hooks_notify
Send cross-agent notification Use when native Bash hooks (via Claude Code\
This record as markdown: /tools/ruflo/hooks-notify.md
What hooks_notify does on Ruflo
AI agents invoke hooks_notify to trigger actions in Ruflo. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why hooks_notify is rated High
This tool sends notifications across agents and invokes Bash hooks, which constitutes triggering external operations in a multi-agent environment. The blast radius is high because misuse could cascade across an entire swarm of autonomous agents, triggering unintended workflows or Bash hook executions.
From the tool's definition 'Send cross-agent notification' and 'native Bash hooks (via Claude Code)' — triggers cross-agent communication and hooks execution in a multi-agent swarm system
Attacks that exploit this kind of access
The rule that runs hooks_notify safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ruflo, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For hooks_notify, this is the rule to start with:
hooks_notify stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Ruflo, apply this rule, and every hooks_notify call is checked against it from then on.
Questions about hooks_notify
Send cross-agent notification Use when native Bash hooks (via Claude Code\. It is categorised as a Execute tool in the Ruflo MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Ruflo MCP server in PolicyLayer and add a rule for hooks_notify: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ruflo. Nothing to install.
hooks_notify is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the hooks_notify rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for hooks_notify. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
hooks_notify is provided by the Ruflo MCP server (ruvnet/ruflo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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