// MCP TOOL REFERENCE

delete_mcp_json

Delete an MCP JSON configuration by its ID. This action is irreversible. Use cases: - Remove obsolete configurations - Clean up test data - Remove incorrectly created configurations

ServerPlaywright Stealth
CategoryDestructive

How to control delete_mcp_json ↓

WHAT IT DOES

What delete_mcp_json does on Playwright Stealth

AI agents call delete_mcp_json to permanently remove resources in Playwright Stealth — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

THE RISK

Critical Risk

Why delete_mcp_json needs a policy

The tool performs irreversible deletion of configuration data. The description explicitly states 'This action is irreversible,' which matches the Destructive category definition (irreversibly deletes or overwrites data, or actions that cannot be undone).

From the tool's definition delete_mcp_json: 'Delete an MCP JSON configuration by its ID. This action is irreversible.'

Documented attack patterns abuse exactly the kind of access delete_mcp_json gives an agent:

POLICY

How to control delete_mcp_json

PolicyLayer is an MCP gateway — it sits between your AI agents and Playwright Stealth, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_mcp_json:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_mcp_json"
  ]
}

delete_mcp_json disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Playwright Stealth — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Playwright Stealth tools

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All 68 Playwright Stealth tools →

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Go deeper

Critical-risk tools in Playwright Stealth → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about delete_mcp_json

What does the delete_mcp_json tool do? +

Delete an MCP JSON configuration by its ID. This action is irreversible. Use cases: - Remove obsolete configurations - Clean up test data - Remove incorrectly created configurations. It is categorised as a Destructive tool in the Playwright Stealth MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_mcp_json? +

Register the Playwright Stealth MCP server in PolicyLayer and add a rule for delete_mcp_json: 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 Playwright Stealth. Nothing to install.

What risk level is delete_mcp_json? +

delete_mcp_json is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_mcp_json? +

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

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

delete_mcp_json is provided by the Playwright Stealth MCP server (pulsemcp/mcp-servers). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Playwright Stealth tool call.

Start from Playwright Stealth, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →

Free to start. No card required.

68 Playwright Stealth tools catalogued and risk-classified — across an index of 43,000+ MCP servers.