Agent firewall blocked by Hermes Agent over a shell command in a docstring

Teknium · x · 2026-11-15

Teknium welcomed a developer to the Hermes Agent ecosystem by quoting their funny war story: the dev built a firewall to protect AI agents, only for Hermes Agent to block the firewall itself — because a shell command appeared inside a docstring. A one-line fix got things back on track.

The takeaway: we've reached the point where security tools need protection from security tools. A cautionary tale about overly aggressive guardrails in coding agents.

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