Retrieve cached subreddit intelligence from the DB (rules, flairs, timing, culture notes).
AI agents call crow_campaign_get_subreddit to retrieve information from Crow without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a pure read operation against a database to fetch cached information. There are no side effects, no data modifications, no code execution, and no destructive actions. The blast radius is minimal — misuse would only expose existing cached data about subreddit metadata, which is typically public information.
From the tool's definition Tool description explicitly states 'Retrieve cached subreddit intelligence from the DB' — a data retrieval operation with no modification, creation, or deletion. Returns read-only intelligence data (rules, flairs, timing, culture notes).
Documented attack patterns abuse exactly the kind of access crow_campaign_get_subreddit gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Crow, and nothing reaches the server without passing your rules. This is the rule we recommend for crow_campaign_get_subreddit:
{
"version": "1",
"default": "deny",
"tools": {
"crow_campaign_get_subreddit": {}
}
}crow_campaign_get_subreddit is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Retrieve cached subreddit intelligence from the DB (rules, flairs, timing, culture notes). It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.
Register the Crow MCP server in PolicyLayer and add a rule for crow_campaign_get_subreddit: 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.
crow_campaign_get_subreddit is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the crow_campaign_get_subreddit 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 crow_campaign_get_subreddit. 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.
crow_campaign_get_subreddit 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.
Start from Crow, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
576 Crow tools catalogued and risk-classified — across an index of 43,000+ MCP servers.