The Capabilities OS: How ACM Builds an All-in-One App like OpenAI
Last Updated on October 9, 2025 by Editorial Team
Author(s): Mahmudur R Manna
Originally published on Towards AI.
Agentic Contract Model v0.5 as the operating layer behind a unified chat interface
Open Link: The Capabilities OS
ACM v0.5 introduces a structured way of managing capabilities through an Agentic Contract Model, enabling platforms to effectively govern interactions in chat UIs. It focuses on binding plan execution with policy gates, ensuring tasks adhere to predefined constraints and governance checks. The architecture is designed to facilitate operation across various applications, streamlining capabilities from simple tasks to complex integrations, thus creating a robust foundation for building an all-in-one chat application similar to OpenAI’s system.
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