hallpass: open-source tool checks agent permissions live before every tool call

Adorable-Algae6903 · reddit · 2026-09-24

A Reddit user released hallpass, an open-source tool addressing OWASP's "Excessive Agency" risk: agents acting in Jira, GitHub, Slack, Salesforce or AWS typically use one bot credential, so anyone who can talk to the agent can perform actions they couldn't themselves.

Before a tool call runs, hallpass queries the target system live with a read-only credential and returns allow, deny, or unknown — with unknown failing closed. It never performs the action itself.

The author also asks how others handle this: per-user OAuth, per-team bots, or human approval for destructive actions.

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