Pinning

A pin says “this surface is ALWAYS this task” at 100%, overriding everything else. Click the pin button in the popover to open the pin editor.

• Components (the default) - the captured identity is shown broad to narrow (host then path for a URL; app then window-name parts for an app). Blue parts are pinned, grey are not. Click a part, or use ← / → , to widen or narrow the scope. App pins default to app + window name and match on PRESENCE, so a pinned terminal window keeps matching even when the terminal prepends its mode to the title.
• Expression (via the hamburger menu) - a typed boolean rule. Fields: app, title, url, sender (alias from), subject, any. Operators: is, contains, starts with, matches (regex). Logic: and, or, not, parentheses. Negation reads naturally too (app is not "Ghostty", url does not contain "github"). from/sender match the email correspondents and subject the email subject (so from contains "harborlane.example" pins all mail to/from that company); any – and bare text with no field – searches every field including the correspondents and subject. A parse error shows in full above the buttons.
• AI (via the hamburger menu) - for a window whose own app/title/url don’t obviously say which task it is. It builds a prompt from the captured fields plus an editable guidance box (pre-seeded to prefer a stable pattern over a volatile title), copies it to the clipboard for you to paste into any AI, and takes the reply back: paste the rule it returns and ↵ turns it into an ordinary, editable Expression rule (or shows a parse error). When a typed Expression won’t parse, a Fix with AI button hands the failed rule straight to this mode.
• Enter pins. The ✕ (or esc) means “no pin here”: it unpins when you opened on an existing pin, or drops a never-saved draft.