How do you stop your AI tools from working with outdated context?

A pattern I keep seeing: the AI answer sounds right, but it's built on last week's info. A deadline that moved in Slack, a brief the client changed over email, a decision the team reversed in a meeting.

The model is fine. The context it has is old. how people here handle it :

- Do you paste a fresh summary into every new chat?

- Keep a running "project context" doc?

- Use a memory feature in your AI tool?

- Or just double-check everything by hand?

What's worked for you, and what broke?