Giving AI agents their own inbox is architecturally wrong, Reddit thread argues

Creamy-And-Crowded · reddit · 2026-09-02

A Reddit post challenges the growing pitch of giving agents a single SDK-powered identity covering email, calendar, contacts, files, memory and payments.

The author argues this is backwards: agents still can't reliably separate instructions from content, so bundling untrusted input with everything needed to act on it in one account is a prompt-injection hazard. He says he'd never run such an agent in production, preferring per-action, expiring credentials, and asks for any real use case that requires a broad, permanent agent identity.

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