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Add Guardrails functionality and tests to the 'tool-guardrails' sample
- Add the functionality - Rename `tool-guardrails` to `guardrails` - Change the README - Add an ability to run with the platform BOMs
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samples/chatbot/src/test/java/io/quarkiverse/langchain4j/tests/rag/RAGTest.java

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@@ -119,7 +119,8 @@ public void documentBasedAnswer() throws InterruptedException, URISyntaxExceptio
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boolean second = line.contains("""
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gen_ai_token_type="output"
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""".trim());
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return first && second;
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boolean third = line.contains("Bot");
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return first && second && third;
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})
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.orElseThrow(() -> new AssertionError("There is no metric for output tokens!"));
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assertTrue(outputTokensMetric.contains("ai_service_class_name=\"io.quarkiverse.langchain4j.sample.chatbot.Bot\""));
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@@ -1,14 +1,14 @@
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# Tool Guardrails Demo
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This demo showcases the implementation of **guardrails for tool/function calling** in Quarkus LangChain4j.
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This demo showcases the implementation of **guardrails** in Quarkus LangChain4j, including tool/function calling.
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Guardrails provide a mechanism to validate and control tool invocations at both input and output stages.
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## What are Tool Guardrails?
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## What are Guardrails?
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Tool guardrails are validation and transformation mechanisms that:
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Guardrails are validation and transformation mechanisms that:
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- **Input Guardrails**: Validate parameters and context before tool execution
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- **Output Guardrails**: Validate, filter, or transform tool results before returning to the LLM
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- **Input Guardrails**: Validate parameters and context before execution
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- **Output Guardrails**: Validate, filter, or transform results before returning to the LLM
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This enables:
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- Security controls (authorization, authentication)
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## Demo Overview
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This demo includes 6 different guardrails demonstrating various use cases:
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This demo includes 7 different guardrails demonstrating various use cases:
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### Input Guardrails
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6. **Combined Guardrails** - Multiple guardrails on one tool
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- Demonstrates guardrail chaining
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- Ordered execution
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7. **Profanity Guardrail** - Validation of AI output.
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- The simplest use case to show the basics
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- Checks chat AI output, fails if it contains prohibited word
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## Running the Demo
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### Start the application in dev mode:
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```bash
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mvn quarkus:dev
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mvn quarkus:dev -Dquarkus.langchain4j.openai.api-key=$API_KEY
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```
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The application will start on http://localhost:8080
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# Large result set will be truncated
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curl "http://localhost:8080/email?request=Search%20for%20all%20customers"
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```
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#### 4. Chat with the assistant (with output moderation)
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```bash
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$ curl -X POST localhost:8080/chatbot/moderated -w "\n" -d 'Hello, my name is Meatbag'
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[The AI answered with expletive]
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# The similar but non-prohibited name will not be flagged
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$ curl -X POST localhost:8080/chatbot/moderated -w "\n" -d 'Hello, my name is Fleabag'
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Hello Fleabag! How can I assist you today?
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```
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<modelVersion>4.0.0</modelVersion>
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<groupId>io.quarkiverse.langchain4j</groupId>
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<artifactId>quarkus-langchain4j-sample-tool-guardrails</artifactId>
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<name>Quarkus LangChain4j - Sample - Tool Guardrails</name>
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<artifactId>quarkus-langchain4j-sample-guardrails</artifactId>
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<name>Quarkus LangChain4j - Sample - Guardrails</name>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<quarkus.platform.version>3.27.1</quarkus.platform.version>
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<skipITs>true</skipITs>
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<surefire-plugin.version>3.2.5</surefire-plugin.version>
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<quarkus-langchain4j.version>999-SNAPSHOT</quarkus-langchain4j.version>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>${quarkus.platform.group-id}</groupId>
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<artifactId>${quarkus.platform.artifact-id}</artifactId>
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<version>${quarkus.platform.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-rest-jackson</artifactId>
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</dependency>
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<dependency>
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<groupId>io.quarkiverse.langchain4j</groupId>
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<artifactId>quarkus-langchain4j-openai</artifactId>
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<version>${quarkus-langchain4j.version}</version>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-security</artifactId>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-security</artifactId>
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<artifactId>quarkus-junit5</artifactId>
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<scope>test</scope>
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</dependency>
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<!-- Minimal dependencies to constrain the build -->
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<dependency>
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<groupId>io.quarkiverse.langchain4j</groupId>
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<artifactId>quarkus-langchain4j-openai-deployment</artifactId>
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<version>${quarkus-langchain4j.version}</version>
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<groupId>io.rest-assured</groupId>
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<artifactId>rest-assured</artifactId>
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<scope>test</scope>
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<type>pom</type>
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<exclusions>
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<exclusion>
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<groupId>*</groupId>
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<artifactId>*</artifactId>
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</exclusion>
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</exclusions>
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</dependency>
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</dependencies>
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<build>
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</build>
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<profiles>
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<profile>
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<id>default-project-deps</id>
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<activation>
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<property>
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<name>!platform-deps</name>
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</property>
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</activation>
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<properties>
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<quarkus-langchain4j.version>999-SNAPSHOT</quarkus-langchain4j.version>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>${quarkus.platform.group-id}</groupId>
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<artifactId>${quarkus.platform.artifact-id}</artifactId>
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<version>${quarkus.platform.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>io.quarkiverse.langchain4j</groupId>
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<artifactId>quarkus-langchain4j-openai</artifactId>
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<version>${quarkus-langchain4j.version}</version>
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</dependency>
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</dependencies>
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</profile>
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<profile>
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<id>platform-deps</id>
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<activation>
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<property>
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<name>platform-deps</name>
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</property>
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</activation>
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<properties>
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<quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>${quarkus.platform.group-id}</groupId>
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<artifactId>${quarkus.platform.artifact-id}</artifactId>
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<version>${quarkus.platform.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>${quarkus.platform.group-id}</groupId>
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<artifactId>quarkus-langchain4j-bom</artifactId>
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<version>${quarkus.platform.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>io.quarkiverse.langchain4j</groupId>
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<artifactId>quarkus-langchain4j-openai</artifactId>
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</dependency>
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</dependencies>
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</profile>
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<profile>
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<id>native</id>
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<activation>

samples/tool-guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/EmailFormatValidator.java renamed to samples/guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/EmailFormatValidator.java

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@@ -56,7 +56,7 @@ public ToolInputGuardrailResult validate(ToolInputGuardrailRequest request) {
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return ToolInputGuardrailResult.success();
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} catch (Exception e) {
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return ToolInputGuardrailResult.failure(
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return ToolInputGuardrailResult.fatal(
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"Failed to validate email format: " + e.getMessage(), e);
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}
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}

samples/tool-guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/EmailResource.java renamed to samples/guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/EmailResource.java

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samples/tool-guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/EmailService.java renamed to samples/guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/EmailService.java

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samples/tool-guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/EmailTools.java renamed to samples/guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/EmailTools.java

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samples/tool-guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/OutputSizeLimiter.java renamed to samples/guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/OutputSizeLimiter.java

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samples/tool-guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/RateLimitGuardrail.java renamed to samples/guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/RateLimitGuardrail.java

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samples/tool-guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/SensitiveDataFilter.java renamed to samples/guardrails/src/main/java/io/quarkiverse/langchain4j/sample/guardrails/SensitiveDataFilter.java

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