pack · core tier
Agent Guardrail Pack
Seven controls that refuse the commands that deleted other people's work.
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Your coding agent will eventually run something it should not. These are the seven commands it runs — each one derived from a documented incident where an agent destroyed a production database, a repository, or fifteen years of family photos. Installs as a PreToolUse hook that actually refuses, cites the incident it is protecting you from, and stays silent the rest of the time.
Why it's different
- ▸ Refuses at the tool call — does not depend on the model choosing to comply
- ▸ Three-way decisions: denies catastrophes, asks about ambiguity, stays silent otherwise
- ▸ Every block cites its incident and links to the write-up
- ▸ Python 3 stdlib only — nothing to install, nothing to trust
Questions, answered
Does this work with Cursor?+
Partly, and the honest answer matters here. Real enforcement needs a PreToolUse hook, which Claude Code has and Cursor does not. Cursor gets .cursorrules — the same seven rules as instructions the agent can ignore. If you are on Cursor you are buying documented rules, not enforcement.
Will it get in my way?+
It is silent on ordinary commands, and every control ships a test proving it permits normal work — `rm -rf node_modules`, `git push`, `prisma db push` against localhost. Ambiguous cases show a permission dialog rather than guessing.
Is this a sandbox?+
No, and do not treat it as one. It reads the command about to run, so it will not see a deletion inside a script the agent wrote and then executed. It raises the floor against the documented failure modes.
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