# A Contractualist Argumentation Framework for Moral Decision-Making

arXiv: https://arxiv.org/abs/2608.01937 · HTML: https://mlsanity.com/paper/2608.01937/

## Key facts

- No citing papers in the map yet (data through 14 Oct 2026).
- Builds on 3 of its 22 references that are in the map.
- First posted on arXiv 3 Aug 2026.

## Builds on (most cited first, 3 of 3)

- [Resource Rational Contractualism Should Guide AI Alignment](https://mlsanity.com/paper/2506.17434/) (2025)
- [Concerns and Values in Human-Robot Interactions: A Focus on Social Robotics](https://mlsanity.com/paper/2501.05628/) (2025)
- [Multimodal Large Language Models for Real-Time Situated Reasoning](https://mlsanity.com/paper/2602.01880/) (2026)

## Abstract (arXiv)

Autonomous agents operating in shared environments must make decisions that affect multiple individuals with potentially conflicting interests. We propose a formal framework for moral decision-making grounded in Scanlon's contractualism, an ethical theory that evaluates the permissibility of actions in terms of principles that no one could reasonably reject. To operationalise contractualist reasoning, we use ASPIC+, a structured argumentation framework, extended with value-based filtering to model how each agent's values determine which reasons are morally relevant in the first place. The result is a Contractualist Argumentation Framework in which agents' reasons are formally represented, compared, and evaluated through argumentation semantics. We illustrate the approach through a worked example in a domestic setting and discuss its relation to existing value-based argumentation approaches.