[2607.20709] NVIDIA-labs OO Agents: Native Python Object-Oriented Agents

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arXiv:2607.20709 (cs)

[Submitted on 22 Jul 2026]

Title:NVIDIA-labs OO Agents: Native Python Object-Oriented Agents

Authors:Paul Furgale, Severin Klingler, James Nolan, Matt Staats, Gaia Di Lorenzo, Elisa Martinez Abad, Christian Schüller, Razvan Dinu, Alessio Devoto, Pascal Berard, Gal Kaplun, Elad Sarafian, Riccardo Roveri, Leon Derczynski, Ricardo Silveira Cabral<br>View a PDF of the paper titled NVIDIA-labs OO Agents: Native Python Object-Oriented Agents, by Paul Furgale and 14 other authors

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Abstract:Traditional agent development is split across prompt templates, tool schemas, callback code, and workflow graphs. We present NVIDIA Object-Oriented Agents (NOOA), a model-agnostic Python framework for building reliable AI agents. NOOA takes a simpler approach: an agent is a Python object. Its methods are the actions the model can take, fields are its state, docstrings are its prompts, and its type annotations are contracts. A method whose code body consists of "..." is completed at runtime by an LLM-driven agent loop, while methods with normal bodies remain standard deterministic Python. This gives developers and agents the same interface, so agent behavior can be tested, traced, refactored, and improved just like other software.

This paper makes three contributions. (1) We present the agent-as-a-Python-object programming model and the design principles behind it. Where Python has existing abstractions, we adopt them directly. Agent-specific capabilities--context, events, state rendering, long-term memory, and validated LLM loops--are exposed through simple Pythonic APIs, so both developers and agents share one familiar programming model. (2) We identify six model-facing ideas that NOOA is, to our knowledge, the first to combine on a single surface: typed input/output, pass-by-reference over live objects, code as action, programmable loop engineering, explicit object state, and model-callable harness APIs for context and events. We find the community already converging on several of these ideas--often as experimental or partial features--and present the comparison to encourage further adoption. (3) We demonstrate that current models use this interface effectively, both in targeted capability tests and on agentic and reasoning benchmarks such as SWE-bench Verified and Terminal-Bench 2.0 and ARC-AGI-3.

Subjects:

Artificial Intelligence (cs.AI); Computation and Language (cs.CL)

Cite as:<br>arXiv:2607.20709 [cs.AI]

(or<br>arXiv:2607.20709v1 [cs.AI] for this version)

https://doi.org/10.48550/arXiv.2607.20709

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arXiv-issued DOI via DataCite (pending registration)

Submission history<br>From: Alessio Devoto [view email]<br>[v1]<br>Wed, 22 Jul 2026 20:25:55 UTC (449 KB)

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