This record as markdown: /tools/com-getmunin-munin/webhooks-rotate-secret.md
What webhooks_rotate_secret does on Munin
AI agents use webhooks_rotate_secret to create or update resources in Munin, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Munin environment.
Why webhooks_rotate_secret is rated Medium
This tool creates or modifies a webhook secret, which is a reversible write operation. While it affects security credentials, rotating secrets is a standard administrative operation. Severity is medium because misuse could expose webhook authentication or break integrations if rotated without proper synchronization, but it's not destructive (old secret can be retained temporarily) and not financial.
From the tool's definition Tool name 'webhooks_rotate_secret' and description 'Generate a new' (incomplete but implies creation of a new secret value). The verb 'rotate' and 'generate' indicate creation/modification of authentication material.
Attacks that exploit this kind of access
The rule that runs webhooks_rotate_secret safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Munin, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For webhooks_rotate_secret, this is the rule to start with:
webhooks_rotate_secret stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Munin, apply this rule, and every webhooks_rotate_secret call is checked against it from then on.
Questions about webhooks_rotate_secret
Generate a new. It is categorised as a Write tool in the Munin MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Munin MCP server in PolicyLayer and add a rule for webhooks_rotate_secret: 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 Munin. Nothing to install.
webhooks_rotate_secret is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the webhooks_rotate_secret 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 webhooks_rotate_secret. 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.
webhooks_rotate_secret is provided by the Munin MCP server (https://mcp.getmunin.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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