{"version":"2.1.290","anchor":"new-flag-constant-tengu-jaunty-forest","canonical_anchor":"new-flag-constant-tengu-jaunty-forest","heading":"A new experiment switch with no visible effect yet","tier":"internal","area":"Internals","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.290\/e\/new-flag-constant-tengu-jaunty-forest","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.290","markdown":"### A new experiment switch with no visible effect yet\n\nClaude Code now names a new server-controlled experiment switch whose purpose is not shown\n\n**Unclear.** What this switch controls and its default value are not known.\n\n**What**\n\nClaude Code now contains a new experiment switch named `tengu_jaunty_forest`. Switches like this are turned on or off from Anthropic's servers. Nothing in this build shows what it controls or what it falls back to.\n\n**Why**\n\nThere is nothing for you to do. It is a marker for a feature that is not visible yet.\n\n- Flag `tengu_marble_heron`: Not enough to say (read for one account on one subscription tier against v2.1.290; this account: no value returned, anonymous baseline: no value returned, compiled default: not a boolean we can read) 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.\n- Area: Internals\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}