Add Prompt Egineering examples

2025-04-14 09:12:16 +02:00
parent e0ba3438ba
commit 5ca8720387
10 changed files with 1405 additions and 0 deletions
--- a/pom.xml
+++ b/pom.xml
@@ -41,6 +41,8 @@
 		<module>model-context-protocol/web-search/brave-chatbot</module>
 		<module>model-context-protocol/sampling/mcp-weather-webmvc-server</module>
 		<module>model-context-protocol/sampling/mcp-sampling-client</module>
+
+		<module>prompt-engineering/prompt-engineering-patterns</module>
 	</modules>

 </project>
--- a/prompt-engineering/prompt-engineering-patterns/.gitignore
+++ b/prompt-engineering/prompt-engineering-patterns/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
--- a/prompt-engineering/prompt-engineering-patterns/.mvn/wrapper/maven-wrapper.properties
+++ b/prompt-engineering/prompt-engineering-patterns/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+wrapperVersion=3.3.2
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip
--- a/prompt-engineering/prompt-engineering-patterns/README.md
+++ b/prompt-engineering/prompt-engineering-patterns/README.md
@@ -0,0 +1,23 @@
+# Prompt Engineering with Spring AI
+
+![Spring AI Prompt Engineering](prompt-engineering-spring-ai.png)
+
+## Overview
+
+This repository contains practical implementations of Prompt Engineering techniques using [Spring AI](https://docs.spring.io/spring-ai/reference/index.html). These examples accompany the blog post: [Spring AI Prompt Engineering Patterns](https://spring.io/blog/2025/04/14/spring-ai-prompt-engineering-patterns).
+
+The examples and patterns are based on the comprehensive [Prompt Engineering Guide](https://www.kaggle.com/whitepaper-prompt-engineering) that covers the theory, principles, and patterns of effective prompt engineering. 
+
+Here we shows how to translate those concepts into working Java code using Spring AI's fluent [ChatClient API](https://docs.spring.io/spring-ai/reference/api/chatclient.html). 
+
+
+#### Structure
+
+The examples follow the same structure and patterns outlined in the original Goolge Prompt Egineering guide, making it easy to reference between theory and implementation.
+
+## Resources
+
+- [Spring AI Documentation](https://docs.spring.io/spring-ai/reference/index.html)
+- [ChatClient API Reference](https://docs.spring.io/spring-ai/reference/api/chatclient.html)
+- [Google's Prompt Engineering Guide](https://www.kaggle.com/whitepaper-prompt-engineering)
+- [Spring AI Prompt Engineering Patterns  Blog](https://spring.io/blog/2025/04/14/spring-ai-prompt-engineering-patterns)
--- a/prompt-engineering/prompt-engineering-patterns/mvnw
+++ b/prompt-engineering/prompt-engineering-patterns/mvnw
@@ -0,0 +1,259 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.2
+#
+# Optional ENV vars
+# -----------------
+#   JAVA_HOME - location of a JDK home dir, required when download maven via java source
+#   MVNW_REPOURL - repo url base for downloading maven distribution
+#   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+#   MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+  [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+  native_path() { cygpath --path --windows "$1"; }
+  ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+  # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+  if [ -n "${JAVA_HOME-}" ]; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+      JAVACCMD="$JAVA_HOME/jre/sh/javac"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+      JAVACCMD="$JAVA_HOME/bin/javac"
+
+      if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+        echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+        echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+        return 1
+      fi
+    fi
+  else
+    JAVACMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v java
+    )" || :
+    JAVACCMD="$(
+      'set' +e
+      'unset' -f command 2>/dev/null
+      'command' -v javac
+    )" || :
+
+    if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+      echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+      return 1
+    fi
+  fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+  str="${1:-}" h=0
+  while [ -n "$str" ]; do
+    char="${str%"${str#?}"}"
+    h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+    str="${str#?}"
+  done
+  printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+  printf %s\\n "$1" >&2
+  exit 1
+}
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+  case "${key-}" in
+  distributionUrl) distributionUrl=$(trim "${value-}") ;;
+  distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+  esac
+done <"${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+  MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+  case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+  *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+  :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+  :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+  :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+  *)
+    echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+    distributionPlatform=linux-amd64
+    ;;
+  esac
+  distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+  ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${0##*/mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+  unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+  exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+  verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+  trap clean HUP INT TERM EXIT
+else
+  die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+  distributionUrl="${distributionUrl%.zip}.tar.gz"
+  distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+  verbose "Found wget ... using wget"
+  wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+  verbose "Found curl ... using curl"
+  curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+  verbose "Falling back to use Java to download"
+  javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+  targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+  cat >"$javaSource" <<-END
+	public class Downloader extends java.net.Authenticator
+	{
+	  protected java.net.PasswordAuthentication getPasswordAuthentication()
+	  {
+	    return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+	  }
+	  public static void main( String[] args ) throws Exception
+	  {
+	    setDefault( new Downloader() );
+	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+	  }
+	}
+	END
+  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+  verbose " - Compiling Downloader.java ..."
+  "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+  verbose " - Running Downloader.java ..."
+  "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+  distributionSha256Result=false
+  if [ "$MVN_CMD" = mvnd.sh ]; then
+    echo "Checksum validation is not supported for maven-mvnd." >&2
+    echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  elif command -v sha256sum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+      distributionSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $distributionSha256Result = false ]; then
+    echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+    echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+    exit 1
+  fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+  unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+  tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
--- a/prompt-engineering/prompt-engineering-patterns/mvnw.cmd
+++ b/prompt-engineering/prompt-engineering-patterns/mvnw.cmd
@@ -0,0 +1,149 @@
+<# : batch portion
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.3.2
+@REM
+@REM Optional ENV vars
+@REM   MVNW_REPOURL - repo url base for downloading maven distribution
+@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+  IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" (%__MVNW_CMD__% %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+  $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+  Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+  "maven-mvnd-*" {
+    $USE_MVND = $true
+    $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+    $MVN_CMD = "mvnd.cmd"
+    break
+  }
+  default {
+    $USE_MVND = $false
+    $MVN_CMD = $script -replace '^mvnw','mvn'
+    break
+  }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
+if ($env:MVNW_REPOURL) {
+  $MVNW_REPO_PATTERN = if ($USE_MVND) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+  $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace '^.*'+$MVNW_REPO_PATTERN,'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+$MAVEN_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain"
+if ($env:MAVEN_USER_HOME) {
+  $MAVEN_HOME_PARENT = "$env:MAVEN_USER_HOME/wrapper/dists/$distributionUrlNameMain"
+}
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+  Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+  Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+  exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+  Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+  if ($TMP_DOWNLOAD_DIR.Exists) {
+    try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+    catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+  }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+  $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+  if ($USE_MVND) {
+    Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+  }
+  Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+  if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+    Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+  }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+  Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+  if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+    Write-Error "fail to move MAVEN_HOME"
+  }
+} finally {
+  try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+  catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
--- a/prompt-engineering/prompt-engineering-patterns/pom.xml
+++ b/prompt-engineering/prompt-engineering-patterns/pom.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>3.4.4</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>org.springframework.ai.example</groupId>
+	<artifactId>prompt-engineering-patterns</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>prompt-engineering-patterns</name>
+	<description>Demo project for Spring Boot</description>
+
+	<properties>
+		<java.version>17</java.version>
+		<spring-ai.version>1.0.0-M7</spring-ai.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.ai</groupId>
+			<artifactId>spring-ai-starter-model-anthropic</artifactId>
+		</dependency>
+	</dependencies>
+
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>org.springframework.ai</groupId>
+				<artifactId>spring-ai-bom</artifactId>
+				<version>${spring-ai.version}</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
--- a/prompt-engineering/prompt-engineering-patterns/prompt-engineering-spring-ai.png
+++ b/prompt-engineering/prompt-engineering-patterns/prompt-engineering-spring-ai.png
--- a/prompt-engineering/prompt-engineering-patterns/src/main/java/org/springframework/ai/example/prompt_engineering/PromptEngineeringApplication.java
+++ b/prompt-engineering/prompt-engineering-patterns/src/main/java/org/springframework/ai/example/prompt_engineering/PromptEngineeringApplication.java
@@ -0,0 +1,821 @@
+package org.springframework.ai.example.prompt_engineering;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import org.springframework.ai.chat.client.ChatClient;
+import org.springframework.ai.chat.prompt.ChatOptions;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * @author Christian Tzolov
+ */
+@SpringBootApplication
+public class PromptEngineeringApplication {
+
+	ObjectMapper objectMapper = new ObjectMapper();
+
+	public static void main(String[] args) {
+		SpringApplication.run(PromptEngineeringApplication.class, args);
+	}
+
+	@Bean
+	public CommandLineRunner commandLineRunner(ChatClient.Builder chatClientBuilder) {
+		return args -> {
+
+			ChatClient chatClient = chatClientBuilder.build();
+
+			//@formatter:off
+			// 2. Prompting techniques (page 13)
+
+				// 2.1 General prompting / zero shot (page 15)
+				pt_zero_shot(chatClient);
+
+				// 2.2 One-shot & few-shot
+				pt_ones_shot_few_shots(chatClient);
+
+				// 2.3 System, contextual and role prompting
+
+					// 2.3.1 System prompting
+					pt_system_prompting_1(chatClient);
+					pt_system_prompting_2(chatClient);
+					pt_system_prompting_2_springai_style(chatClient);
+
+					// 2.3.2 Role prompting
+					pt_role_prompting_1(chatClient);
+					pt_role_prompting_2(chatClient); // in a humorous style.
+
+					// 2.3.3 Contextual prompting
+					pt_contextual_prompting(chatClient);
+
+				// 2.4 Step-back prompting
+				pt_step_back_prompting(chatClient.mutate());
+
+				// 2.5 Chain of Thought (CoT)
+				pt_chain_of_thought_zero_shot(chatClient);
+				pt_chain_of_thought_singleshot_fewshots(chatClient);
+
+				// 2.6 Self-consistency
+				pt_self_consistency(chatClient);
+
+				// 2.7 Tree of Thoughts (ToT)
+				pt_tree_of_thoughts_game(chatClient);
+				pt_tree_of_thoughts_problem(chatClient);
+
+
+				// 2.8 Automatic Prompt Engineering
+				pt_automatic_prompt_engineering(chatClient);
+
+				// 2.9 Code prompting
+
+					// 2.9.1 Prompts for writing code
+					pt_code_prompting_writing_code(chatClient);
+
+					// 2.9.2 Prompts for explaining code
+					pt_code_prompting_explaining_code(chatClient);
+
+					// 2.9.3 Prompts for translating code
+					pt_code_prompting_translating_code(chatClient);
+			//@formatter:on
+		};
+	}
+
+	// 2.1 General prompting / zero shot (page 15)
+	public void pt_zero_shot(ChatClient chatClient) {
+		// General prompting / zero shot (page 15)
+
+		enum Sentiment {
+			POSITIVE, NEUTRAL, NEGATIVE
+		}
+
+		Sentiment reviewSentiment = chatClient.prompt("""
+				Classify movie reviews as POSITIVE, NEUTRAL or NEGATIVE.
+				Review: "Her" is a disturbing study revealing the direction
+				humanity is headed if AI is allowed to keep evolving,
+				unchecked. I wish there were more movies like this masterpiece.
+				Sentiment:
+				""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(0.1)
+						.maxTokens(5)
+						.build())
+				.call()
+				.entity(Sentiment.class);
+
+		System.out.println("Output: " + reviewSentiment);
+	}
+
+	// 2.2 One-shot & few-shot
+	public void pt_ones_shot_few_shots(ChatClient chatClient) {
+
+		// One-shot & few-shot
+		// When creating prompts for AI models, it is helpful to provide examples.
+		// These examples can help the model understand what you are asking for.
+		// - one-shot prompt: provides a single example to the model.
+		// - few-shot prompt: provides multiple examples to the model.
+
+		// A few-shot prompt example, let's use the same gemini-pro model
+		// configuration settings as before, other than increasing the token limit to
+		// accommodate the
+		// need for a longer response. (page 16)
+
+		String pizzaOrder = chatClient.prompt("""
+				Parse a customer's pizza order into valid JSON
+
+				EXAMPLE 1:
+				I want a small pizza with cheese, tomato sauce, and pepperoni.
+				JSON Response:
+				```
+				{
+					"size": "small",
+					"type": "normal",
+					"ingredients": ["cheese", "tomato sauce", "peperoni"]
+				}
+				```
+
+				EXAMPLE 2:
+				Can I get a large pizza with tomato sauce, basil and mozzarella.
+				JSON Response:
+				```
+				{
+					"size": "large",
+					"type": "normal",
+					"ingredients": ["tomato sauce", "basil", "mozzarella"]
+				}
+				```
+
+				Now, I would like a large pizza, with the first half cheese and mozzarella.
+				And the other tomato sauce, ham and pineapple.
+
+				""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(0.1)
+						// Increasing the token limit to accommodate the need for a longer response.
+						.maxTokens(250)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + pizzaOrder);
+
+		// NOTE: The number of examples you need for few-shot prompting depends on a few
+		// factors,
+		// including the complexity of the task, the quality of the examples, and the
+		// capabilities of the
+		// generative AI (gen AI) model you are using. As a general rule of thumb, you
+		// should use at
+		// least three to five examples for few-shot prompting.
+		//
+		// To generate output that is robust to a variety of inputs, it is important to
+		// include edge
+		// cases in your examples. Edge cases are inputs that are unusual or unexpected,
+		// but that the model should still be able to handle.
+	}
+
+	// Sets the overall context and purpose for the language model. It
+	// defines the 'big picture' of what the model should be doing, like translating
+	// a language, classifying a review etc.
+
+	// 2.3.1 System prompting (1)
+	public void pt_system_prompting_1(ChatClient chatClient) {
+
+		String movieReview = chatClient
+				.prompt()
+				.system("Classify movie reviews as positive, neutral or negative. Only return the label in uppercase.")
+				.user("""
+						Review: "Her" is a disturbing study revealing the direction
+						humanity is headed if AI is allowed to keep evolving,
+						unchecked. It's so disturbing I couldn't watch it.
+
+						Sentiment:
+						""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.8)
+						.maxTokens(5)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + movieReview);
+
+		// We increased the temperature to get a higher creativity level, and I
+		// specified a higher token limit. However, because of my clear instruction on
+		// how to return the output the model didn't return extra text
+	}
+
+	// You could use a system prompt to generate a code snippet that is compatible
+	// with a specific programming language, or you could use a system prompt to
+	// return a certain structure like output in JSON format.
+
+	// 2.3.1 System prompting (2)
+	public void pt_system_prompting_2(ChatClient chatClient) {
+
+		String movieReview = chatClient
+				.prompt()
+				.system("""
+						Classify movie reviews as positive, neutral or negative. Return
+						valid JSON.
+
+						Use the Schema:
+
+						```
+						MOVIE:
+						{
+						"sentiment": String "POSITIVE" | "NEGATIVE" | "NEUTRAL",
+						"name": String
+						}
+						MOVIE REVIEWS:
+						{
+						"movie_reviews": [MOVIE]
+						}
+						```
+						""")
+				.user("""
+						Review: "Her" is a disturbing study revealing the direction
+						humanity is headed if AI is allowed to keep evolving,
+						unchecked. It's so disturbing I couldn't watch it.
+
+						JSON Response:
+						""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.8)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + movieReview);
+
+	}
+
+	// 2.3.1 (3) spring-ai System prompting - SpringAI style
+	public void pt_system_prompting_2_springai_style(ChatClient chatClient) throws JsonProcessingException {
+
+		record MovieReviews(Movie[] movie_reviews) {
+			enum Sentiment {
+				POSITIVE, NEUTRAL, NEGATIVE
+			}
+
+			record Movie(Sentiment sentiment, String name) {
+			}
+		}
+
+		MovieReviews movieReviews = chatClient
+				.prompt()
+				.system("""
+						Classify movie reviews as positive, neutral or negative. Return
+						valid JSON.
+						""")
+				.user("""
+						Review: "Her" is a disturbing study revealing the direction
+						humanity is headed if AI is allowed to keep evolving,
+						unchecked. It's so disturbing I couldn't watch it.
+
+						JSON Response:
+						""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.8)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.entity(MovieReviews.class);
+
+		System.out.println("Output: " + objectMapper.writeValueAsString(movieReviews));
+	}
+
+	// 2.3.2 Role prompting (1)
+	public void pt_role_prompting_1(ChatClient chatClient) {
+
+		// Goal Act as travel guide and provide 3 travel suggestions
+
+		String movieReview = chatClient
+				.prompt()
+				.system("""
+						I want you to act as a travel guide. I will write to you
+						about my location and you will suggest 3 places to visit near
+						me. In some cases, I will also give you the type of places I
+						will visit.
+						""")
+				.user("""
+						My suggestion: "I am in Amsterdam and I want to visit only museums."
+						Travel Suggestions:
+						""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.8)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + movieReview);
+
+	}
+
+	// 2.3.2 Role prompting (2)
+	public void pt_role_prompting_2(ChatClient chatClient) {
+
+		// Goal Act as travel guide and provide 3 travel suggestions
+		//
+		// In a humorous style.
+
+		String movieReview = chatClient
+				.prompt()
+				.system("""
+						I want you to act as a travel guide. I will write to you about
+						my location and you will suggest 3 places to visit near me in
+						a humorous style.
+						""")
+				.user("""
+						My suggestion: "I am in Amsterdam and I want to visit only museums."
+						Travel Suggestions:
+						""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.8)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + movieReview);
+	}
+
+	// 2.3.3 Contextual prompting
+	public void pt_contextual_prompting(ChatClient chatClient) {
+
+		// Goal: Suggest articles for a blog about retro games
+
+		String movieReview = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Suggest 3 topics to write an article about with a few lines of
+						description of what this article should contain.
+
+						Context: {context}
+						""")
+						.param("context", "You are writing for a blog about retro 80's arcade video games."))
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.8)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + movieReview);
+
+	}
+
+	// 2.4 Step-back prompting
+	public void pt_step_back_prompting(ChatClient.Builder chatClientBuilder) {
+
+		// (SpringAI tip) Set common options for the chat client.
+		var chatClient = chatClientBuilder
+				.defaultOptions(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.8)
+						.maxTokens(1024)
+						.build())
+				.build();
+
+		// Goal: Write a storyline for a level of a first-person shooter video game.
+
+		String stepBack = chatClient
+				.prompt("""
+						Based on popular first-person shooter action games, what are
+						5 fictional key settings that contribute to a challenging and
+						engaging level storyline in a first-person shooter video game?
+						""")
+				.call()
+				.content();
+
+		System.out.println("StepBack Output: " + stepBack + "\n");
+
+		String story = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Write a one paragraph storyline for a new level of a first-
+						person shooter video game that is challenging and engaging.
+
+						Context: {step-back}
+						""")
+						.param("step-back", stepBack))
+				.call()
+				.content();
+
+		System.out.println("Output: " + story);
+
+	}
+
+	// 2.5 Chain of Thought (CoT)
+
+	// 'zero-shot' Chain of thought.
+	public void pt_chain_of_thought_zero_shot(ChatClient chatClient) {
+
+		String output = chatClient
+				.prompt("""
+						When I was 3 years old, my partner was 3 times my age. Now,
+						I am 20 years old. How old is my partner?
+
+						Let's think step by step.
+						""")
+				.call()
+				.content();
+
+		System.out.println("Output: " + output + "\n");
+
+	}
+
+	public void pt_chain_of_thought_singleshot_fewshots(ChatClient chatClient) {
+
+		String output = chatClient
+				.prompt("""
+						Q: When my brother was 2 years old, I was double his age. Now
+						I am 40 years old. How old is my brother? Let's think step
+						by step.
+						A: When my brother was 2 years, I was 2 * 2 = 4 years old.
+						That's an age difference of 2 years and I am older. Now I am 40
+						years old, so my brother is 40 - 2 = 38 years old. The answer
+						is 38.
+						Q: When I was 3 years old, my partner was 3 times my age. Now,
+						I am 20 years old. How old is my partner? Let's think step
+						by step.
+						A:
+						""")
+				.call()
+				.content();
+
+		System.out.println("Output: " + output + "\n");
+
+	}
+
+	// 2.6 Self-consistency
+	public void pt_self_consistency(ChatClient chatClient) {
+
+		String email = """
+				Hi,
+				I have seen you use Wordpress for your website. A great open
+				source content management system. I have used it in the past
+				too. It comes with lots of great user plugins. And it's pretty
+				easy to set up.
+				I did notice a bug in the contact form, which happens when
+				you select the name field. See the attached screenshot of me
+				entering text in the name field. Notice the JavaScript alert
+				box that I inv0k3d.
+				But for the rest it's a great website. I enjoy reading it. Feel
+				free to leave the bug in the website, because it gives me more
+				interesting things to read.
+				Cheers,
+				Harry the Hacker.
+				""";
+
+		record EmailClassification(Classification classification, String reasoning) {
+			enum Classification {
+				IMPORTANT, NOT_IMPORTANT
+			}
+		}
+
+		int importantCount = 0;
+		int notImportantCount = 0;
+
+		for (int i = 0; i < 5; i++) {
+
+			EmailClassification output = chatClient
+					.prompt()
+					.user(u -> u.text("""
+							Email: {email}
+							Classify the above email as IMPORTANT or NOT IMPORTANT. Let's
+							think step by step and explain why.
+							""")
+							.param("email", email))
+					.options(ChatOptions.builder()
+							.model("claude-3-5-haiku-latest")
+							.temperature(1.0)
+							.topK(60)
+							.topP(0.9)
+							.maxTokens(1024)
+							.build())
+					.call()
+					.entity(EmailClassification.class);
+
+			if (output.classification() == EmailClassification.Classification.IMPORTANT) {
+				importantCount++;
+			} else {
+				notImportantCount++;
+			}
+
+			System.out
+					.println("Classification: [" + output.classification() + "], Reason: " + output.reasoning() + "\n");
+		}
+
+		if (importantCount > notImportantCount) {
+			System.out.println("The email is IMPORTANT. Count: " + importantCount);
+		} else {
+			System.out.println("The email is NOT IMPORTANT. Count: " + notImportantCount);
+		}
+
+	}
+
+	// 2.7 Tree of Thoughts (ToT)
+	// Implementation of Section 2.7: Tree of Thoughts (ToT) - Game solving example
+	public void pt_tree_of_thoughts_game(ChatClient chatClient) {
+		// Step 1: Generate multiple initial moves
+		String initialMoves = chatClient
+				.prompt("""
+						You are playing a game of chess. The board is in the starting position.
+						Generate 3 different possible opening moves. For each move:
+						1. Describe the move in algebraic notation
+						2. Explain the strategic thinking behind this move
+						3. Rate the move's strength from 1-10
+						""")
+				.options(ChatOptions.builder()
+						.temperature(0.7)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Initial Moves: " + initialMoves + "\n");
+
+		// Step 2: Evaluate and select the most promising move
+		String bestMove = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Analyze these opening moves and select the strongest one:
+						{moves}
+
+						Explain your reasoning step by step, considering:
+						1. Position control
+						2. Development potential
+						3. Long-term strategic advantage
+
+						Then select the single best move.
+						""").param("moves", initialMoves))
+				.call()
+				.content();
+
+		System.out.println("Best Move: " + bestMove + "\n");
+
+		// Step 3: Explore future game states from the best move
+		String gameProjection = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Based on this selected opening move:
+						{best_move}
+
+						Project the next 3 moves for both players. For each potential branch:
+						1. Describe the move and counter-move
+						2. Evaluate the resulting position
+						3. Identify the most promising continuation
+
+						Finally, determine the most advantageous sequence of moves.
+						""").param("best_move", bestMove))
+				.call()
+				.content();
+
+		System.out.println("Game Projection: " + gameProjection + "\n");
+	}
+
+	// Implementation of Section 2.7: Tree of Thoughts (ToT) - Problem solving
+	public void pt_tree_of_thoughts_problem(ChatClient chatClient) {
+		String problem = "Design a system to recommend movies to users based on their viewing history.";
+
+		// Step 1: Generate multiple solution approaches
+		String approaches = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Problem: {problem}
+
+						Generate 3 different approaches to solve this problem:
+						1. A content-based filtering approach
+						2. A collaborative filtering approach
+						3. A hybrid approach
+
+						For each approach, describe:
+						- The core algorithm/technique
+						- Key data requirements
+						- Potential advantages and limitations
+						""").param("problem", problem))
+				.call()
+				.content();
+
+		System.out.println("Approaches: " + approaches + "\n");
+
+		// Step 2: Evaluate approaches and select the most promising
+		String bestApproach = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Evaluate these solution approaches:
+						{approaches}
+
+						Compare them based on:
+						1. Scalability
+						2. Accuracy
+						3. Implementation complexity
+						4. Cold-start handling
+
+						Select the most promising approach with detailed reasoning.
+						""").param("approaches", approaches))
+				.call()
+				.content();
+		
+		System.out.println("Best Approach: " + bestApproach + "\n");
+
+		// Step 3: Refine and elaborate on the selected approach
+		String refinedSolution = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Based on the selected approach:
+						{best_approach}
+
+						Develop a detailed implementation plan:
+						1. System architecture
+						2. Data processing pipeline
+						3. Algorithm implementation details
+						4. Evaluation methodology
+
+						Address any limitations identified earlier and propose solutions.
+						""").param("best_approach", bestApproach))
+				.call()
+				.content();
+		
+		System.out.println("Refined Solution: " + refinedSolution + "\n");
+	}
+	// 2.8 Automatic Prompt Engineering
+
+	public void pt_automatic_prompt_engineering(ChatClient chatClient) {
+
+		String orderVariants = chatClient
+				.prompt("""
+						We have a band merchandise t-shirt webshop, and to train a
+						chatbot we need various ways to order: "One Metallica t-shirt
+						size S". Generate 10 variants, with the same semantics but keep
+						the same meaning.
+						""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.9)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Variants: " + orderVariants + "\n");
+
+		String output = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Please perform BLEU (Bilingual Evaluation Understudy) evaluation on the following variants:
+						----
+						{variants}
+						----
+
+						Select the instruction candidate with the highest evaluation score.
+						""").param("variants", orderVariants))
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(1.0)
+						.topK(40)
+						.topP(0.9)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + output + "\n");
+
+	}
+
+	// 2.9.1 Prompts for writing code
+	public void pt_code_prompting_writing_code(ChatClient chatClient) {
+
+		// Goal: Write a prompt to write code in Bash to rename files in a folder.
+
+		String output = chatClient
+				.prompt("""
+						Write a code snippet in Bash, which asks for a folder name.
+						Then it takes the contents of the folder and renames all the
+						files inside by prepending the name draft to the file name.
+						""")
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(0.1)
+						.topP(1.0)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + output + "\n");
+
+	}
+
+	// 2.9.2 Prompts for explaining code
+	public void pt_code_prompting_explaining_code(ChatClient chatClient) {
+
+		// Goal: Write a prompt to explain Bash code.
+
+		String code = """
+				#!/bin/bash
+				echo "Enter the folder name: "
+				read folder_name
+				if [ ! -d "$folder_name" ]; then
+				echo "Folder does not exist."
+				exit 1
+				fi
+				files=( "$folder_name"/* )
+				for file in "${files[@]}"; do
+				new_file_name="draft_$(basename "$file")"
+				mv "$file" "$new_file_name"
+				done
+				echo "Files renamed successfully."
+				""";
+
+		String output = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Explain to me the below Bash code:
+						```
+						{code}
+						```
+						""").param("code", code))
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(0.1)
+						.topP(1.0)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + output + "\n");
+
+	}
+
+	// 2.9.3 Prompts for translating code
+	public void pt_code_prompting_translating_code(ChatClient chatClient) {
+
+		// Goal: Write a prompt to translate Bash code to Python
+
+		String bashCode = """
+				```bash
+				#!/bin/bash
+				echo "Enter the folder name: "
+				read folder_name
+				if [ ! -d "$folder_name" ]; then
+				echo "Folder does not exist."
+				exit 1
+				fi
+				files=( "$folder_name"/* )
+				for file in "${files[@]}"; do
+				new_file_name="draft_$(basename "$file")"
+				mv "$file" "$new_file_name"
+				done
+				echo "Files renamed successfully."
+				```
+				""";
+
+		String output = chatClient
+				.prompt()
+				.user(u -> u.text("""
+						Translate the below Bash code to a Python snippet:
+						{code}
+						""").param("code", bashCode))
+				.options(ChatOptions.builder()
+						.model("claude-3-7-sonnet-latest")
+						.temperature(0.1)
+						.topP(1.0)
+						.maxTokens(1024)
+						.build())
+				.call()
+				.content();
+
+		System.out.println("Output: " + output + "\n");
+
+	}
+
+}
--- a/prompt-engineering/prompt-engineering-patterns/src/main/resources/application.properties
+++ b/prompt-engineering/prompt-engineering-patterns/src/main/resources/application.properties
@@ -0,0 +1,44 @@
+spring.application.name=prompt-engineering
+spring.main.web-application-type=none
+
+# 1. First you start by choosing a model. E.g. Anthropic Claude, OpenAI, etc.
+
+# 2. Once you choose your model you will need to figure out the model configuration. 
+# Most LLMs come with various configuration options that control the LLM’s output. 
+
+# 2.1 select the provider's specifc model and set the connection and access options
+spring.ai.anthropic.chat.options.model=claude-3-7-sonnet-latest
+spring.ai.anthropic.api-key=${ANTHROPIC_API_KEY}
+#spring.ai.openai.api-key=${OPENAI_API_KEY}
+
+# 2.2 Output length controls the number of tokens to generate in a response.
+spring.ai.anthropic.chat.options.max-tokens=500
+
+# 2.3 Sampling controls the randomness of the model’s output.
+
+# 2.3.1 Temperature
+# Temperature controls the degree of randomness in token selection. 
+# Lower temperatures are good for prompts that expect a more deterministic response, 
+# while higher temperatures can lead to more diverse or unexpected results.
+spring.ai.anthropic.chat.options.temperature=0.7
+
+# 2.3.2 Top-K and top-P
+# The best way to choose between top-K and top-P is to experiment with both methods
+# (or both together) and see which one produces the results you are looking for.
+
+# Top-K
+# Selects the top K most likely tokens from the model’s predicted distribution. 
+# The higher top-K, the more creative and varied the model’s output; 
+# the lower top-K, the more restive and factual the model’s output. 
+#spring.ai.anthropic.chat.options.top-k=
+
+# Top-P
+# Selects the top tokens whose cumulative probability does not exceed a certain value (P). 
+# Values for P range from 0 (greedy decoding) to 1 (all tokens in the LLM’s vocabulary).
+#spring.ai.anthropic.chat.options.top-p=1.0
+
+# ...
+#spring.ai.anthropic.chat.options.stop-sequences=
+
+
+