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Sweep 27 Oct 2026 · 19:04Z Build v2.1.312 531 read Stable v2.1.308 Latest v2.1.312 Next v2.1.312 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.312 ·

Chart tool is not available when a network proxy is set

Claude Code no longer offers its chart tool when a network proxy is configured

Nothing to try yet In Development
JSON All of v2.1.312
Nothing to try yetTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ChartsArea: what it touches
In DevelopmentKind: in v2.1.312,
What probably matters to youSection of the release
What

Claude Code now checks whether a network proxy (a server your traffic is routed through) is set before offering its chart tool. When one is set, the tool is not added and a debug line reads "no chart tool: a proxy is set". Without a proxy, the tool is added as before.

Why

If you work behind a proxy, Claude cannot draw charts with this tool.

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Feature flag
tengu_virtual_toast Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.312: off

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.312. It isn't a statement about your account. What a flag value here can and cannot tell you

See this entry in the whole of v2.1.312 →

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