reddit_comment · UnClick MCP: Risk & Policy

WHAT IT DOES

What reddit_comment does on UnClick

AI agents use reddit_comment to create or update resources in UnClick — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your UnClick environment.

PARAMETERS

Parameter	Type	Required
`text`	string	Yes
`parent_id`	string	Yes
`access_token`	string	Yes

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why reddit_comment needs a policy

This tool creates new data (a Reddit comment) reversibly. While posting is a Write-category action, the severity is medium because: (1) comments can be edited/deleted by the poster, (2) blast radius is limited to a single comment thread, and (3) misuse could spam or harass but lacks the destructive or financial impact of higher-severity categories. High confidence because the description is explicit and unambiguous.

From the tool's definition Tool description explicitly states 'Post a comment on Reddit' — a create/post operation that adds new content to a social platform.

Risk signalsHandles credentials or secrets (access_token)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

reddit_comment Rate-limited

reddit_comment 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "reddit_comment": {
      "limits": [
        {
          "counter": "reddit_comment_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches UnClick, so you can run agents against it safely.

FAQ

Questions about reddit_comment

What does the reddit_comment tool do? +

Post a comment on Reddit. It is categorised as a Write tool in the UnClick MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does reddit_comment accept? +

reddit_comment accepts 3 parameters: text, parent_id, access_token. Required: text, parent_id, access_token. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on reddit_comment? +

Register the UnClick MCP server in PolicyLayer and add a rule for reddit_comment: 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 UnClick. Nothing to install.

What risk level is reddit_comment? +

reddit_comment is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit reddit_comment? +

Yes. Add a rate_limit block to the reddit_comment 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.

How do I block reddit_comment completely? +

Set action: deny in the PolicyLayer policy for reddit_comment. 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.

What MCP server provides reddit_comment? +

reddit_comment is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.