Nothing to try yetTier: how much it should matter to you
4Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
In DevelopmentKind: in v2.1.257,
What probably matters to youSection of the release
Artifact "open action" behavior is now controlled by the CLAUDE_CODE_ARTIFACT_OPEN_ACTION env var, falling back to the tengu_cobalt_plinth_willow gate (off by default). This replaces the prior behavior of the same function, which built an internal --computer-use-mcp MCP config, so it's a genuine behavior swap rather than a rename. Surrounding code enumerates browser executable paths (Chrome, Chromium, Edge, Brave), suggesting this governs whether an artifact auto-opens in a local browser.
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 v2.1.257: 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.
Flag reading movedThe flag server now returns on for tengu_cobalt_plinth_willow, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading movedThe flag server now returns off for tengu_cobalt_plinth_willow, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading movedThe flag server now returns on for tengu_cobalt_plinth_willow, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.