What
Whiteboard element validation now rejects an image element with no valid src, and rejects a src on any element that is not an image.
Evidence
if (r.type === "image")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Names in the bundlesrc
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 src, on Security and data handling.
<img className="block dark:hidden" src="https://mintcdn.com/claude-ai/oY6LusJt4c576Dc3/images/claude-tag/diagrams/request-path.svg?fit=max&auto=format&n=oY6LusJt4c576Dc3&q=85&s=a7f2e0f4303072b4c8e4f3197bf0cb12" alt="Diagram showing the req…claude-tag/concepts/security-and-data see the edit
Added since
A small documentation edit on How agent identity works touched a line naming src after this was published.
<img className="block dark:hidden" src="https://mintcdn.com/claude-ai/oY6LusJt4c576Dc3/images/claude-tag/diagrams/request-path.svg?fit=max&auto=format&n=oY6LusJt4c576Dc3&q=85&s=a7f2e0f4303072b4c8e4f3197bf0cb12" alt="Diagram showing the req…claude-tag/concepts/agent-identity see the edit
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agrees
A small documentation edit on How agent identity works touched a line naming src after this was published.