Cowork packages skills with reference files

Anthropic is making the reusable part of prompting first-class, which is a smarter bet than endlessly polishing chat UI. Once a task becomes a packaged workflow, it can be shared, reused, and improved like internal software.

• –Skills and reference files reduce prompt drift and make outputs more consistent across sessions.
• –The Astro and Three.js examples show Cowork being aimed at real project scaffolding, not just document cleanup.
• –This feels like internal tooling for knowledge work, which is a stronger wedge than a one-off demo.
• –The hard part is governance: stale references, broad permissions, and sloppy review loops can turn speed into risk.