generate_hashtags · Viraly MCP Server MCP: Risk & Policy

WHAT IT DOES

What generate_hashtags does on Viraly MCP Server

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

WHY IT NEEDS A POLICY

Why generate_hashtags needs a policy

Generating hashtags is a content creation/modification action that affects the final form of a post. While it does not directly publish or delete content, it writes/appends data to a caption or post draft. The severity is medium because misuse could result in inappropriate hashtags being added to a post, but the impact is reversible (hashtags can be removed or edited before publishing).

From the tool's definition The tool generates and returns hashtags that the caller can 'append to a caption,' which modifies content intended for posting.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_hashtags Rate-limited

generate_hashtags 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": {
    "generate_hashtags": {
      "limits": [
        {
          "counter": "generate_hashtags_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 Viraly MCP Server, so you can run agents against it safely.

FAQ

Questions about generate_hashtags

What does the generate_hashtags tool do? +

Generate a set of relevant hashtags for a post or topic using AI. Returns them as a single space-separated string the caller can append to a caption. It is categorised as a Write tool in the Viraly MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_hashtags? +

Register the Viraly MCP Server MCP server in PolicyLayer and add a rule for generate_hashtags: 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 Viraly MCP Server. Nothing to install.

What risk level is generate_hashtags? +

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

Can I rate-limit generate_hashtags? +

Yes. Add a rate_limit block to the generate_hashtags 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 generate_hashtags completely? +

Set action: deny in the PolicyLayer policy for generate_hashtags. 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 generate_hashtags? +

generate_hashtags is provided by the Viraly MCP Server MCP server (viraly-io/viraly-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.