Per-site navigation memory for tandem's shared browser. Profiles that describe a site's skeleton (routes), its durable locators, navigation recipes, and gotchas, so you navigate KNOWING instead of re-deriving the DOM each time. Use it when you start operating a site (check whether a profile already exists), when you finish a recon worth saving, or when a saved locator fails (re-record). ASSISTED recon: you draft, the human confirms, it's saved.
How to operate the Chrome browser shared with the human (the tandem MCP's browser_* tools). Use it whenever you need to navigate, read/analyze pages, get past blocks that require human interaction (captchas, anti-bot checkpoints, logins), or inspect the network/DOM in real time alongside the human.