Java Edition of Claude Code CLI is Here! Solon Code CLI Released

Published: (February 20, 2026 at 03:38 AM EST)
6 min read
Source: Dev.to

Source: Dev.to

Introduction

When AI meets code, and the essence of Claude Code meets the Solon AI framework—a smart terminal assistant truly belonging to the Java ecosystem is born.

Remember the shock when Claude Code CLI was released? That AI assistant capable of chatting in the terminal, generating videos, sending emails, writing code, and understanding project structures finally has a Java implementation!

Today, the Solon AI framework officially launches Solon Code CLI — a smart terminal tool that fully embraces the design philosophy of Claude Code CLI while deeply integrating with the Java ecosystem.

  • Compatible with Claude Code Agent Skills specifications
  • Compatible with CLAUDE.md specifications

Solon Code CLI does more than just mimic the surface features of Claude Code CLI. From its foundation (Solon AI) to its core logic and interaction patterns, it aligns with the Claude Code philosophy across the board and features deep optimizations for Java development scenarios.

Licensed under the MIT Open Source License, it allows for arbitrary modification and customization.

Quick Start

  1. Edit the LLM configuration in README.md (you can even give it a nickname like “Xiaohua”).

  2. Run the starter script:

    • macOS / Linux → run.sh
    • Windows → run.cmd

You’ll be greeted with a fresh AI‑powered terminal:

Xiaohua v0.0.12
/Users/yourname/projects/myapp/

User > 

No bloated command parameters, no complex configurations. Just like talking to an experienced programmer, you only need to state your requirements.

Core Commands

init – Project Initialization

Xiaohua v0.0.12
/Users/yourname/projects/myapp/

User > init
Re-initializing workspace...
Local index refreshed successfully! 172 files scanned and indexed in 154 ms.
Verified project contract. (Maven (Root))

User > 
  • What it does:
    • Automatically identifies your project structure, technology stack, and local file index.
    • Generates a CLAUDE.md file in the project root – the heart of the Claude Code specification – recording build commands, testing methods, and coding standards. This file serves as a living document for both the AI and your team members.
User > Local search server related code

Xiaohua
Users who want to find the server‑specific code of the protocol need to search locally for the server‑specific code. I should use `full_text_search` to search for server‑related content in the project.

❯ full_text_search query=server
Found 19 results (sorted by relevance):

Path: acp-core/src/test/java/com/agentclientprotocol/sdk/spec/McpServerConfigurationTest.java
Score: 1.94, Line: ~22
Preview: ...sertj.core.api.Assertions.assertThat;  /**  * Tests for MCP server configuration serialization and deserialization.  *  *   * Per the ACP spec:  * 
  * Stdio transport: N...

Based on Lucene‑powered intelligent search, it instantly locates the critical code you need.

Retrieve a Class with Perfect Logging

User > Give WebSocketAcpAgentTransport class under the perfect log (based on slf4j specification)

Xiaohua
I searched for this class first and then refined the SLF4J log for it.

❯ full_text_search query=WebSocketAcpAgentTransport
Five results were found (in order of relevance):

1. Path: acp-websocket-jetty/src/test/java/com/agentclientprotocol/sdk/agent/transport/WebSocketAcpAgentTransportTest.java
   Score: 3.28, Line: ~18
   Preview: ...ssertions.assertThatThrownBy;  /**  * Unit tests for {@link WebSocketAcpAgentTransport}.  */ class WebSocketAcpAgentTransportTest { ...

2. Path: acp-websocket-jetty/src/test/java/com/agentclientprotocol/sdk/integration/WebSocketClientAgentTest.java
   Score: 2.68, Line: ~14
   Preview: ...ncAgent; import com.agentclientprotocol.sdk.agent.transport.WebSocketAcpAgentTransport; import com.agentclientprotocol.sdk.client.AcpAsyncClient; ...

3. Path: acp-websocket-jetty/src/main/java/com/agentclientprotocol/sdk/agent/transport/WebSocketAcpAgentTransport.java
   Score: 2.57, Line: ~70
   Preview: ...ncy>  * }  *  * @author Mark Pollack  */ public class WebSocketAcpAgentTransport implements AcpAgentTransport {      private static final Logger logger = LoggerFactory.getLogger...

4. Path: README.md
   Score: 1.65, Line: ~342
   Preview: ```java
   import com.agentclientprotocol.sdk.agent.transport.WebSocketAcpAgentTransport;
   var transport = new WebSocketAcpAgentTransport(8080, // port...

❯ read_file


*(The actual file content would be displayed here.)*

## Verification‑Driven Development  

Solon Code CLI follows the **“verification‑driven”** principle of Claude Code: **tests must be run after modifying code** to ensure changes are safe and reliable.  

For high‑risk operations, Solon Code CLI features a built‑in **security audit policy** similar to Claude Code. It intelligently intercepts potentially dangerous actions.

## Example: Fetch a Remote Web Page  

```text
User > Get the contents of https://solon.noear.org/ web page

Xiaohua
The user wants to access the contents of https://solon.noear.org/. I need to use a tool that fetches web content.

Available tools:
1. `bash` – can execute shell commands like `curl` or `wget`
2. `full_text_search` – local search (not suitable here)
3. Other tools – mainly file manipulation

The most straightforward way is to use the `bash` tool to execute the `curl` command.

Permission Required
Command: curl -s https://solon.noear.org/

(After permission is granted, the CLI would return the page HTML.)

License

MIT Open Source License – free to modify, redistribute, and customize.

Solon Code CLI – Intelligent Terminal Assistant for Java Developers

Born for Java developers, an intelligent terminal assistant sharing the same DNA as Claude Code.

What It Does

It intelligently intercepts (via the customizable HitlStrategy) the following risky operations and asks for confirmation before execution:

  • System privileged commandssudo, chmod, chown
  • Network outbound operationscurl, wget, ssh
  • Path‑traversal attacks../
  • Combined command injections;, &

Only the operations you confirm will be executed, keeping security fully aligned with Claude Code.

Architecture – “Pool‑Box Model”

One AI core with three connection methods:

MethodDescription
CLIDirect chat with AI in the terminal – the purest experience (enabled by default).
WebVisual interactive interface reachable at http://localhost:8080/cli.
ACP (Agent Communication Protocol)Seamless connection to any IDE plugin or client supporting the protocol (future VS Code / IntelliJ IDEA integration, remote‑server usage, shared AI resources for teams).

Configuration Samples

CLI (default)

solon:
  code:
    cli:
      cliEnabled: true
      cliPrintSimplified: true

Web UI (optional)

solon:
  code:
    cli:
      webEnabled: false          # set to true to enable
      webEndpoint: "/cli"

ACP (optional)

solon:
  code:
    cli:
      acpEnabled: false          # set to true to enable
      acpTransport: "websocket"  # "stdio" or "websocket"
      acpEndpoint: "/acp"

Download (≈ 17 MB)

  • GitHub:
  • Gitee:

Quick Start

  1. Extract the zip package.
  2. Edit application.yaml (or application.yml) with your API key and model details.
solon:
  code:
    cli:
      nickname: "Xiaohua"
      workDir: "my-project"
      chatModel:
        apiUrl: "https://api.deepseek.com/v1/chat/completions"
        apiKey: "sk-xxxx"
        model: "deepseek-chat"
      planningMode: true
      hitlEnabled: true
  1. Run the CLI:

    • macOS / Linux

      sh run.sh
    • Windows

      run.cmd
    • Or directly with Java

      java -jar SolonCodeCLI.jar

Why Use Solon Code CLI?

  • Not a replacement for Claude Code – it brings Claude‑style AI programming into the Java ecosystem.
  • Open‑source (MIT), fully customizable.
  • Integrates with CI/CD pipelines, custom AI toolchains, or team‑wide development environments.
  • GitHub Repository:
  • Documentation & Issues: Available in the repository.

Ready to bring AI‑powered efficiency to your Java projects?
The Java edition of Claude Code is here – give Solon Code CLI a try!

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