Answer structural questions about the codebase.
AI agents call repomap_query to retrieve information from RepoMap without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes codebase metadata (symbols, dependencies, relationships) to answer questions about code structure. It has no described capability to modify, delete, or execute code. Even if queried by a misbehaving AI agent, the worst outcome is returning incorrect or excessive information about the codebase—a read-only impact with low blast radius.
From the tool's definition Tool name 'repomap_query' and description 'Answer structural questions about the codebase' indicate querying/analysis of code structure without modification. The verb 'Answer' and 'query' are characteristic of read-only operations.
Documented attack patterns abuse exactly the kind of access repomap_query gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and RepoMap, and nothing reaches the server without passing your rules. This is the rule we recommend for repomap_query:
{
"version": "1",
"default": "deny",
"tools": {
"repomap_query": {}
}
}repomap_query is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Answer structural questions about the codebase. It is categorised as a Read tool in the RepoMap MCP Server, which means it retrieves data without modifying state.
Register the RepoMap MCP server in PolicyLayer and add a rule for repomap_query: 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 RepoMap. Nothing to install.
repomap_query 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 repomap_query 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 repomap_query. 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.
repomap_query is provided by the RepoMap MCP server (tusharkarkera22/repomap-ai). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from RepoMap, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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6 RepoMap tools catalogued and risk-classified — across an index of 43,000+ MCP servers.