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Agentic workflow examples (#808)
* Add loop with maxIterations to the AgenticDSL Signed-off-by: Dmitrii Tikhomirov <[email protected]> * Agentic workflow examples Signed-off-by: Dmitrii Tikhomirov <[email protected]> * more examples Signed-off-by: Dmitrii Tikhomirov <[email protected]> * more examples Signed-off-by: Dmitrii Tikhomirov <[email protected]> * added README.md Signed-off-by: Dmitrii Tikhomirov <[email protected]> * post review Signed-off-by: Dmitrii Tikhomirov <[email protected]> * updated sequence demo Signed-off-by: Dmitrii Tikhomirov <[email protected]> --------- Signed-off-by: Dmitrii Tikhomirov <[email protected]>
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‎experimental/fluent/agentic/src/test/java/io/serverlessworkflow/fluent/agentic/Agents.java‎

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*/
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package io.serverlessworkflow.fluent.agentic;
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import dev.langchain4j.agent.tool.Tool;
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import dev.langchain4j.agentic.Agent;
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import dev.langchain4j.agentic.internal.AgentSpecification;
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import dev.langchain4j.service.SystemMessage;
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import dev.langchain4j.service.UserMessage;
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import dev.langchain4j.service.V;
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import java.util.List;
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@V("allowedDomains") List<String> allowedDomains,
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@V("links") List<String> links);
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}
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interface CreativeWriter {
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@UserMessage(
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"""
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You are a creative writer.
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Generate a draft of a story no more than
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3 sentences long around the given topic.
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Return only the story and nothing else.
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The topic is {{topic}}.
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""")
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@Agent("Generates a story based on the given topic")
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String generateStory(@V("topic") String topic);
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}
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interface AudienceEditor {
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@UserMessage(
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"""
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You are a professional editor.
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Analyze and rewrite the following story to better align
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with the target audience of {{audience}}.
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Return only the story and nothing else.
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The story is "{{story}}".
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""")
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@Agent("Edits a story to better fit a given audience")
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String editStory(@V("story") String story, @V("audience") String audience);
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}
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interface StyleEditor {
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@UserMessage(
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"""
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You are a professional editor.
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Analyze and rewrite the following story to better fit and be more coherent with the {{style}} style.
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Return only the story and nothing else.
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The story is "{{story}}".
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""")
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@Agent("Edits a story to better fit a given style")
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String editStory(@V("story") String story, @V("style") String style);
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}
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interface StyleScorer {
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@UserMessage(
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"""
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You are a critical reviewer.
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Give a review score between 0.0 and 1.0 for the following
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story based on how well it aligns with the style '{{style}}'.
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Return only the score and nothing else.
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The story is: "{{story}}"
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""")
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@Agent("Scores a story based on how well it aligns with a given style")
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double scoreStyle(@V("story") String story, @V("style") String style);
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}
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interface FoodExpert {
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@UserMessage(
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"""
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You are a great evening planner.
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Propose a list of 3 meals matching the given mood.
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The mood is {{mood}}.
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For each meal, just give the name of the meal.
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Provide a list with the 3 items and nothing else.
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""")
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@Agent
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List<String> findMeal(@V("mood") String mood);
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}
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interface AstrologyAgent {
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@SystemMessage(
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"""
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You are an astrologist that generates horoscopes based on the user's name and zodiac sign.
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""")
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@UserMessage(
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"""
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Generate the horoscope for {{name}} who is a {{sign}}.
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""")
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@Agent("An astrologist that generates horoscopes based on the user's name and zodiac sign.")
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String horoscope(@V("name") String name, @V("sign") String sign);
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}
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enum RequestCategory {
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LEGAL,
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MEDICAL,
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TECHNICAL,
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UNKNOWN
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}
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interface CategoryRouter {
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@UserMessage(
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"""
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Analyze the following user request and categorize it as 'legal', 'medical' or 'technical'.
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In case the request doesn't belong to any of those categories categorize it as 'unknown'.
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Reply with only one of those words and nothing else.
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The user request is: '{{request}}'.
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""")
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@Agent("Categorizes a user request")
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RequestCategory classify(@V("request") String request);
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}
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interface MedicalExpert {
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@dev.langchain4j.service.UserMessage(
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"""
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You are a medical expert.
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Analyze the following user request under a medical point of view and provide the best possible answer.
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The user request is {{it}}.
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""")
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@Tool("A medical expert")
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String medicalRequest(String request);
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}
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interface LegalExpert {
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@dev.langchain4j.service.UserMessage(
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"""
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You are a legal expert.
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Analyze the following user request under a legal point of view and provide the best possible answer.
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The user request is {{it}}.
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""")
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@Tool("A legal expert")
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String legalRequest(String request);
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}
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interface TechnicalExpert {
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@dev.langchain4j.service.UserMessage(
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"""
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You are a technical expert.
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Analyze the following user request under a technical point of view and provide the best possible answer.
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The user request is {{it}}.
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""")
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@Tool("A technical expert")
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String technicalRequest(String request);
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}
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}

‎experimental/fluent/agentic/src/test/java/io/serverlessworkflow/fluent/agentic/AgentsUtils.java‎

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.chatModel(BASE_MODEL)
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.build());
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}
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public static Agents.CreativeWriter newCreativeWriter() {
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return spy(
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AgenticServices.agentBuilder(Agents.CreativeWriter.class)
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.outputName("story")
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.chatModel(BASE_MODEL)
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.build());
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}
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public static Agents.AudienceEditor newAudienceEditor() {
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return spy(
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AgenticServices.agentBuilder(Agents.AudienceEditor.class)
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.outputName("story")
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.chatModel(BASE_MODEL)
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.build());
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}
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public static Agents.StyleEditor newStyleEditor() {
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return spy(
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AgenticServices.agentBuilder(Agents.StyleEditor.class)
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.outputName("story")
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.chatModel(BASE_MODEL)
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.build());
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}
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public static Agents.StyleScorer newStyleScorer() {
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return spy(
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AgenticServices.agentBuilder(Agents.StyleScorer.class)
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.outputName("score")
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.chatModel(BASE_MODEL)
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.build());
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}
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public static Agents.FoodExpert newFoodExpert() {
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return spy(
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AgenticServices.agentBuilder(Agents.FoodExpert.class)
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.chatModel(BASE_MODEL)
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.outputName("meals")
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.build());
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}
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public static Agents.AstrologyAgent newAstrologyAgent() {
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return spy(
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AgenticServices.agentBuilder(Agents.AstrologyAgent.class)
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.chatModel(BASE_MODEL)
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.outputName("horoscope")
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.build());
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}
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public static Agents.CategoryRouter newCategoryRouter() {
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return spy(
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AgenticServices.agentBuilder(Agents.CategoryRouter.class)
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.chatModel(BASE_MODEL)
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.outputName("category")
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.build());
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}
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public static Agents.MedicalExpert newMedicalExpert() {
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return spy(
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AgenticServices.agentBuilder(Agents.MedicalExpert.class)
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.chatModel(BASE_MODEL)
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.outputName("response")
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.build());
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}
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public static Agents.TechnicalExpert newTechnicalExpert() {
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return spy(
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AgenticServices.agentBuilder(Agents.TechnicalExpert.class)
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.chatModel(BASE_MODEL)
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.outputName("response")
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.build());
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}
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public static Agents.LegalExpert newLegalExpert() {
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return spy(
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AgenticServices.agentBuilder(Agents.LegalExpert.class)
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.chatModel(BASE_MODEL)
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.outputName("response")
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.build());
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}
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}

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