mastodon_import_blocklist
Import a domain blocklist (IFTAS / Bad Space / custom URL). QUEUED — requires operator confirmation. Rate-limited: 2/hour.
This record as markdown: /tools/kh0pper-crow/mastodon-import-blocklist.md
What mastodon_import_blocklist does on Crow
AI agents use mastodon_import_blocklist 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_import_blocklist is rated Medium
Importing a blocklist creates or updates blocking rules in the Mastodon instance, which is a reversible write operation. While it modifies security policy, it is not destructive (can be undone by removing entries) and not financial. The rate-limiting and operator confirmation requirement suggest the system recognizes this as a significant state-changing operation.
From the tool's definition Tool description states 'Import a domain blocklist' which creates or modifies blocklist data. The phrase 'requires operator confirmation' and 'Rate-limited: 2/hour' indicate this is a modifying operation that persists state rather than a read-only query.
Attacks that exploit this kind of access
The rule that runs mastodon_import_blocklist 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_import_blocklist, this is the rule to start with:
mastodon_import_blocklist 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_import_blocklist call is checked against it from then on.
Questions about mastodon_import_blocklist
Import a domain blocklist (IFTAS / Bad Space / custom URL). QUEUED — requires operator confirmation. Rate-limited: 2/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_import_blocklist: 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_import_blocklist 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_import_blocklist 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_import_blocklist. 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_import_blocklist 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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