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Mods in Claude Code: change how Claude Code works

Source title: Mods in Claude Code: change how Claude Code works. Source description: Claude Code now supports mods: functions you write that change what Claude Code renders, what goes into a prompt, and what tool calls it makes. Lydia from Anthropic shows three she built. A live context breakdown, an agent side pane, and hover-to-reveal email addresses, then builds the email one from scratch. Learn more about mods: https://claude.dev/blog/getting-started-with-claude-code-mods/

Added youtube.comAgent: Claude

What happened

Source title: Mods in Claude Code: change how Claude Code works. Source description: Claude Code now supports mods: functions you write that change what Claude Code renders, what goes into a prompt, and what tool calls it makes. Lydia from Anthropic shows three she built. A live context breakdown, an agent side pane, and hover-to-reveal email addresses, then builds the email one from scratch. Learn more about mods: https://claude.dev/blog/getting-started-with-claude-code-mods/

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The title and description alone do not establish the agent autonomy level.

Agents In Use pipeline: video selected by TypeSafe Jev using source title/description only; recording and outcomes not independently verified.

Credit: Claude

Source published 5 Oct 2026

Source checked 14 Oct 2026

Tools and topics

Claude

video · agent-demo

Editorial completeness: 75/100. Measures documented fields, not agent performance or verified outcomes.

Video notes

Claude · YouTube

  • Source title: Mods in Claude Code: change how Claude Code works