# Permissions Are A Runtime, Not A Popup

By Rajdeep Mondal. Published 2026-04-26. 6 min read

Canonical: https://www.rajdeepmondal.com/writing/permissions-are-a-runtime-not-a-popup

Tags: Agents, Claude Code, AI Systems

> The runtime decides whether a tool runs, with a ladder of rules and then a race between answerers. Whatever the ladder does not settle falls to the race: you, a hook, an automatic check, or a phone. The first answer wins.

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