Gules - Complete Jules AI Toolkit

A comprehensive Rust toolkit for Jules AI - the autonomous coding agent. Pure SDK, CLI tools, and MCP server in one modular ecosystem.

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✨ What is Gules?

Gules provides three ways to interact with Jules AI:

1. 🔧 SDK (jules-rs) - Pure 1:1 Rust SDK for Jules API (independently publishable)
2. 💻 CLI (jules-cli / gules) - Command-line interface with extended features
3. 🔌 MCP (jules-mcp) - Model Context Protocol server for AI assistants

All components implement 100% pure 1:1 SDK mapping - every Jules API method is available.

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🚀 Quick Start

Build Options

Gules uses feature flags to let you build exactly what you need:

# CLI only (default) - Extended CLI, no MCP
cargo build -p gules

# CLI + Basic MCP - Extended CLI + 9 SDK MCP tools
cargo build -p gules --features mcp

# CLI + Extended MCP - Extended CLI + 11 MCP tools (SDK + extended)
cargo build -p gules --features extended-mcp

# Pure SDK CLI - Minimal, 9 core commands only
cargo build -p jules-cli

# Pure SDK MCP - Independently usable MCP server
cargo build -p jules-mcp

See FEATURE_FLAGS.md for complete details.

Installation

# From source (requires Rust 1.70+)
git clone https://github.com/kiwina/gules
cd gules

# Install with extended MCP support (recommended)
cargo install --path crates/gules --features extended-mcp

# Or CLI-only (faster build, smaller binary)
cargo install --path crates/gules

# Verify installation
gules --version

Configuration

Create ~/.config/gules/config.toml:

api_key = "your-jules-api-key-here"

Get your API key from jules.google.com/settings

First Session

# Create a Jules session
gules create "Fix the authentication bug" --source "sources/github/owner/repo"

# Watch progress
gules watch <session-id>

# Check status
gules session <session-id>

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📦 Project Structure

This workspace contains multiple crates for different use cases:

gules/
├── crates/
│   ├── jules-rs/        # Pure Jules API SDK (9 methods, 100% coverage)
│   ├── jules-core/      # Shared utilities (config, display)
│   ├── jules-cli/       # Basic CLI commands (9 pure SDK commands)
│   ├── jules-mcp/       # MCP server (9 SDK tools + 2 extended)
│   └── gules/           # Extended CLI (all features + conveniences)
└── tests/               # Integration tests

Architecture Principle

jules-rs   → Pure 1:1 SDK (10 API methods, independently publishable)
  ↓
jules-cli  → Pure SDK exposure (13 commands)
  ↓
jules-mcp  → Pure SDK MCP server (9 tools)
  ↓
gules      → Extended features (17 commands, or 11 MCP tools with extended-mcp)

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💻 CLI Usage

Core Commands (13 from jules-cli)

# Session Management
gules sessions [--state STATE] [--limit N]     # List sessions
gules session <SESSION_ID>                     # Get session details
gules active [--limit N]                       # List active sessions
gules completed [--limit N]                    # List completed sessions
gules failed [--limit N]                       # List failed sessions
gules create <PROMPT> --source <SOURCE>        # Create session
gules send-message <SESSION_ID> <MESSAGE>      # Send message
gules approve-plan <SESSION_ID>                # Approve plan

# Source Management
gules sources [--filter FILTER] [--limit N]    # List sources
gules source <SOURCE_ID>                       # Get source details

# Activity Management
gules activities <SESSION_ID> [--limit N]      # List activities
gules activity <SESSION_ID> <ACTIVITY_ID>      # Get activity details

# Configuration
gules config show                              # Show config
gules config init                              # Initialize config
gules config set <KEY> <VALUE>                 # Set config value
gules activity <SESSION_ID> <ACTIVITY_ID>      # Get activity

Extended Features

# Convenience Filters
gules active              # Show active sessions
gules completed           # Show completed sessions
gules failed              # Show failed sessions

# Monitoring
gules watch <SESSION_ID>  # Monitor session until complete
gules monitor             # Monitor all active sessions

# GitHub Integration (requires gh CLI)
gules issue-status <ISSUE> --owner <OWNER> --repo <REPO>
gules pr-status <SESSION_ID>

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🔌 MCP Server Mode

Run gules as an MCP server for AI assistants like Claude Desktop or VS Code Copilot:

gules --mcp

Available MCP Tools (11 total)

Pure SDK Tools (9):

• create_session - Create new Jules session
• get_session - Get session details
• list_sessions - List all sessions
• send_message - Send message to session
• approve_plan - Approve session plan
• list_sources - List available sources
• get_source - Get source details
• list_activities - List session activities
• get_activity - Get activity details

Extended Tools (2):

• watch_session - Monitor session until completion
• issue_status - Check GitHub issue status

Claude Desktop Configuration

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "gules": {
      "command": "/path/to/gules",
      "args": ["--mcp"],
      "env": {
        "JULES_API_KEY": "your-api-key-here"
      }
    }
  }
}

See docs/MCP.md for complete MCP setup guide.

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�� SDK Usage (jules-rs)

Use jules-rs in your Rust projects:

use jules_rs::JulesClient;

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    // Create client
    let client = JulesClient::new("your-api-key");
    
    // List sessions
    let response = client.list_sessions(Some(10), None).await?;
    println!("Found {} sessions", response.sessions.len());
    
    // Get session details
    let session = client.get_session("session-id").await?;
    println!("Session state: {:?}", session.state);
    
    // Create new session
    let request = CreateSessionRequest {
        prompt: "Fix authentication bug".to_string(),
        source_context: SourceContext {
            source: "sources/github/owner/repo".to_string(),
            github_repo_context: Some(GitHubRepoContext {
                starting_branch: "main".to_string(),
            }),
        },
        title: Some("Fix auth bug".to_string()),
        require_plan_approval: None,
        automation_mode: None,
    };
    let session = client.create_session(request).await?;
    
    Ok(())
}

SDK Features:

• ✅ 100% Jules API coverage (9 methods)
• ✅ Pure 1:1 API mapping
• ✅ Type-safe with full Rust types
• ✅ Async/await with tokio
• ✅ Comprehensive error handling
• ✅ Independently publishable

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📊 Coverage Status

Component	SDK Coverage	Status
jules-rs (SDK)	9/9 (100%)	✅ Complete
jules-cli	9/9 (100%)	✅ Complete
jules-mcp	9/9 (100%)	✅ Complete
gules (Extended)	9/9 + extras	✅ Complete

All layers implement 100% pure 1:1 SDK mapping!

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🛠️ Development

Building from Source

# Clone repository
git clone https://github.com/kiwina/gules
cd gules

# Build all crates
cargo build --workspace

# Run tests
cargo test --all

# Build release
cargo build --release

Running Tests

# Run all tests
cargo test --all

# Run specific crate tests
cargo test --package jules-rs
cargo test --package jules-cli
cargo test --package jules-mcp

# Run with verbose output
cargo test --all -- --nocapture

Project Statistics

• Total Tests: 42 passing
• Compilation: Clean (0 errors, 0 warnings)
• Code Coverage: 100% SDK API coverage
• Status: Production ready ✅

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📚 Documentation

Main Documentation

• README.md - This file (project overview)
• CHANGELOG.md - Version history and changes
• AGENTS.md - AI agent development guide

Command & Integration Guides

• docs/COMMANDS.md - Complete command reference
• docs/MCP.md - MCP integration guide
• docs/CI.md - CI/CD guide

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🤝 Contributing

Contributions welcome! Please:

1. Read the architecture principle (SDK = pure, CLI/MCP = pure exposure, gules = conveniences)
2. Ensure all tests pass: cargo test --all
3. Follow existing code patterns
4. Update documentation for new features

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📜 License

Licensed under the MIT License. See LICENSE for details.

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🔗 Links

• Jules AI: jules.google.com
• MCP Specification: modelcontextprotocol.io
• Repository: github.com/kiwina/gules
• Issues: github.com/kiwina/gules/issues

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Built with 💎 Rust • Powered by Jules AI • Compatible with MCP

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Version: 0.2.1
Status: Production Ready ✅
Last Updated: October 23, 2025