modelcontextprotocol / modelcontextprotocol/ext-apps

SEP: Define state behavior

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#62 3 comments 0 reactions 1 assignee View on GitHub

@idosal is already working on this.

Since Dec 1, 2025.

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Description

App-related state has multiple sources (e.g., tool input/output). Some sources may change during the App's lifecycle (e.g., follow-up tool outputs).

We must define the behavior around state updates and rehydration.

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