Explain the recent failed calls

Reads this user's real Adako call log, finds the calls that failed or were blocked, and explains each one: the cause, the fix, and the tool to call next. Free; reads Adako's own database and contacts no platform. Use when: the user says "that didn't work", "why did that fail" or "it's broken", or after any tool returned an error and you want the history rather than one message. When not to use: the user pasted a raw platform error — explain_error decodes that directly. And this cannot see failures from other conversations of other users, only this user's own calls. Returns one row per failed call, newest first, with the redacted arguments so the user recognises it. If nothing has failed it says so plainly rather than inventing a problem.