Bark

3 tools. 2 can modify or destroy data without limits.

2 write tools that can modify data. Rate limits recommended.

Last updated:

2 can modify or destroy data
1 read-only
3 tools total

Community server · catalogue entry verified 29/06/2026

How to control Bark ↓

What Bark exposes to your agents

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

The most dangerous Bark tools

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

How to control Bark

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

Rate limit write operations
{
  "send_bark_batch_notifications": {
    "limits": [
      {
        "counter": "send_bark_batch_notifications_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations
{
  "check_bark_server_health": {
    "limits": [
      {
        "counter": "check_bark_server_health_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

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

  1. Create a free account and register Bark — nothing to install.
  2. Add these rules — paste them, or build them visually. Tune the limits to your setup.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
ENFORCE POLICY ON BARK →

Instant setup, no code required.

All 3 Bark tools

Questions about Bark

How do I prevent bulk modifications through Bark? +

The Bark server has 1 write tools including send_bark_batch_notifications. 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 Bark.

How many tools does the Bark MCP server expose? +

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

How do I enforce a policy on Bark? +

Register the Bark 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 Bark tool call.

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

Instant setup, no code required.

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

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