{"version":"2.1.280","anchor":"the-main-system-prompt-was-rewritten","canonical_anchor":"the-main-system-prompt-was-rewritten","heading":"The main system prompt was rewritten","tier":"notice","area":"System Prompt","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280\/e\/the-main-system-prompt-was-rewritten","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280","markdown":"### The main system prompt was rewritten\n\nThe main system prompt was rewritten, including new guidance to default to the latest, most capable Claude models\n\n**What**\n\nThe main system prompt Claude Code sends was rewritten. The new text seen in this release includes the line: \"When building AI applications, default to the latest and most capable Claude models.\" This appears across the CLI and SDK-CLI system prompt variants for both signed-in and anonymous accounts, in the arm quoted here.\n\n**Why**\n\nThis steers Claude toward recommending newer, more capable Claude models by default when it is helping build AI applications, rather than defaulting to older ones.\n\n- Area: System Prompt\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 1\/5"}