Add GraalVM native image support for SkillsTool

examples/subagent-demo/pom.xml

@@ -42,15 +42,15 @@
 			<version>0.6.0</version>
 		</dependency>
 
-		<!-- <dependency>
+		<dependency>
 			<groupId>org.springframework.ai</groupId>
 			<artifactId>spring-ai-starter-model-anthropic</artifactId>
-		</dependency> -->
+		</dependency>
 
-		<dependency>
+		<!-- <dependency>
 			<groupId>org.springframework.ai</groupId>
 			<artifactId>spring-ai-starter-model-openai-sdk</artifactId>
-		</dependency>
+		</dependency> -->
 
 		<!-- <dependency>
 			<groupId>org.springframework.ai</groupId>

spring-ai-agent-utils/src/main/java/org/springaicommunity/agent/aot/AgentUtilsRuntimeHints.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2025 - 2025 the original author or authors.
+ *
+ * Licensed 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
+ *
+ * https://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.
+ */
+package org.springaicommunity.agent.aot;
+
+import org.springaicommunity.agent.tools.SkillsTool;
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+
+/**
+ * {@link RuntimeHintsRegistrar} for GraalVM native image support.
+ *
+ * @author Christian Tzolov
+ */
+public class AgentUtilsRuntimeHints implements RuntimeHintsRegistrar {
+
+	@Override
+	public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
+
+		// Built-in library classpath resources
+		hints.resources().registerPattern("agent/*.md");
+		hints.resources().registerPattern("prompt/*.md");
+
+		// User-provided skills — conventional classpath location
+		hints.resources().registerPattern("META-INF/skills/**/*.md");
+
+		// Reflection for SkillsTool inner types used via tool invocation
+		hints.reflection().registerType(SkillsTool.SkillsInput.class, MemberCategory.values());
+		hints.reflection().registerType(SkillsTool.SkillsFunction.class, MemberCategory.values());
+	}
+
+}

spring-ai-agent-utils/src/main/resources/META-INF/spring/aot.factories

@@ -0,0 +1,2 @@
+org.springframework.aot.hint.RuntimeHintsRegistrar=\
+  org.springaicommunity.agent.aot.AgentUtilsRuntimeHints

spring-ai-agent-utils/src/test/java/org/springaicommunity/agent/aot/AgentUtilsRuntimeHintsTests.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2025 - 2025 the original author or authors.
+ *
+ * Licensed 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
+ *
+ * https://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.
+ */
+package org.springaicommunity.agent.aot;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springaicommunity.agent.tools.SkillsTool;
+
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.predicate.RuntimeHintsPredicates;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link AgentUtilsRuntimeHints}.
+ *
+ * @author Christian Tzolov
+ */
+class AgentUtilsRuntimeHintsTests {
+
+	private RuntimeHints hints;
+
+	@BeforeEach
+	void setUp() {
+		this.hints = new RuntimeHints();
+		new AgentUtilsRuntimeHints().registerHints(this.hints, getClass().getClassLoader());
+	}
+
+	@Test
+	void builtInAgentResourcesAreRegistered() {
+		assertThat(RuntimeHintsPredicates.resource().forResource("agent/GENERAL_PURPOSE_SUBAGENT.md"))
+			.accepts(this.hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("agent/BASH_SUBAGENT.md"))
+			.accepts(this.hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("agent/EXPLORE_SUBAGENT.md"))
+			.accepts(this.hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("agent/PLAN_SUBAGENT.md"))
+			.accepts(this.hints);
+	}
+
+	@Test
+	void builtInPromptResourcesAreRegistered() {
+		assertThat(RuntimeHintsPredicates.resource().forResource("prompt/AUTO_MEMORY_TOOLS_SYSTEM_PROMPT.md"))
+			.accepts(this.hints);
+	}
+
+	@Test
+	void userSkillResourcePatternIsRegistered() {
+		assertThat(RuntimeHintsPredicates.resource().forResource("META-INF/skills/my-skill/SKILL.md"))
+			.accepts(this.hints);
+		assertThat(RuntimeHintsPredicates.resource().forResource("META-INF/skills/nested/dir/SKILL.md"))
+			.accepts(this.hints);
+	}
+
+	@Test
+	void skillsInputReflectionIsRegistered() {
+		assertThat(RuntimeHintsPredicates.reflection()
+			.onType(SkillsTool.SkillsInput.class)
+			.withMemberCategories(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS, MemberCategory.INVOKE_PUBLIC_METHODS))
+			.accepts(this.hints);
+	}
+
+	@Test
+	void skillsFunctionReflectionIsRegistered() {
+		assertThat(RuntimeHintsPredicates.reflection()
+			.onType(SkillsTool.SkillsFunction.class)
+			.withMemberCategories(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS, MemberCategory.INVOKE_PUBLIC_METHODS))
+			.accepts(this.hints);
+	}
+
+}