// SCAN REPORT

Slack Notifier MCP

3 tools. 1 can modify or destroy data without limits.

1 write tool that can modify data. Rate limits recommended.

Last updated: 3 Jul 2026

1 can modify or destroy data

2 read-only

3 tools total

Community server · catalogue entry verified 03/07/2026

How to control Slack Notifier MCP ↓

TOOL MAP

What Slack Notifier MCP exposes to your agents

Read (2) Write / Execute (1) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous Slack Notifier MCP tools

Write · Medium send This tool creates/posts messages to Slack, which is reversible data creation (messages can be edited or deleted).

1 of Slack Notifier MCP's 3 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Slack Notifier MCP

PolicyLayer is an MCP gateway — it sits between your AI agents and Slack Notifier MCP, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "send": {
    "limits": [
      {
        "counter": "send_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "ask_user": {
    "limits": [
      {
        "counter": "ask_user_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Slack Notifier MCP — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON SLACK NOTIFIER →

Instant setup, no code required.

FULL CATALOGUE

All 3 Slack Notifier MCP tools

WRITE 1 tools

Write send send

READ 2 tools

Read ask_user ask_user Read get_thread_replies get_thread_replies

FAQ

Questions about Slack Notifier MCP

How do I prevent bulk modifications through Slack Notifier MCP? +

The Slack Notifier MCP server has 1 write tools including send. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Slack Notifier MCP.

How many tools does the Slack Notifier MCP server expose? +

3 tools across 2 categories: Read, Write. 2 are read-only. 1 can modify, create, or delete data.

How do I enforce a policy on Slack Notifier MCP? +

Register the Slack Notifier MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Slack Notifier MCP tool call.

Deterministic rules across all 3 Slack Notifier MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON SLACK NOTIFIER →

Instant setup, no code required.

3 Slack Notifier MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.