Get comments from a specific Reddit post by its URL or permalink.
AI agents call post_comments to retrieve information from Reddit Search without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves publicly available comment data from Reddit posts. It has no side effects, does not modify any data, and uses public JSON endpoints. Misuse potential is minimal — it can only read public information.
From the tool's definition Get comments from a specific Reddit post by its URL or permalink
Attacks that exploit this kind of access
Get comments from a specific Reddit post by its URL or permalink. It is categorised as a Read tool in the Reddit Search MCP Server, which means it retrieves data without modifying state.
Register the Reddit Search MCP server in PolicyLayer and add a rule for post_comments: 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 Reddit Search. Nothing to install.
post_comments 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 post_comments 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 post_comments. 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.
post_comments is provided by the Reddit Search MCP server (uniteum/reddit-search). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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