slack_search_messages

A read tool on the Integrations MCP server.

SERVERIntegrations MCP SOURCEshriram-vasudevan/integrations-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/shriram-vasudevan-integrations-mcp/slack-search-messages.md

WHAT IT DOES

What slack_search_messages does on Integrations MCP

AI agents call slack_search_messages to retrieve information from Integrations MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why slack_search_messages is rated Low

The tool queries Slack messages to retrieve information. Search operations are read-only—they retrieve data without side effects. No creation, modification, deletion, or code execution is implied. Even though the description is empty, the name unambiguously indicates a data retrieval operation.

From the tool's definition Tool name 'slack_search_messages' indicates a search operation that queries and retrieves existing messages without modifying, deleting, or executing actions. The 'search' verb combined with 'messages' is a classic read pattern.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs slack_search_messages safely

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

slack_search_messages Allowed

slack_search_messages is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "slack_search_messages": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about slack_search_messages

What does the slack_search_messages tool do? +

slack_search_messages is a read tool on the Integrations MCP server. It is categorised as a Read tool in the Integrations MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on slack_search_messages? +

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

What risk level is slack_search_messages? +

slack_search_messages is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit slack_search_messages? +

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

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

slack_search_messages is provided by the Integrations MCP server (shriram-vasudevan/integrations-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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