yaaaf 0.1.8

YAAAF (Yet Another Autonomous Agents Framework) - A modular framework for building intelligent agentic applications with Python backend and Next.js frontend

YAAAF - Yet Another Autonomous Agents Framework

YAAAF is an artifact-first framework for building intelligent agentic applications.

The Core Philosophy

YAAAF is not about agents. It is about artifacts.

In YAAAF, you do not route queries to agents. Instead, the system builds a railway - a planned pipeline that moves artifacts from sources to their final destination. Agents are merely the stations along this railway, transforming artifacts as they pass through.

[Source] -----> [Station A] -----> [Station B] -----> [Destination]
   |                |                   |                   |
Database        SqlAgent          VisualizationAgent      Image
   |                |                   |                   |
   +--- artifact -->+--- artifact ----->+--- artifact -----+
        (query)          (table)             (chart)

This is artifact-first design: the artifact is the primary citizen, not the agent.

How It Works

Unlike traditional agent systems that route queries to individual agents, YAAAF takes a fundamentally different approach:

1. Goal Analysis: The system extracts the user's goal and determines the required output type
2. Workflow Planning: A planner creates a DAG (directed acyclic graph) defining how artifacts should flow
3. Artifact Flow: Data moves through the planned pipeline - extracted, transformed, and finally output
4. Validation: Each artifact is validated against the user's goal; failed validations trigger automatic replanning

User Query
    |
    v
+-------------------+
|  Goal Extraction  |  "What does the user want?"
+-------------------+
    |
    v
+-------------------+
|  Plan Generation  |  Creates YAML workflow with artifact dependencies
+-------------------+
    |
    v
+-------------------+
|  Workflow Engine  |  Executes DAG, flowing artifacts between agents
+-------------------+
    |
    v
+-------------------+
|    Validation     |  Checks each artifact against goal (replan if needed)
+-------------------+
    |
    v
  Result

Agent Taxonomy

Agents are classified by their role in the artifact flow:

Role	Description
EXTRACTOR	Pulls data from external sources (databases, APIs, documents)
TRANSFORMER	Converts artifacts from one form to another
SYNTHESIZER	Combines multiple artifacts into unified outputs
GENERATOR	Creates final outputs (visualizations, files, effects)

Available Agents

Agent	Role	Description
SqlAgent	EXTRACTOR	Executes SQL queries against configured databases
DocumentRetrieverAgent	EXTRACTOR	Retrieves relevant text from document collections
BraveSearchAgent	EXTRACTOR	Searches the web via Brave Search API
DuckDuckGoSearchAgent	EXTRACTOR	Searches the web via DuckDuckGo
UrlAgent	EXTRACTOR	Fetches and extracts content from URLs
UserInputAgent	EXTRACTOR	Collects information from users interactively
MleAgent	TRANSFORMER	Trains machine learning models on tabular data
ReviewerAgent	TRANSFORMER	Analyzes and validates artifacts
ToolAgent	TRANSFORMER	Executes external tools via MCP protocol
NumericalSequencesAgent	TRANSFORMER	Structures unformatted data into tables
AnswererAgent	SYNTHESIZER	Combines artifacts into comprehensive answers
UrlReviewerAgent	SYNTHESIZER	Aggregates and summarizes URL content
VisualizationAgent	GENERATOR	Creates charts and visualizations from data
BashAgent	GENERATOR	Performs filesystem operations
PlannerAgent	SYNTHESIZER	Creates execution workflows from goals
ValidationAgent	TRANSFORMER	Validates artifacts against user goals, triggers replanning

How Planning Works

When a query arrives, the planner generates a YAML workflow defining the artifact flow:

assets:
  sales_data:
    agent: SqlAgent
    description: "Extract quarterly sales figures"
    type: table

  sales_chart:
    agent: VisualizationAgent
    description: "Create bar chart of sales by quarter"
    type: image
    inputs: [sales_data]

The planner uses RAG-based example retrieval to find similar scenarios from a dataset of 50,000+ planning examples, ensuring high-quality workflow generation.

Quick Start

Installation

git clone <repository-url>
cd agents_framework
pip install -e .

# Frontend (optional)
cd frontend && pnpm install

Running

# Backend (default port 4000)
python -m yaaaf backend

# Frontend (default port 3000)
python -m yaaaf frontend

# Custom ports
python -m yaaaf backend 8080
python -m yaaaf frontend 3001

Requirements

• Python 3.11+
• Ollama running locally (default: http://localhost:11434)
• A compatible model (e.g., ollama pull qwen2.5:32b)

Configuration

Set YAAAF_CONFIG environment variable to point to your configuration file:

{
  "client": {
    "model": "qwen2.5:32b",
    "temperature": 0.7,
    "host": "http://localhost:11434"
  },
  "agents": [
    "sql",
    "visualization",
    "websearch",
    "document_retriever",
    "answerer",
    "reviewer"
  ],
  "sources": [
    {
      "name": "my_database",
      "type": "sqlite",
      "path": "./data/database.db"
    }
  ]
}

Agent-Specific Configuration

Override model settings per agent:

{
  "agents": [
    "sql",
    {
      "name": "visualization",
      "model": "qwen2.5-coder:32b",
      "temperature": 0.1
    }
  ]
}

MCP Tool Integration

Add external tools via Model Context Protocol:

{
  "tools": [
    {
      "name": "math_server",
      "type": "sse",
      "url": "http://localhost:8080/sse"
    },
    {
      "name": "file_tools",
      "type": "stdio",
      "command": "python",
      "args": ["-m", "my_mcp_server"]
    }
  ]
}

Architecture

Frontend (Next.js)  <--HTTP-->  Backend (FastAPI)
                                      |
                                      v
                              +---------------+
                              | Orchestrator  |
                              +---------------+
                                      |
                         +------------+------------+
                         |                         |
                         v                         v
                  +------------+           +----------------+
                  |  Planner   |           | Workflow Engine|
                  +------------+           +----------------+
                         |                         |
                         v                         v
                  YAML Workflow  ------>   Agent Execution
                                           (artifact flow)

Key Components

• Orchestrator: Entry point that coordinates goal extraction and workflow execution
• Planner: Generates YAML workflows using RAG-retrieved examples
• Workflow Engine: Executes the DAG, managing artifact dependencies
• Validation: Inspects each artifact and triggers replanning if it doesn't match the goal
• Artifact Storage: Centralized store for generated artifacts (tables, images, models)

Development

# Run tests
python -m unittest discover tests/

# Code formatting
ruff format .
ruff check .

# Frontend development
cd frontend && pnpm dev

Project Structure

yaaaf/
  components/
    agents/           # Agent implementations
    retrievers/       # RAG and search components
    executors/        # Workflow and tool executors
    sources/          # Data source connectors
  server/             # FastAPI backend
  data/               # Packaged datasets (planner examples)
frontend/             # Next.js application
tests/                # Unit tests

License

MIT License

Support

• Documentation: documentation/ folder
• Issues: GitHub Issues
• Discussions: GitHub Discussions