OpenSymphony

Let your agents have character, follow rules, and grow.

An open-source AI agent framework with soul, governance, and self-evolution. Designed to run on consumer hardware.

Why OpenSymphony?

Most agent frameworks focus on orchestration — chaining API calls. OpenSymphony focuses on who your agents are and how they behave:

• 🎭 Soul — Define agent personalities as YAML. Not prompts — persistent behavioral frameworks.
• ⚖️ Governance — Voting, precedent, defense. Agents make collective decisions, not chaos.
• 🔧 Self-evolution — Agents build their own tools at runtime.

Architecture

Request → Gateway → [Intent Bridge] → [Governance] → Runtime → Kernel → Response
                                              ↑
                                    Voting / Precedent / Defense

Onion model: every request passes through governance layers before execution.

┌─────────────────────────────────────────────────┐
│  Gateway (HTTP / WebSocket / CLI)                │
│    └─ HumanAdapter — Intent Bridge (NL→struct)   │
├─────────────────────────────────────────────────┤
│  Governance                                      │
│    ├─ VotingMechanism — multi-agent decisions     │
│    ├─ PrecedentStore — reusable past decisions    │
│    ├─ DefenseLayer — risk assessment              │
│    └─ HITLManager — human-in-the-loop             │
├─────────────────────────────────────────────────┤
│  Runtime                                         │
│    ├─ AgentPool — concurrent agent management     │
│    ├─ TaskScheduler — priority queue              │
│    └─ AgentSandbox — resource limits              │
├─────────────────────────────────────────────────┤
│  Kernel                                          │
│    ├─ Soul Compiler — YAML → behavioral rules     │
│    ├─ LLM Router — cloud + local providers        │
│    ├─ Memory (L1/L2/L3) — three-tier storage      │
│    └─ Tool Workshop — agents create tools         │
└─────────────────────────────────────────────────┘

Quick Start

# Install
pip install opensymphony

# Or from source
git clone https://github.com/lawcontinue/opensymphony.git
cd opensymphony
pip install -e ".[dev]"

# Run tests (377 passing)
pytest

# Start the API server
python -m opensymphony.gateway.http

Example: Define a Soul

# souls/my_agent.yaml
id: my_agent
name: MyAgent
archetype: Code Reviewer

thinking_framework: |
  You are a code reviewer focused on security and correctness.
  Rules:
  1. Flag any unvalidated user input
  2. Check for race conditions in concurrent code
  3. Prefer readability over cleverness

values:
  - Security first
  - Evidence-based review
  - Constructive feedback

Example: Use the API

from opensymphony.agents.soul import Soul
from opensymphony.agents.soul_compiler import compile_soul
from opensymphony.kernel import SymphonyKernel

# Load a soul
soul = Soul.from_yaml("souls/my_agent.yaml")
prompt = compile_soul(soul, output_mode="agent")

# Create kernel with governance
kernel = SymphonyKernel()
kernel.load_souls("souls/")

# Chat with an agent
response = kernel.chat("my_agent", "Review this function for security issues...")
print(response)

Core Concepts

🎭 Soul System

Agents are defined by YAML soul files with identity, thinking framework, values, and veto conditions. Souls compile into behavioral constraints that persist across conversations.

13 built-in souls: themis, athena, crit, shield, code, novelist, screenwriter, tech_blogger, legal_writer, social_copy, drama_director, reflector, default.

⚖️ Governance Layer

🔧 Tool Workshop

Agents can create, test, and deploy their own Python tools at runtime — no human intervention needed.

💾 Three-Tier Memory

Requirements

• Python 3.11+
• Optional: 16GB+ RAM for local LLM inference
• Optional: NVIDIA GPU for local models

Project Structure

opensymphony/
├── agents/            # Agent core + Soul compiler
├── apps/              # Application modules (novel pipeline, content factory)
├── gateway/           # HTTP + WebSocket + Human adapters
├── governance/        # Voting, precedent, defense, HITL
├── kernel.py          # Core orchestration
├── llm/               # LLM router (cloud + local)
├── memory/            # Three-tier memory (L1/L2/L3)
├── pipeline.py        # Declarative pipeline engine
├── runtime/           # Agent pool + scheduler + sandbox
├── session.py         # Session management
├── skill_registry.py  # Dynamic skill loading
├── telemetry.py       # Observability
└── tools/             # Production tools + workshop

License

MIT