Find potentially unused/dead code — symbols that are never called or referenced by other symbols. Useful for cleanup tasks.
AI agents call codexray_deadcode to retrieve information from CodeXRay without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs static analysis and querying of code structure to identify dead code patterns. It has no side effects, does not execute code, does not modify data, and does not delete anything. The mention of 'useful for cleanup tasks' refers to potential use cases (where humans would then manually act), not automated destructive actions by the tool itself. This is purely informational Read access to code metadata.
From the tool's definition Tool name 'codexray_deadcode' and description state it 'find[s] potentially unused/dead code — symbols that are never called or referenced'.
Documented attack patterns abuse exactly the kind of access codexray_deadcode gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and CodeXRay, and nothing reaches the server without passing your rules. This is the rule we recommend for codexray_deadcode:
{
"version": "1",
"default": "deny",
"tools": {
"codexray_deadcode": {}
}
}codexray_deadcode is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Find potentially unused/dead code — symbols that are never called or referenced by other symbols. Useful for cleanup tasks. It is categorised as a Read tool in the CodeXRay MCP Server, which means it retrieves data without modifying state.
Register the CodeXRay MCP server in PolicyLayer and add a rule for codexray_deadcode: 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 CodeXRay. Nothing to install.
codexray_deadcode is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the codexray_deadcode 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.
Set action: deny in the PolicyLayer policy for codexray_deadcode. 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.
codexray_deadcode is provided by the CodeXRay MCP server (neuralrays/codexray). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from CodeXRay, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
16 CodeXRay tools catalogued and risk-classified — across an index of 43,000+ MCP servers.