DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.
Web fetching is not offered in restricted sessions
You'll notice
Useful2Signal2
Permissions
Restricted sessions no longer get offered the web-fetch flow.
What's wrong with this entry?
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What
The check that decides whether to offer the web-fetch flow now returns false immediately when the session is restricted and the fetch tool is disallowed, before any other condition is evaluated.
Evidence
!(t.restricted && _s(t, { name: Yr }))
Strings lifted out of the shipped bundle, so the claim above can be checked against them.