MCP Claude Code

15 tools. 10 can modify or destroy data without limits.

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

Last updated:

10 can modify or destroy data
5 read-only
15 tools total

Community server · catalogue entry verified 26/06/2026

How to control MCP Claude Code ↓

What MCP Claude Code exposes to your agents

Read (5) Write / Execute (9) Destructive / Financial (0)
High Risk

The most dangerous MCP Claude Code tools

10 of MCP Claude Code's 15 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

How to control MCP Claude Code

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

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

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations
{
  "directory_tree": {
    "limits": [
      {
        "counter": "directory_tree_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 MCP Claude Code — 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 MCP CLAUDE CODE →

Instant setup, no code required.

All 15 MCP Claude Code tools

Questions about MCP Claude Code

How do I prevent bulk modifications through MCP Claude Code? +

The MCP Claude Code server has 7 write tools including content_replace, edit, grep_ast. 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 MCP Claude Code.

How many tools does the MCP Claude Code MCP server expose? +

15 tools across 2 categories: Read, Write. 5 are read-only. 10 can modify, create, or delete data.

How do I enforce a policy on MCP Claude Code? +

Register the MCP Claude Code 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 MCP Claude Code tool call.

Deterministic rules across all 15 MCP Claude Code tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Instant setup, no code required.

15 MCP Claude Code tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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