{"version":"2.1.317","anchor":"ultrathink-boost-and-file-search-tweaks","canonical_anchor":"ultrathink-boost-and-file-search-tweaks","heading":"Ultrathink raises effort in one more case, and Linux gains an ending-based file search","tier":"notice","area":"Effort","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.317\/e\/ultrathink-boost-and-file-search-tweaks","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.317","markdown":"### Ultrathink raises effort in one more case, and Linux gains an ending-based file search\n\nThe ultrathink boost to xhigh effort can now be triggered one more way, and on Linux Claude Code can search for files by how their names end\n\n**Unclear.** What the second input condition that triggers the ultrathink boost is has not been identified.\n\n**What**\n\nTwo smaller changes:\n\n- Ultrathink: typing ultrathink raises the effort level, meaning how much reasoning the model does, to xhigh. That boost used to depend only on a check made when you press Enter in the prompt box. One other input condition can now trigger it too.\n\n- File search: on Linux, the part of Claude Code that finds files gains a search for files whose names end in a given text, with its own time limit.\n\n**Why**\n\nThe ultrathink boost can now apply in a case where it did not before, and file lookups on Linux have one more way to search.\n\n- Area: Effort\n- Names: `ultrathink`\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}