mastodon_mute_user
Mute an account (hide posts but still federate). Rate-limited: 5/hour.
This record as markdown: /tools/kh0pper-crow/mastodon-mute-user.md
What mastodon_mute_user does on Crow
AI agents use mastodon_mute_user to create or update resources in Crow, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Crow environment.
Why mastodon_mute_user is rated Medium
Muting a user is a reversible social action — it suppresses visibility of that account's posts for the authenticated user but does not delete data or sever federation. It can be undone by unmuting, placing it firmly in the Write category. Severity is medium because misuse could silently mute users the account holder wants to see, disrupting communications without obvious indication.
From the tool's definition Mute an account (hide posts but still federate)
Attacks that exploit this kind of access
The rule that runs mastodon_mute_user safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crow, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mastodon_mute_user, this is the rule to start with:
mastodon_mute_user 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 Crow, apply this rule, and every mastodon_mute_user call is checked against it from then on.
Questions about mastodon_mute_user
Mute an account (hide posts but still federate). Rate-limited: 5/hour. It is categorised as a Write tool in the Crow MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Crow MCP server in PolicyLayer and add a rule for mastodon_mute_user: 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 Crow. Nothing to install.
mastodon_mute_user 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 mastodon_mute_user 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 mastodon_mute_user. 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.
mastodon_mute_user is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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