Find a work phone number

The insight: phone is the most expensive and most regulated field in contact data — found is not the same as dialable. A mobile lookup costs ~5–10x an email lookup, and even a good waterfall validates a mobile for only about half of senior US contacts, less elsewhere — misses are normal. An HQ switchboard is not a direct line, and an unconsented call or text to a mobile carries legal risk (DNC registries, US TCPA, GDPR) that a cold email doesn't. So the find includes line-type validation, honest typing, and a compliance flag — never just "here's a number."

Declared inputs

Nothing here ships with a value. Each one is the installer's, not the author's: ask for it, never substitute a plausible default, and where an answer does not exist say which step becomes unavailable rather than guessing. Where a default IS defensible it is named below, and using it means saying so in the output.