dup_find_similar_blocks

Find similar code blocks across the codebase that could be consolidated

SERVERPlugin Hub SOURCE@barnburner121/plugin-hub-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/barnburner121-plugin-hub-mcp/dup-find-similar-blocks.md

WHAT IT DOES

What dup_find_similar_blocks does on Plugin Hub

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

RISK

Why dup_find_similar_blocks is rated Low

Even though dup_find_similar_blocks only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs dup_find_similar_blocks safely

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

dup_find_similar_blocks Allowed

dup_find_similar_blocks 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": {
    "dup_find_similar_blocks": {}
  }
}

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

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

FAQ

Questions about dup_find_similar_blocks

What does the dup_find_similar_blocks tool do? +

Find similar code blocks across the codebase that could be consolidated. It is categorised as a Read tool in the Plugin Hub MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on dup_find_similar_blocks? +

Register the Plugin Hub MCP server in PolicyLayer and add a rule for dup_find_similar_blocks: 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 Plugin Hub. Nothing to install.

What risk level is dup_find_similar_blocks? +

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

Can I rate-limit dup_find_similar_blocks? +

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

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

dup_find_similar_blocks is provided by the Plugin Hub MCP server (@barnburner121/plugin-hub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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