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Documentation 2026-08-26 23:58 UTC to 2026-08-27 23:57 UTC

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641 oneLiner: 'Custom system-prompt sections that adjust how Claude works',641 oneLiner: 'Custom system-prompt sections that adjust how Claude works',

642 when: 'Applied at session start when selected via the outputStyle setting',642 when: 'Applied at session start when selected via the outputStyle setting',

643 description: [<>Each markdown file defines an output style: a section appended to the system prompt that, by default, also drops the built-in software-engineering task instructions. Use this to adapt Claude Code for uses beyond coding, or to add teaching or review modes.</>, <>Select a built-in or custom style with <C>/config</C> or the <C>outputStyle</C> key in settings. Styles here are available in every project; project-level styles with the same name take precedence.</>],643 description: [<>Each markdown file defines an output style: a section appended to the system prompt that, by default, also drops the built-in software-engineering task instructions. Use this to adapt Claude Code for uses beyond coding, or to add teaching or review modes.</>, <>Select a built-in or custom style with <C>/config</C> or the <C>outputStyle</C> key in settings. Styles here are available in every project; project-level styles with the same name take precedence.</>],

644 tips: ['Built-in styles Explanatory and Learning are included with Claude Code; custom styles go here', <>Set <C>keep-coding-instructions: true</C> in frontmatter to keep the default task instructions alongside your additions</>, 'Changes take effect on the next session since the system prompt is fixed at startup for caching'],644 tips: ['Built-in styles Default, Proactive, Concise, Explanatory, and Learning are included with Claude Code; custom styles go here', <>Set <C>keep-coding-instructions: true</C> in frontmatter to keep the default task instructions alongside your additions</>, 'Changes take effect on the next session since the system prompt is fixed at startup for caching'],

645 docsLink: '/en/output-styles',645 docsLink: '/en/output-styles',

646 children: [{646 children: [{

647 id: 'output-style-example',647 id: 'output-style-example',