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171 changes: 159 additions & 12 deletions README.md
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@@ -1,43 +1,190 @@
# Mars
# MARS (Multi-Agent Ruby SDK)

TODO: Delete this and the text below, and describe your gem
[![Gem Version](https://badge.fury.io/rb/mars_rb.svg)](https://badge.fury.io/rb/mars_rb)
[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/mars`. To experiment with that code, run `bin/console` for an interactive prompt.
MARS (Multi-Agent Ruby SDK) provides a comprehensive framework for developers to implement multi-agent solutions using pure Ruby. It offers a simple, intuitive API for orchestrating multiple agents with support for sequential and parallel workflows, conditional branching, and visual workflow diagrams.

## Features

- 🤖 **Agent Orchestration**: Coordinate multiple agents with ease
- 🔄 **Sequential Workflows**: Chain agents to execute tasks in order
- ⚡ **Parallel Workflows**: Run multiple agents concurrently
- 🚦 **Conditional Gates**: Branch workflows based on runtime conditions
- 🔧 **Aggregators**: Combine results from parallel operations
- 📊 **Visual Diagrams**: Generate Mermaid diagrams of your workflows
- 🔌 **LLM Integration**: Built-in support for LLM agents via [ruby_llm](https://github.com/gbaptista/ruby_llm)
- 🛠️ **Tools & Schemas**: Define custom tools and structured outputs for agents

## Requirements

- Ruby >= 3.1.0

## Installation

TODO: Replace `UPDATE_WITH_YOUR_GEM_NAME_IMMEDIATELY_AFTER_RELEASE_TO_RUBYGEMS_ORG` with your gem name right after releasing it to RubyGems.org. Please do not do it earlier due to security reasons. Alternatively, replace this section with instructions to install your gem from git if you don't plan to release to RubyGems.org.
Add this line to your application's Gemfile:

Install the gem and add to the application's Gemfile by executing:
```ruby
gem 'mars_rb'
```

And then execute:

```bash
bundle add UPDATE_WITH_YOUR_GEM_NAME_IMMEDIATELY_AFTER_RELEASE_TO_RUBYGEMS_ORG
bundle install
```

If bundler is not being used to manage dependencies, install the gem by executing:
Or install it yourself as:

```bash
gem install UPDATE_WITH_YOUR_GEM_NAME_IMMEDIATELY_AFTER_RELEASE_TO_RUBYGEMS_ORG
gem install mars_rb
```

## Quick Start

Here's a simple example to get you started:

```ruby
require 'mars'

# Create agents
agent1 = Mars::Agent.new(name: "Agent 1")
agent2 = Mars::Agent.new(name: "Agent 2")
agent3 = Mars::Agent.new(name: "Agent 3")

# Create a sequential workflow
workflow = Mars::Workflows::Sequential.new(
"My First Workflow",
steps: [agent1, agent2, agent3]
)

# Run the workflow
result = workflow.run("Your input here")
```

## Core Concepts

### Agents

Agents are the basic building blocks of MARS. They represent individual units of work:

```ruby
agent = Mars::Agent.new(
name: "My Agent",
instructions: "You are a helpful assistant",
options: { model: "gpt-4o" }
)
```

### Sequential Workflows

Execute agents one after another, passing outputs as inputs:

```ruby
sequential = Mars::Workflows::Sequential.new(
"Sequential Pipeline",
steps: [agent1, agent2, agent3]
)
```

### Parallel Workflows

Run multiple agents concurrently and aggregate their results:

```ruby
aggregator = Mars::Aggregator.new(
"Results Aggregator",
operation: lambda { |results| results.join(", ") }
)

parallel = Mars::Workflows::Parallel.new(
"Parallel Pipeline",
steps: [agent1, agent2, agent3],
aggregator: aggregator
)
```

## Usage
### Gates

TODO: Write usage instructions here
Create conditional branching in your workflows:

```ruby
gate = Mars::Gate.new(
name: "Decision Gate",
condition: ->(input) { input[:score] > 0.5 ? :success : :failure },
branches: {
success: success_workflow,
failure: failure_workflow
}
)
```

### Visualization

Generate Mermaid diagrams to visualize your workflows:

```ruby
diagram = Mars::Rendering::Mermaid.new(workflow).render
File.write("workflow_diagram.md", diagram)
```

## Examples

Check out the [examples](examples/) directory for more detailed examples:

- [Simple Workflow](examples/simple_workflow/) - Basic sequential workflow with gates
- [Parallel Workflow](examples/parallel_workflow/) - Concurrent agent execution
- [Complex Workflow](examples/complex_workflow/) - Nested workflows with multiple gates
- [Complex LLM Workflow](examples/complex_llm_workflow/) - Real-world LLM integration with tools and schemas

## Development

After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and the created tag, and push the `.gem` file to [rubygems.org](https://rubygems.org).

## Testing

Run the test suite with:

```bash
bundle exec rake spec
```

## Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/mars. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/[USERNAME]/mars/blob/main/CODE_OF_CONDUCT.md).
Bug reports and pull requests are welcome on GitHub at https://github.com/rootstrap/mars. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/rootstrap/mars/blob/main/CODE_OF_CONDUCT.md).

To contribute:

1. Fork the repository
2. Create your feature branch (`git checkout -b feature/amazing-feature`)
3. Commit your changes (`git commit -am 'Add some amazing feature'`)
4. Push to the branch (`git push origin feature/amazing-feature`)
5. Open a Pull Request

Please make sure to:
- Write tests for new features
- Update documentation as needed
- Follow the existing code style
- Ensure all tests pass before submitting

## License

The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

## Support

- 🐛 [Issue Tracker](https://github.com/rootstrap/mars/issues)

## Related Projects

- [ruby_llm](https://github.com/gbaptista/ruby_llm) - Ruby interface for LLM providers

## Code of Conduct

Everyone interacting in the Mars project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/[USERNAME]/mars/blob/main/CODE_OF_CONDUCT.md).
Everyone interacting in the Mars project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/rootstrap/mars/blob/main/CODE_OF_CONDUCT.md).

## Credits

Created and maintained by [Rootstrap](https://www.rootstrap.com).
21 changes: 21 additions & 0 deletions examples/complex_llm_workflow/diagram.md
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@@ -0,0 +1,21 @@
```mermaid
flowchart LR
in((In))
out((Out))
llm_1[LLM 1]
gate{Gate}
parallel_workflow_aggregator[Parallel workflow Aggregator]
llm_2[LLM 2]
llm_3[LLM 3]
llm_4[LLM 4]
in --> llm_1
llm_1 --> gate
gate -->|success| llm_2
gate -->|success| llm_3
gate -->|success| llm_4
gate -->|default| out
llm_2 --> parallel_workflow_aggregator
parallel_workflow_aggregator --> out
llm_3 --> parallel_workflow_aggregator
llm_4 --> parallel_workflow_aggregator
```
53 changes: 49 additions & 4 deletions examples/complex_llm_workflow/generator.rb
Original file line number Diff line number Diff line change
Expand Up @@ -7,23 +7,62 @@
config.openai_api_key = ENV.fetch("OPENAI_API_KEY", nil)
end

# Define schema for sports
class SportsSchema < RubyLLM::Schema
array :sports do
object do
string :name
array :top_3_players do
string :name
end
end
end
end

sports_schema = SportsSchema.new

# Define weather tool
class Weather < RubyLLM::Tool
description "Gets current weather for a location"

params do
string :latitude, description: "Latitude (e.g., 52.5200)"
string :longitude, description: "Longitude (e.g., 13.4050)"
end

def execute(latitude:, longitude:)
url = "https://api.open-meteo.com/v1/forecast?latitude=#{latitude}&longitude=#{longitude}&current=temperature_2m,wind_speed_10m"
response = Net::HTTP.get_response(URI(url))
JSON.parse(response.body)
rescue StandardError => e
{ error: e.message }
end
end

weather_tool = Weather.new

# Create the LLMs
llm1 = Mars::Agent.new(
name: "LLM 1", options: { model: "gpt-4o" },
instructions: "You are a helpful assistant that can answer questions and help with tasks. Only answer with the result"
instructions: "You are a helpful assistant that can answer questions.
When asked about a country, only answer with its name."
)

llm2 = Mars::Agent.new(name: "LLM 2", options: { model: "gpt-4o" },
instructions: "You are a helpful assistant that can answer questions and help with tasks.
Return information about the typical food of the country.")

llm3 = Mars::Agent.new(name: "LLM 3", options: { model: "gpt-4o" },
llm3 = Mars::Agent.new(name: "LLM 3", options: { model: "gpt-4o" }, schema: sports_schema,
instructions: "You are a helpful assistant that can answer questions and help with tasks.
Return information about the popular sports of the country.")

llm4 = Mars::Agent.new(name: "LLM 4", options: { model: "gpt-4o" }, tools: [weather_tool],
instructions: "You are a helpful assistant that can answer questions and help with tasks.
Return the current weather of the country's capital.")

parallel_workflow = Mars::Workflows::Parallel.new(
"Parallel workflow",
steps: [llm2, llm3]
steps: [llm2, llm3, llm4]
)

gate = Mars::Gate.new(
Expand All @@ -39,4 +78,10 @@
steps: [llm1, gate]
)

puts sequential_workflow.run("Which is the last country to declare independence?")
# Generate and save the diagram
diagram = Mars::Rendering::Mermaid.new(sequential_workflow).render
File.write("examples/complex_llm_workflow/diagram.md", diagram)
puts "Complex workflow diagram saved to: examples/complex_llm_workflow/diagram.md"

# Run the workflow
puts sequential_workflow.run("Which is the largest country in South America?")
1 change: 1 addition & 0 deletions lib/mars.rb
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
require "zeitwerk"
require "async"
require "ruby_llm"
require "ruby_llm/schema"

loader = Zeitwerk::Loader.for_gem
loader.setup
Expand Down
2 changes: 1 addition & 1 deletion mars.gemspec
Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,7 @@ Gem::Specification.new do |spec|

# Uncomment to register a new dependency of your gem
spec.add_dependency "async", "~> 2.34"
spec.add_dependency "ruby_llm", "~> 1.0"
spec.add_dependency "ruby_llm", "~> 1.9"
spec.add_dependency "zeitwerk", "~> 2.7"

# For more information and examples about making a new gem, check out our
Expand Down
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