message:
+
+**Format:**
+```
+[type]: Brief summary (max 72 characters)
+
+Detailed description of changes:
+- Key change 1
+- Key change 2
+- Key change 3
+```
+
+**Commit Types:**
+- `feat`: New feature or enhancement
+- `fix`: Bug fix
+- `docs`: Documentation changes only
+- `style`: Code formatting, missing semicolons, etc.
+- `refactor`: Code restructuring without behavior change
+- `test`: Adding or updating tests
+- `chore`: Maintenance, dependencies, config
+- `perf`: Performance improvements
+- `build`: Build system or external dependencies
+- `ci`: CI/CD configuration changes
+
+**Examples:**
+```
+feat: Add user authentication with JWT tokens
+
+- Implement login and registration endpoints
+- Add JWT token generation and validation
+- Create authentication middleware
+- Add comprehensive auth tests
+```
+
+```
+docs: Update all concept README files with comprehensive documentation
+
+Extract and consolidate information from guide into individual folders
+- Add architecture diagrams and tables
+- Include practical examples
+- Expand best practices sections
+```
+
+### Step 7: Create Commit
+
+Execute:
+```bash
+git commit -m "$(cat <<'EOF'
+[Generated commit message]
+EOF
+)"
+```
+
+Show commit hash and message.
+
+### Step 8: Push to Remote
+
+Execute:
+```bash
+git push
+```
+
+If push fails, try:
+```bash
+git pull --rebase origin [branch-name]
+git push
+```
+
+### Step 9: Verify Success
+
+Show:
+```bash
+git log -1 --oneline --decorate
+```
+
+Confirm:
+```
+✅ Successfully pushed to remote!
+
+Commit: [hash] [message]
+Branch: [branch] → origin/[branch]
+Files changed: X
+```
+
+## Safety Guidelines
+
+### ❌ DO NOT Proceed If:
+
+- **Secrets detected**: API keys, passwords, tokens, certificates
+- **Sensitive data**: Database dumps, user data, PII
+- **Large files**: Files >10MB without Git LFS
+- **Build artifacts**: node_modules, dist, __pycache__, .venv
+- **Temporary files**: .DS_Store, *.swp, *.tmp, thumbs.db
+- **User hasn't confirmed**: Always wait for explicit "yes"
+- **Protected branch**: main/master without proper review process
+- **Merge conflicts**: Unresolved conflicts exist
+- **Failing tests**: Pre-commit hooks or CI failing
+
+### ✅ Good Use Cases:
+
+- Documentation updates across multiple files
+- Feature implementation with tests and docs
+- Bug fixes with related test updates
+- Configuration and setup changes
+- Refactoring with comprehensive changes
+- Project-wide formatting or linting fixes
+- End-of-day commit of working feature
+
+### ⚠️ Warning Signs - Ask User First:
+
+```
+Modified: .env
+Modified: config/secrets.yml
+Added: private_key.pem
+Added: node_modules/ (1,234 files)
+Warning: Large file detected: video.mp4 (45MB)
+Warning: On protected branch: main
+Warning: Pre-commit hook failed
+```
+
+## Error Handling
+
+### If `git add .` fails:
+1. Check file permissions
+2. Look for locked files
+3. Verify repository is initialized
+4. Run `git status` for diagnostics
+
+### If `git commit` fails:
+1. **Pre-commit hooks failed**: Fix issues and retry
+2. **No changes to commit**: Already up to date
+3. **Invalid commit message**: Adjust format
+4. **Git config missing**: Set user.name and user.email
+
+### If `git push` fails:
+1. **Rejected (non-fast-forward)**:
+   ```bash
+   git pull --rebase
+   git push
+   ```
+
+2. **Permission denied**: Check credentials and access
+
+3. **Remote branch doesn't exist**:
+   ```bash
+   git push -u origin [branch-name]
+   ```
+
+4. **Protected branch**: Use pull request workflow
+
+## Alternative Workflows
+
+If user wants more control, suggest:
+
+**Option 1: Selective Staging**
+```
+Would you like to:
+1. Select specific files to commit?
+2. Review each file individually?
+3. Create multiple commits by category?
+```
+
+**Option 2: Interactive Staging**
+```
+Use `git add -p` for interactive patch selection?
+This lets you review each change before staging.
+```
+
+**Option 3: Pull Request Flow**
+```
+Instead of direct push, would you like to:
+1. Create a feature branch
+2. Push to branch
+3. Create pull request
+Use the /pr command for this workflow.
+```
+
+## Post-Push Actions
+
+After successful push:
+
+### 1. Verify on Remote
+- Check GitHub/GitLab/Bitbucket web interface
+- Confirm commit appears correctly
+- Review diff on remote
+
+### 2. CI/CD Pipeline (if applicable)
+- Confirm pipeline started
+- Monitor build status
+- Check for any failures
+
+### 3. Team Notification (if applicable)
+- Notify in Slack/Teams channel
+- Update issue tracker (close/link issues)
+- Tag reviewers for PR
+
+### 4. Local Cleanup
+```bash
+# Verify everything is clean
+git status
+
+# Should show:
+# On branch [name]
+# Your branch is up to date with 'origin/[name]'.
+# nothing to commit, working tree clean
+```
+
+## Example Interaction
+
+**User**: `/push-all`
+
+**Assistant**:
+```
+🔍 Analyzing repository status...
+
+📊 Current Status:
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+Modified files (9):
+  ✏️  01-slash-commands/README.md
+  ✏️  02-subagents/README.md
+  ✏️  03-memory/README.md
+  ✏️  04-mcp/README.md
+  ✏️  05-skills/README.md
+  ✏️  06-plugins/README.md
+  ✏️  07-hooks/README.md
+  ✏️  08-checkpoints/README.md
+  ✏️  09-advanced-features/README.md
+
+📈 Change Statistics:
+  9 files changed
+  +3,706 insertions
+  -587 deletions
+
+🔒 Safety Checks:
+  ✅ No secrets detected
+  ✅ No large files (>10MB)
+  ✅ .gitignore properly configured
+  ✅ No build artifacts
+  ✅ No temporary files
+
+🌿 Branch Information:
+  Current: main
+  Remote: origin/main
+  Status: Up to date (can fast-forward)
+
+📝 Proposed commit message:
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+docs: Update all concept README files with comprehensive documentation
+
+Extract and consolidate information from guide into individual folders:
+- Add architecture diagrams, tables, and flowcharts
+- Include practical code examples and templates
+- Expand best practices and troubleshooting sections
+- Provide installation instructions for all concepts
+
+Total: +3,706 lines of comprehensive documentation
+
+🤖 Generated with Claude Code
+Co-Authored-By: Claude <noreply@anthropic.com>
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+⚠️  I will now:
+  1. Stage all changes (git add .)
+  2. Commit with the message above
+  3. Push to origin/main
+
+⚠️  This affects 9 files. Please confirm.
+
+Type 'yes' to proceed, 'no' to cancel, or 'review' to see diffs.
+```
+
+**User**: `yes`
+
+**Assistant**:
+```
+✅ Staging all changes...
+   git add .
+
+✅ Creating commit...
+   git commit -m "docs: Update all concept README files..."
+
+✅ Pushing to remote...
+   git push origin main
+
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+🎉 Successfully pushed to remote!
+
+Commit: 41527ae docs: Update all concept README files...
+Branch: main → origin/main
+Files: 9 changed (+3,706, -587)
+Remote: https://github.com/user/repo
+
+✅ All changes have been successfully pushed!
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+```
+
+## Quick Reference Card
+
+**What this command does:**
+1. ✅ Checks git status and shows changes
+2. ✅ Displays change statistics
+3. ✅ Performs comprehensive safety checks
+4. ⚠️ Requests explicit user confirmation
+5. ✅ Stages all changes with `git add .`
+6. ✅ Generates descriptive conventional commit
+7. ✅ Creates commit with proper message
+8. ✅ Pushes to remote repository
+9. ✅ Verifies and confirms success
+
+**When to use:**
+- ✅ Coordinated multi-file documentation updates
+- ✅ Feature implementation with tests and docs
+- ✅ Bug fixes affecting multiple files
+- ✅ Project-wide refactoring or formatting
+- ✅ End-of-day commits of working features
+- ✅ Configuration and setup changes
+
+**When NOT to use:**
+- ❌ Uncertain about what's being committed
+- ❌ Contains sensitive data or secrets
+- ❌ On protected branches (main/master) without review
+- ❌ Merge conflicts are present
+- ❌ Want granular commit history for different changes
+- ❌ Pre-commit hooks are failing
+- ❌ Want to review each change individually
+
+## Related Commands
+
+- **`/pr`** - Full pull request preparation with checklist
+- **`/optimize`** - Code optimization before committing
+- **Individual git commands** - For more granular control
+
+## Best Practices
+
+1. **Use descriptive branch names**: `feature/auth`, `fix/login-bug`
+2. **Commit related changes together**: Don't mix features and fixes
+3. **Review before pushing**: Always check `git diff`
+4. **Pull before push**: Avoid conflicts with `git pull --rebase`
+5. **Use conventional commits**: Helps with changelog generation
+6. **Test before commit**: Run tests to catch issues early
+7. **Keep commits atomic**: One logical change per commit when possible
+8. **Write clear messages**: Future you will thank present you
+
+---
+
+**⚠️ Remember**: With great automation comes great responsibility. Always review your changes before pushing! When in doubt, use individual git commands for more control.