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Write Guard Hook
Blocks your agent from writing to Meta directly — only through recipes with guardrails.
In production since Mar 2026
THE WORKFLOW AT A GLANCE3 steps
- 01
Install hook into agent settings
- 02
Match write tool names
- 03
Deny with a reason pointing to the safe recipe
The work it takes off your plate.
Generic Meta MCP servers let an agent create, update or delete anything with no checks.
What you get
A PreToolUse hook that denies create/update/delete/pause tools of Meta MCP servers, with an explanation. Reads stay open.
TRIGGER
event
CONNECTIONS