PraisonAI

┌─────────────────────────────────────────────────────────────────┐
│ ⬡ MANAGED AGENTS — Where does it actually run?                  │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ 5 · GRAPH — Who runs when, and who checks whom?             │ │
│ │ ┌─────────────────────────────────────────────────────────┐ │ │
│ │ │ 4 · LOOP — When do we stop?                             │ │ │
│ │ │ ┌─────────────────────────────────────────────────────┐ │ │ │
│ │ │ │ 3 · HARNESS — Can it act, and be checked?           │ │ │ │
│ │ │ │ ┌─────────────────────────────────────────────────┐ │ │ │ │
│ │ │ │ │ 2 · CONTEXT — Is the right thing in the window? │ │ │ │ │
│ │ │ │ │ ┌─────────────────────────────────────────────┐ │ │ │ │ │
│ │ │ │ │ │ 1 · PROMPT — Did I say it clearly?          │ │ │ │ │ │
│ │ │ │ │ └─────────────────────────────────────────────┘ │ │ │ │ │
│ │ │ │ └─────────────────────────────────────────────────┘ │ │ │ │
│ │ │ └─────────────────────────────────────────────────────┘ │ │ │
│ │ └─────────────────────────────────────────────────────────┘ │ │
│ └─────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘

Layer 1 · Prompt — Did I say it clearly?

from praisonaiagents import Agent

agent = Agent(
    role="Senior Data Analyst",
    goal="Turn raw numbers into decisions",
    output="verbose",              # markdown-formatted output
)
agent.start("Summarise Q3 revenue trends")

Layer 2 · Context — Is the right thing in the window?

from praisonaiagents import Agent

agent = Agent(
    instructions="You are a support engineer.",
    memory={"user_id": "u-42"},    # write    — persists across runs (needs a user_id)
    knowledge=["docs/"],           # select   — retrieves only what's relevant
    context="summarize",           # compress — auto-compacts before the limit
)

Layer 3 · Harness — Can it act, and be checked?

from praisonaiagents import Agent, MCP, tool

@tool
def deploy(env: str) -> str:
    """Deploy the current build to an environment."""
    return f"Deployed to {env}"

agent = Agent(
    name="ReleaseEngineer",
    instructions="You are a release engineer.",
    tools=[deploy, MCP("npx -y @modelcontextprotocol/server-filesystem /tmp")],
    approval=True,                 # guide — human gate before risky tools run
)
agent.start("Deploy to staging, then list the files you can read")

Layer 4 · Loop — When do we stop?

from praisonaiagents import Agent, ExecutionConfig

agent = Agent(
    instructions="Fix the failing tests.",
    execution=ExecutionConfig(max_iter=30, max_budget=0.50, on_budget_exceeded="stop"),
    autonomy=True,                 # required to drive the loop with run_autonomous()
)
result = agent.run_autonomous("Refactor the auth module", max_iterations=5)

print(result.completion_reason)
# goal | no_tool_calls | max_iterations | timeout | doom_loop | needs_help | error
# (with on_budget_exceeded="stop", hitting the cap raises BudgetExceededError,
#  surfaced here as completion_reason="error")

Layer 5 · Graph — Who runs when, and who checks whom?

from praisonaiagents import AgentFlow
from praisonaiagents.workflows import route, parallel, repeat

flow = AgentFlow(steps=[
    classifier,
    route({"bug": [bug_agent], "feature": [feature_agent], "default": [triage]}),
    parallel([reviewer, tester]),                      # fan out, join automatically
    repeat(editor, until=lambda ctx: "approved" in ctx.previous_result.lower(),
           max_iterations=3),                          # evaluator–optimizer
])
flow.run("Ticket #123: login fails on Safari")

⬡ Outside the stack: Managed Agents — Where does it actually run?

pip install praisonai

from praisonaiagents import Agent, AgentFlow

writer = Agent(name="Writer", instructions="You write files.")
reader = Agent(name="Reader", instructions="You read files.")

flow = AgentFlow(tools_run_on="docker", steps=[writer, reader])  # or e2b | modal | daytona | flyio
flow.run("Write 'hello' to /workspace/note.txt, then read it back")

name: remote-demo
tools_run_on: docker      # every step shares one sandbox
agents:
  writer: {role: Writer, goal: Write files}
  reader: {role: Reader, goal: Read files}
steps:
  - agent: writer
    action: "Write 'hello' to /workspace/note.txt"
  - agent: reader
    action: "Read /workspace/note.txt"

from praisonaiagents import Agent

# A. Only the TOOLS move. Thinking stays on your machine.
agent = Agent(name="builder", instructions="You build things.",
              tools_run_on="docker")   # docker | e2b | modal | daytona | flyio
                                       # tenki | sandlock | ssh | novita | subprocess

# B. The WHOLE agent moves — model calls, loop and tools
agent = Agent(name="teacher", instructions="You teach.", run_on="anthropic")  # hosted
agent = Agent(name="builder", instructions="You build.", run_on="docker")     # self-hosted
agent.start("Write a Python script that prints the first 10 primes, then run it")

>>> Agent(name="builder", instructions="x", tools_run_on="docker")
Agent(name='builder', thinks_on='this machine', tools_run_on='a Docker container')

>>> agent.where_does_it_run()
Thinking (the AI model calls) happens on this machine.
Tools run on a Docker container.
Your own tools (check_db) still run on this machine -- only shell, file and
code tools move. They read and write this machine's files.

>>> Agent(name="x", instructions="i", run_on="e2b")
TypeError: Agent(run_on='e2b') is not valid: run_on= places the whole agent
-- model calls, loop and tools -- on a managed runtime, and 'e2b' runs
commands but cannot host an agent loop.
  To run only the tools there:  Agent(tools_run_on='e2b')

agent.execute_code_sync("print(6 * 7)", run_in="sandlock")   # kernel-enforced

praisonai managed ps          # list running sandboxes
praisonai managed stop --all  # reclaim them

1. Single Agent

from praisonaiagents import Agent
agent = Agent(instructions="You are a helpful AI assistant")
agent.start("Write a movie script about a robot in Mars")

2. Multi Agents

from praisonaiagents import Agent, Agents

research_agent = Agent(instructions="Research about AI")
summarise_agent = Agent(instructions="Summarise research agent's findings")
agents = Agents(agents=[research_agent, summarise_agent])
agents.start()

3. MCP (Model Context Protocol)

from praisonaiagents import Agent, MCP

# stdio - Local NPX/Python servers
agent = Agent(tools=MCP("npx @modelcontextprotocol/server-memory"))

# Streamable HTTP - Production servers
agent = Agent(tools=MCP("https://api.example.com/mcp"))

# WebSocket - Real-time bidirectional
agent = Agent(tools=MCP("wss://api.example.com/mcp", auth_token="token"))

# With environment variables
agent = Agent(
    tools=MCP(
        command="npx",
        args=["-y", "@modelcontextprotocol/server-brave-search"],
        env={"BRAVE_API_KEY": "your-key"}
    )
)

4. Custom Tools

from praisonaiagents import Agent, tool

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

@tool
def calculate(expression: str) -> float:
    """Safely evaluate a numeric arithmetic expression."""
    import ast
    import operator
    
    # Define allowed operations
    _OPS = {
        ast.Add: operator.add,
        ast.Sub: operator.sub,
        ast.Mult: operator.mul,
        ast.Div: operator.truediv,
        ast.Pow: operator.pow,
        ast.USub: operator.neg,
        ast.UAdd: operator.pos,
    }
    
    def _safe_eval(node):
        if isinstance(node, ast.Constant) and isinstance(node.value, (int, float)):
            return node.value
        elif isinstance(node, ast.BinOp) and type(node.op) in _OPS:
            return _OPS[type(node.op)](_safe_eval(node.left), _safe_eval(node.right))
        elif isinstance(node, ast.UnaryOp) and type(node.op) in _OPS:
            return _OPS[type(node.op)](_safe_eval(node.operand))
        else:
            raise ValueError("Unsupported expression")
    
    try:
        return _safe_eval(ast.parse(expression, mode="eval").body)
    except (ValueError, SyntaxError, TypeError, ZeroDivisionError, OverflowError):
        raise ValueError("Invalid arithmetic expression")

agent = Agent(
    instructions="You are a helpful assistant",
    tools=[search, calculate]
)
agent.start("Search for AI news and calculate 15*4")

5. Persistence (Databases)

from praisonaiagents import Agent, db

agent = Agent(
    name="Assistant",
    memory={
        "db": db(database_url="postgresql://localhost/mydb"),
        "session_id": "my-session",
    },
)
agent.chat("Hello!")  # Auto-persists messages, runs, traces

6. PraisonAI Claw 🦞 (Dashboard UI)

pip install "praisonai[claw]"
praisonai claw

Required Environment Variables

7. Langflow Integration 🔗 (Visual Flow Builder)

pip install "praisonai[flow]"
praisonai flow

8. PraisonAI UI 🤖 (Clean Chat)

pip install "praisonai[ui]"
praisonai ui

Example 1: Two Agents Working Together

framework: praisonai
topic: "Write a blog post about AI"

agents:
  researcher:
    role: Research Analyst
    goal: Research AI trends and gather information
    instructions: "Find accurate information about AI trends"
    
  writer:
    role: Content Writer
    goal: Write engaging blog posts
    instructions: "Write clear, engaging content based on research"

praisonai agents.yaml

Example 2: Agent with Custom Tool

framework: praisonai
topic: "Calculate the sum of 25 and 15"

agents:
  calculator_agent:
    role: Calculator
    goal: Perform calculations
    instructions: "Use the add_numbers tool to help with calculations"
    tools:
      - add_numbers

def add_numbers(a: float, b: float) -> float:
    """
    Add two numbers together.
    
    Args:
        a: First number
        b: Second number
    
    Returns:
        The sum of a and b
    """
    return a + b

praisonai agents.yaml