{"version":"2.1.318","anchor":"thinking-effort-resolution-accepts-a-hook-supplied-effort-va","canonical_anchor":"thinking-effort-resolution-accepts-a-hook-supplied-effort-va","heading":"Hooks can supply a value that feeds into the thinking effort level","tier":"internal","area":"Hooks","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.318\/e\/thinking-effort-resolution-accepts-a-hook-supplied-effort-va","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.318","markdown":"### Hooks can supply a value that feeds into the thinking effort level\n\nWhen Claude Code works out how hard the model should think, it now also takes into account an effort value supplied by a hook\n\n**Unclear.** It is unclear how a hook supplies this value and whether it overrides the other effort settings.\n\n**What**\n\nEffort is how much reasoning the model puts into a reply. Claude Code works out the effort level from the model, the set effort, the current turn's effort and any effort carried over. It now also takes in an effort value that comes from a hook. A hook is a script you configure that Claude Code runs at certain moments.\n\n**Why**\n\nThis means hooks may be able to steer how hard Claude thinks.\n\n- Area: Hooks\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 3\/5\n- Scope: individual\n- Heads-up: no"}