feat(extensions): Add dynamic loading of ReActAgent system prompts from Nacos

[Sunrisea]

AgentScope-Java Version

[The version of AgentScope-Java you are working on, e.g. 1.0.8, check your pom.xml dependency version or run mvn dependency:tree | grep agentscope-parent:pom(only mac/linux)]
1.0.9-SNAPSHOT

Description

• Added NacosPromptListener in the extension module to listen for and retrieve
  prompt templates from Nacos

• Updated agentscope-nacos-spring-boot-starter:
  • Added AgentscopeNacosPromptAutoConfiguration auto-configuration class
  • Added AgentScopeNacosPromptProperties configuration properties class
  • Added AgentscopeNacosReActAgentAutoConfiguration auto-configuration class
  • Updated spring.factories to register new auto-configuration classes
  • Added dependency declarations for agentscope-spring-boot-starter
  and agentscope-core

Checklist

Please check the following items before code is ready to be reviewed.

• Code has been formatted with mvn spotless:apply
• All tests are passing (mvn test)
• Javadoc comments are complete and follow project conventions
• Related documentation has been updated (e.g. links, examples, etc.)
• Code is ready for review

[cla-assistant]

All committers have signed the CLA.

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[gemini-code-assist]

Summary of Changes

Hello @Sunrisea, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request integrates Nacos for dynamic management of system prompts within the AgentScope framework, specifically for ReActAgents. It introduces a new listener to fetch and update prompts from Nacos, along with Spring Boot auto-configuration to seamlessly enable this functionality. This allows for externalized and real-time configurable agent prompts, improving flexibility and operational control over AI agent behavior.

Highlights

• Dynamic Prompt Management: Introduced a new NacosPromptListener class that enables dynamic loading and real-time updates of prompt templates for AI agents directly from Nacos, enhancing configuration flexibility.
• Spring Boot Auto-configuration: Enhanced the agentscope-nacos-spring-boot-starter with new auto-configuration classes (AgentscopeNacosPromptAutoConfiguration and AgentscopeNacosReActAgentAutoConfiguration) to seamlessly integrate Nacos-driven prompts into Spring Boot applications.
• ReActAgent Integration: Configured ReActAgent instances to fetch their system prompts from Nacos, allowing for externalized and dynamically updated agent behavior, with a fallback mechanism to YAML-defined prompts.
• Configuration Properties: Added AgentScopeNacosPromptProperties to provide dedicated configuration options for Nacos prompt integration, including enabling/disabling the feature, specifying the prompt key, and defining template variables.

Changelog

• agentscope-extensions/agentscope-extensions-nacos/agentscope-extensions-nacos-a2a/src/main/java/io/agentscope/core/nacos/prompt/NacosPromptListener.java
  • Added new class NacosPromptListener to handle fetching, caching, and dynamically updating prompt templates from Nacos.
  • Implemented methods for retrieving prompts by key, supporting template arguments for rendering, and providing default values.
  • Integrated Nacos Listener for real-time updates of prompt configurations.
• agentscope-extensions/agentscope-spring-boot-starters/agentscope-nacos-spring-boot-starter/pom.xml
  • Added agentscope-spring-boot-starter and agentscope-core as provided and optional dependencies.
• agentscope-extensions/agentscope-spring-boot-starters/agentscope-nacos-spring-boot-starter/src/main/java/io/agentscope/spring/boot/nacos/AgentscopeNacosPromptAutoConfiguration.java
  • Added new auto-configuration class to set up Nacos ConfigService and NacosPromptListener beans for prompt management.
  • Enabled conditional activation based on agentscope.nacos.prompt.enabled property.
• agentscope-extensions/agentscope-spring-boot-starters/agentscope-nacos-spring-boot-starter/src/main/java/io/agentscope/spring/boot/nacos/AgentscopeNacosReActAgentAutoConfiguration.java
  • Added new auto-configuration class responsible for assembling ReActAgent instances.
  • Configured ReActAgent to dynamically load its system prompt from Nacos via NacosPromptListener, with a fallback to a default prompt.
• agentscope-extensions/agentscope-spring-boot-starters/agentscope-nacos-spring-boot-starter/src/main/java/io/agentscope/spring/boot/nacos/constants/NacosConstants.java
  • Added a new constant NACOS_PROMPT_PREFIX for agentscope.nacos.prompt configuration properties.
• agentscope-extensions/agentscope-spring-boot-starters/agentscope-nacos-spring-boot-starter/src/main/java/io/agentscope/spring/boot/nacos/properties/AgentScopeNacosPromptProperties.java
  • Added new configuration properties class AgentScopeNacosPromptProperties to manage Nacos prompt settings, including enabled, sysPromptKey, and variables.
• agentscope-extensions/agentscope-spring-boot-starters/agentscope-nacos-spring-boot-starter/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports
  • Registered the new auto-configuration classes: AgentscopeNacosPromptAutoConfiguration and AgentscopeNacosReActAgentAutoConfiguration.

Activity

• The author has formatted the code using mvn spotless:apply.
• All tests are passing, confirmed by mvn test.
• Javadoc comments are complete and adhere to project conventions.
• Related documentation has been updated.
• The code is marked as ready for review.

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[gemini-code-assist]

Code Review

This pull request introduces a valuable feature for dynamically loading ReActAgent system prompts from Nacos. The implementation is well-structured, adding a NacosPromptListener and corresponding Spring Boot auto-configuration classes. The code is clean and follows good practices for creating starters. My review includes a few suggestions to enhance code quality, focusing on immutability, performance, and code clarity. Overall, this is a solid contribution.

[codecov]

Codecov Report

❌ Patch coverage is 86.77686% with 16 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...ntscope/core/nacos/prompt/NacosPromptListener.java	83.33%	6 Missing and 7 partials ⚠️
...os/AgentscopeNacosReActAgentAutoConfiguration.java	86.36%	2 Missing and 1 partial ⚠️

📢 Thoughts on this report? Let us know!