Metadata-Version: 2.4
Name: marona
Version: 2.1.0
Summary: Universal Model Gateway and MCP/Skill SDK with mandatory project-scoped Marona authentication.
Author: Blessing Nyuwani
License-Expression: MIT
Project-URL: Homepage, https://www.marona.ai
Project-URL: Documentation, https://platform.marona.ai/docs
Keywords: marona,sdk,mcp,agents,ai,runtime
Classifier: Development Status :: 3 - Alpha
Classifier: Intended Audience :: Developers
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Programming Language :: Python :: 3.13
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Requires-Python: >=3.10
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: httpx<1.0,>=0.28
Requires-Dist: pydantic<3.0,>=2.7
Requires-Dist: websockets<17,>=15
Provides-Extra: dev
Requires-Dist: pytest<9.0,>=8.0; extra == "dev"
Requires-Dist: build<2.0,>=1.2; extra == "dev"
Requires-Dist: twine<7.0,>=6.0; extra == "dev"
Dynamic: license-file

# Marona Python SDK

Run Agents through one managed API, with structured output, local tools,
Hub capabilities, streaming, realtime and A2A collaboration.

## Install

Version **2.1.0**. [Package registry](https://pypi.org/project/marona/2.1.0/).

Python 3.10+.

```bash
python -m pip install --upgrade marona==2.1.0
```

Set `MARONA_API_KEY` in your backend environment. Never commit it, log it,
or embed a developer key in browser or mobile code. Use an exact accessible
`marona/*` model alias from [Marona Platform](https://platform.marona.ai/).

## Agent quickstart

Save as `examples/agent_example.py`. Run without arguments for text, or with a real
PNG/JPEG path for document extraction. Use stable application user IDs and a
distinct session ID for each conversation.

```python
import asyncio
import base64
import os
import sys
from pathlib import Path

from marona import Agent, Marona, Runner


async def main():
    async with Marona(
        api_key=os.environ["MARONA_API_KEY"],
        base_url=os.getenv("MARONA_RUNTIME_URL", "https://edge.marona.ai"),
    ) as marona:
        agent = Agent(
            name="Document Assistant",
            model=os.getenv("MARONA_MODEL", "marona/qwen-qwen3.8-max-0902"),
            instructions="Answer clearly and concisely.",
            tool_choice="none",
        )
        user_input = "Reply with exactly OK."
        if len(sys.argv) > 1:
            path = Path(sys.argv[1])
            mime = {".png": "image/png", ".jpg": "image/jpeg", ".jpeg": "image/jpeg"}[path.suffix.lower()]
            data_url = f"data:{mime};base64," + base64.b64encode(path.read_bytes()).decode("ascii")
            user_input = [{"role": "user", "content": [
                {"type": "input_text", "text": "Describe this image and transcribe any visible text."},
                {"type": "input_image", "image_url": data_url},
            ]}]
        result = await Runner.run(
            agent, user_input, user_id="example-user", session_id="example-session"
        )
        print(result.output)


if __name__ == "__main__":
    asyncio.run(main())
```

```bash
python examples/agent_example.py
python examples/agent_example.py image.png
```

Encode actual file bytes with standard Base64. Image and file blocks accept
raw Base64 in `image_data` / `file_data`, or complete matching data URLs.
Do not encode a path, encode twice, or send placeholder data. Remote URLs must
be reachable by the runtime. PDF, audio and realtime support depend on the
selected model; render PDF pages to images when native PDF is unavailable.

## Structured output through Agent

The following fragment uses the authenticated client from the quickstart.
`document_input` is your text or document message input.

```python
from pydantic import BaseModel, ConfigDict
from marona import Agent, Runner

class Extraction(BaseModel):
    model_config = ConfigDict(extra="forbid")
    text: str

agent = Agent(
    name="Document Reader",
    model="marona/qwen-qwen3.8-max-0902",
    instructions="Extract the document text.",
    output_type=Extraction,
    output_schema_strict=True,
)
result = await Runner.run(agent, document_input, user_id="user-123")
print(result.output.text)
```

The explicit strict option asks the provider to enforce the supplied schema;
the SDK also validates the final result before returning it. Strict mode requires
a compatible model and schema. Declare every object property as required, use
nullable values for optional fields, and set additionalProperties to false.
Unsupported model capabilities or invalid output produce errors; they do not silently fall
back to unstructured text. Input schemas, function tool schemas, guardrails,
dynamic instructions and lifecycle hooks are also supported.

## Apps and user connections

```python
page = await marona.apps.list_async(user_id="user-123", limit=20)
action = await marona.apps.connect_async("calendar", user_id="user-123")
# Complete any returned authorization_url before calling protected tools.
await marona.apps.disconnect_async("calendar")
```

Listing an App does not authorize its protected operations. Follow the returned
connection action for the end user. Use `hub.connect` to expose a scoped set of
App or Skill capabilities to an Agent; Apps authorization and Hub tool discovery
are separate operations.

## A2A collaboration and serving

```python
import os
from marona import A2APeer, A2AServer, Agent

peer = A2APeer(name="reviewer", url="https://reviewer.example.com")
coordinator = Agent(name="Coordinator", peers=[peer])
server = A2AServer(
    agent=coordinator,
    url="https://coordinator.example.com",
    skills=[{"id": "review", "name": "Review", "description": "Review a document"}],
)
# Apply production authentication and TLS at your service boundary.
server.run(host="127.0.0.1", port=8100)
```

Peers support Agent Card discovery, REST/JSON-RPC messages, task retrieval,
cancellation, continuation and streamed task events. Servers persist task state.
Use explicit credentials, restricted skills, HTTPS, and an appropriate durable
task directory for production. Local JSON stores are for a single service
instance; multi-instance deployments require coordinated task storage.


Push notifications are not implemented.

## Brain2Agent (B2A)

Native B2A v0.1 exchanges decoded semantic intent and agent responses. The
independent neural service owns signal decoding and feedback encoding, with
vendor-hosted MCP, HTTP or local plugin backends. Models and device drivers
are supplied by the interface provider; examples use clearly labeled simulation.

Save as `examples/b2a_intent.py`:

```python
"""Send a simulated semantic intent through native B2A; no raw EEG is inferred.

Set MARONA_API_KEY and optionally MARONA_BASE_URL. A real application obtains
the human's explicit consent and replaces the fixture with its decoder output.
The separate neural service receives response events and encodes feedback.
"""

import asyncio
import json
import os

from marona import Agent, B2AMessage, Marona


async def main() -> None:
    async with Marona(base_url=os.getenv("MARONA_BASE_URL", "https://edge.marona.ai")) as client:
        agent = Agent(
            name="B2A Intent Agent",
            instructions="Interpret the supplied semantic intent in context and respond clearly.",
        )
        session = await client.b2a.open_session_async(
            user_id="example-human",
            device_id="example-neural-interface",
            consent={"granted": True, "scopes": ["intent", "feedback", "context"]},
            capabilities={"input": ["semantic.intent"], "output": ["application/json"]},
            agent=agent,
        )
        try:
            message = B2AMessage.intent(
                session["session_id"],
                session["next_sequence"],
                {
                    "goal": "Explain how an ecosystem maintains balance",
                    "context": {"perspective": "interdependence", "detail": "concise"},
                },
                decoder={"id": "example-fixture", "version": "1"},
                provenance={"simulated": True},
                context_revision=session["context_revision"],
            )
            # Preserve this envelope unchanged when retrying after transport loss.
            exchange = await client.b2a.send_message_async(session["session_id"], message)
            for event in exchange["events"]:
                if event["type"] == "agent.response":
                    # Pass this payload to the independently deployed encoder.
                    print(json.dumps(event["payload"], ensure_ascii=False, indent=2))
        finally:
            await client.b2a.close_session_async(session["session_id"])


if __name__ == "__main__":
    asyncio.run(main())
```

Keep the same message ID, sequence, timestamp and payload when retrying an
uncertain delivery. Read `session.next_sequence` for the next new message.
Inspect error events and explicit cancellation outcomes. Feedback presentation
is separate from human confirmation. B2A v0.1 uses HTTP JSON and retained cursor
events; it does not claim WebSocket streaming or direct neural-model inference.
See the repository's `docs/b2a-protocol.md` for the complete wire contract.

## Execution and errors

Use `Runner.stream` for streamed Agent events and
`RealtimeRunner` for a live session. Delegation and handoffs use explicit Agent
graphs. Set execution limits and validate permissions before tools with side
effects; cancellation cannot roll back an operation that has already executed.

Inspect the canonical error code, HTTP status, request ID and retry metadata.
Correct invalid input and authorization errors before retrying. Use bounded
retries for transient failures. Never include credentials or document content
in error reports.

See [Platform documentation](https://platform.marona.ai/docs) for language
specific examples and migration guidance. These files are generated from
`docs/client-sdk-guides.json`; verify them with
`python scripts/sync_client_sdk_docs.py --check`.
