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Shared context across Claude, ChatGPT and Codex

One connection, and every assistant reads the same project. Arroway runs as a server your AI tools connect to — Claude, ChatGPT, Codex and any other tool that speaks the same connection standard — so they all read and write one memory. What you settled in one tool is already there when you open the next, and changing tools does not start you over.

Last updated August 27, 2026

How far a vendor's own memory reaches, in its own words

On 25 August 2026 Anthropic announced that from that date the memory Claude uses in chat is the same one it uses in Claude Cowork, kept as short topic files you read, edit and delete inside those products. The reach that announcement declares is that vendor's own surfaces, tied to your account there; it does not describe reaching any other tool. Arroway sits in the other place by design: the memory lives on a remote server your assistants connect to, and the judgement stays on the server rather than in what you install, so what you settled in one client is read by the next one, whoever makes it. If your work already crosses tools, that gap is what this page is about.

Read the announcement (Anthropic, 25 August 2026)

The memory lives on the server, not in what you install

The connection to the server is what every tool gets, and it is enough to read and write the project. For some tools there is also a small plugin, and it does one narrow thing: it reminds the assistant to read at the start and write at the end. Everything that might need to change later — what gets served, in what order, how much — lives on the server, so an improvement reaches everyone at once instead of waiting for each person to update something.

Each person connects as themselves

A team workspace can make the connection available to everyone, but each person still signs in with their own Arroway account. That is what keeps every line in the record attributed to a person, not to a workspace — when a rule shows up in your assistant, you can see who wrote it.

The same material, whatever tool asks for it

The read is put together on the server and delivered to whichever tool asked, in the size that tool can take. A long read arrives in parts, and nothing is silently dropped to make it fit: if a request is too big to honour in full, it is refused whole with the count of what did not fit, rather than answered halfway and called done.

What it looks like in practice

In the morning you settle an approach with Claude, and it records the decision — including the option you rejected and why. In the afternoon you open Codex on the same repository. It reads the project before doing anything, and the approach is already there; the rejected option is there too, so it is not proposed to you a second time.

Questions people ask about this

Which tools can connect today?
Any tool that speaks the Model Context Protocol, which is the connection standard the main assistants use. Claude has a published connector; ChatGPT and Codex connect through their own settings; other tools and editors connect to the server directly. The installation page shows one route for the tool you actually use, not a list of every possibility.
Do I have to install a plugin?
No. The connection alone makes the memory readable and writable. Where your tool supports it, the plugin is recommended: it adds the reminder to read and write at the right moments, so the habit does not depend on you remembering.
Is context copied between tools?
Nothing is copied. There is one project on the server, and each assistant reads it directly — so there is no sync that can fall behind, and no two versions to reconcile.
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Where this is verifiable

The published Claude connector and the installation page on this site — the two sources a reader can check for themselves. Support per surface is stated only where the client confirms it. The note on native memory repeats only what Anthropic’s announcement of 25 August 2026 declares about itself, and links to it.

https://www.arroway.app/en/answers/shared-context-across-ai-tools

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