[FEATURE] add Claude Code's "/insights" capability to Cowork

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

I love the "/insights" audit, but can't use it for anything created in cowork

Proposed Solution

enable an "/insights" skill in cowork

Alternative Solutions

_No response_

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_