Data modelling and DAX
A good assistant doesn’t wait to be asked. They walk in with a briefing. A trigger phrase in custom instructions fires off a structured routine that reads my calendar, summarises emails, surfaces carry-forward items, and gives me a single morning report.
An assistant that can’t see your real work can only help with what you remembered to tell it. Power Automate flows fix that by dropping calendar events, emails, and Teams messages into your workspace as plain markdown.
Custom instructions teach Copilot who you are. Skills teach it how you work. A SKILL.md file with trigger phrases gets pulled into the chat the moment you mention the trigger.
A single instructions file that loads into every chat. Org chart, customers, conventions, preferences. Turns a generic assistant into one that knows your world. The single biggest unlock I have found.
