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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial

A new setting skips WebFetch's safety check against api.anthropic.com for firewalled deployments.

TierUse it nowhow much it should matter to you
Useful3my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaWebFetchwhat it touches
KindNew Featuresin v2.1.260,
Use it now Notable

A new setting skips WebFetch's safety check against api.anthropic.com for firewalled deployments.

A new skipWebFetchPreflight setting skips Claude Code's WebFetch domain-safety lookup against api.anthropic.com in Code sessions, useful when that host is firewalled off in third-party deployments.

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Names in the bundleskipWebFetchPreflight
What the documentation says
Since it was published

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 skipWebFetchPreflight, on Configuration reference. | <span id="skipwebfetchpreflight" />Skip WebFetch domain check<br />`skipWebFetchPreflight` | `boolean` | MDM + Bootstrap<br />Added in 1.37937.0 | — | Skip Claude Code’s WebFetch domain lookup against api.anthropic.com in Code sessions. … third-party/claude-desktop/configuration see the edit
Added since A small documentation edit on Telemetry and egress touched a line naming skipWebFetchPreflight after this was published. With `disableEssentialTelemetry`, `disableNonessentialTelemetry`, `disableNonessentialServices`, and `disableAutoUpdates` all set to `true`, the desktop application makes **no outbound connections to Anthropic-operated hosts at runtime**. … third-party/claude-desktop/telemetry see the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesA small documentation edit on Telemetry and egress touched a line naming skipWebFetchPreflight after this was published.

See this entry in the whole of v2.1.260 →

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