add_slack_reaction

SERVERFreshdesk SOURCE@mindstone-engineering/mcp-server-freshdesk

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/freshdesk/add-slack-reaction.md

WHAT IT DOES

What add_slack_reaction does on Freshdesk

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

RISK

Why add_slack_reaction is rated Medium

Adding an emoji reaction to a message creates new data (the reaction record) and modifies the message's state, fitting the Write category. While the change is reversible (reactions can be removed), it represents a modification to data.

From the tool's definition The tool description explicitly states it will 'Add an emoji reaction to a Slack message', which modifies Slack message state by adding a reaction. This is a reversible modification operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_slack_reaction safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Freshdesk, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_slack_reaction, this is the rule to start with:

add_slack_reaction Rate-limited

add_slack_reaction 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": {
    "add_slack_reaction": {
      "limits": [
        {
          "counter": "add_slack_reaction_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Freshdesk, apply this rule, and every add_slack_reaction call is checked against it from then on.

FAQ

Questions about add_slack_reaction

What does the add_slack_reaction tool do? +

Add an emoji reaction to a Slack message as yourself. Get the message timestamp from get_slack_channel_history (use ts_slack value). Common reactions: thumbsup, thumbsdown, heart, eyes, white_check_mark, x. It is categorised as a Write tool in the Freshdesk MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_slack_reaction? +

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

What risk level is add_slack_reaction? +

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

Can I rate-limit add_slack_reaction? +

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

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

add_slack_reaction is provided by the Freshdesk MCP server (@mindstone-engineering/mcp-server-freshdesk). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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