Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.269 ·

New feature-flag fields for artifact REPL path and server classifier shadow mode

Two new internal feature flags added: artifactReplPathEnabled and serverClassifierShadowEnabled

TierUnder the hoodhow much it should matter to you
Useful2my rating, 1 to 5
Signal3worth watching, 1 to 5
AreaInternalswhat it touches
KindInternal Changesin v2.1.269,
Under the hood No documentation found

Two new internal feature flags added: artifactReplPathEnabled and serverClassifierShadowEnabled

What

An internal list of feature flags that Claude Code tracks gained two new entries: artifactReplPathEnabled and serverClassifierShadowEnabled, joining existing flags such as tetherLiveGate and autoModeContextEnabled.

Why

New flags like these typically gate features still being rolled out gradually; their names suggest a path related to running artifacts interactively and a shadow (test-only, non-user-facing) mode for a server-side classifier, but the finding does not say what either one actually controls yet.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhat these two flags actually enable, and whether either is active for any user yet, is not stated.

See this entry in the whole of v2.1.269 →