Definable

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What You Can Build

from definable.agent import Agent
from definable.tool.decorator import tool

@tool
def search_web(query: str) -> str:
    """Search the web for information."""
    return f"Results for: {query}"

agent = Agent(
    model="gpt-4o",
    tools=[search_web],
    instructions="You are a research assistant.",
)

result = agent.run("What are the latest developments in quantum computing?")
print(result.content)

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Start Building

• Your First Agent Build and run an agent with tools in under 20 lines of code.
• Agents The core execution loop: models, tools, and instructions.
• Teams Coordinate multiple agents to collaborate, route, or divide work.
• Workflows Orchestrate agents through sequential, parallel, conditional, and iterative steps.
• Models 10 providers, string shorthand, streaming, structured output, vision, and audio.
• Knowledge Full RAG pipeline: readers, chunkers, embedders, rerankers, vector databases.

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Built for Production

• Async-first with sync wrappers for every API.
• 10 LLM providers with automatic key rotation and failover.
• Token counting, cost tracking, and usage analytics.
• Input/output/tool guardrails and security hardening.
• Native tracing with JSONL and debug exporters.
• Full type annotations with py.typed marker for mypy consumers.