Use it now Notable
Admins can now append custom free-text guidance to the system prompt org-wide.
A new organizationInstructions managed setting lets admins configure free-text guidance, up to 3000 characters, that Claude Desktop appends to the system prompt in Chat, Cowork, and Code sessions. It is described as guidance the model follows rather than an enforced control.
Names in the bundleorganizationInstructions
Documented inclaude-docs/cowork/changelog
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed since
Anthropic's documentation has since written up organizationInstructions, on Configuration reference.
| <span id="organizationinstructions" />Organization instructions<br />`organizationInstructions` | `string` | MDM + Bootstrap<br />Added in 1.37937.0 | — | Appended to Claude’s system prompt in Chat, Cowork, and Code. Guidance the model f…third-party/claude-desktop/configuration see the edit
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agrees
Anthropic's documentation has since written up organizationInstructions, on Configuration reference.