AI agents call explore_repo to retrieve information from XRAY MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Based on the server's stated purpose and sibling tools, explore_repo appears to retrieve or navigate codebase structure without side effects, placing it in the Read category. Severity is medium because reading entire repository structures could potentially expose sensitive code or architectural details if an AI agent misuses access permissions, though the operation itself is non-destructive.
From the tool's definition Tool named 'explore_repo' on a code analysis server (XRAY MCP) that 'Enables AI assistants to understand and navigate codebases through structural analysis' and provides 'code mapping, symbol search, and impact analysis'.
Documented attack patterns abuse exactly the kind of access explore_repo gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and XRAY MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for explore_repo:
{
"version": "1",
"default": "deny",
"tools": {
"explore_repo": {}
}
}explore_repo is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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explore_repo. It is categorised as a Read tool in the XRAY MCP MCP Server, which means it retrieves data without modifying state.
Register the XRAY MCP server in PolicyLayer and add a rule for explore_repo: 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 XRAY MCP. Nothing to install.
explore_repo 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 explore_repo 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 explore_repo. 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.
explore_repo is provided by the XRAY MCP server (srijanshukla18/xray). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 4 XRAY MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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4 XRAY MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.