check_duplication

Check if a function/class name already exists before creating it. Pass

SERVERTrace SOURCEnikolai-vysotskyi/trace-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/nikolai-vysotskyi-trace-mcp/check-duplication.md

WHAT IT DOES

What check_duplication does on Trace

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

RISK

Why check_duplication is rated Low

Tool queries codebase to verify naming conflicts; read-only with no side effects.

From the tool's definition Check if a function/class name already exists before creating it.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_duplication safely

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

check_duplication Allowed

check_duplication 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": {
    "check_duplication": {}
  }
}

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

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

FAQ

Questions about check_duplication

What does the check_duplication tool do? +

Check if a function/class name already exists before creating it. Pass. It is categorised as a Read tool in the Trace MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_duplication? +

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

What risk level is check_duplication? +

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

Can I rate-limit check_duplication? +

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

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

check_duplication is provided by the Trace MCP server (nikolai-vysotskyi/trace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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