{"version":"2.1.319","anchor":"gate-changes-tengu-rippling-map-and-tengu-merry-tide","canonical_anchor":"gate-changes-tengu-rippling-map-and-tengu-merry-tide","heading":"Chrome tool instructions can be moved to the end of Claude's instructions","tier":"internal","area":"Claude in Chrome","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.319\/e\/gate-changes-tengu-rippling-map-and-tengu-merry-tide","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.319","markdown":"### Chrome tool instructions can be moved to the end of Claude's instructions\n\nA remote setting can move the Chrome tool's instructions note to the end, and a remote switch now controls one deferred tool\n\n**What**\n\nThree remote switches, which Claude Code's servers can set, are involved:\n\n- `tengu_moonlit_goblet`: a setting whose `chromeNoteLast` option moves the note about the Chrome tools to the end of the instruction updates Claude receives.\n\n- `tengu_merry_tide`: decides whether one deferred tool, a tool loaded only when needed, is available. It falls back to off when the server sends nothing.\n\n- `tengu_rippling_map`: still controls the extra mark on HTTP MCP tool calls and still falls back to on.\n\n**Why**\n\nThe Chrome change tests whether putting that note last helps caching, where the model reuses earlier parts of the instructions instead of reading them again.\n\n- Flag `tengu_moonlit_goblet`: Not enough to say (read for one account on one subscription tier against v2.1.319; 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- Flag `tengu_rippling_map`: Not enough to say (read for one account on one subscription tier against v2.1.319; this account: no value returned, anonymous baseline: no value returned, compiled default: on) 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- Flag `tengu_merry_tide`: Off in both readings (read for one account on one subscription tier against v2.1.319; this account: off, anonymous baseline: off, compiled default: 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.\n- Area: Claude in Chrome\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}