spatial_nearby

THE RISK

Low Risk

Why spatial_nearby needs a policy

This tool queries spatial relationships between files in a codebase and returns ranked results. It performs information retrieval without modifying, deleting, or executing operations. The incomplete description ('ranked by' appears truncated) does not suggest any write, execute, or destructive capabilities. This is a straightforward read operation for navigating code relationships in the knowledge base.

From the tool's definition Tool name 'spatial_nearby' and description indicate it retrieves files 'topologically near a given file, ranked by' proximity—a query/search operation with no side effects.

Documented attack patterns abuse exactly the kind of access spatial_nearby gives an agent:

POLICY

How to control spatial_nearby

PolicyLayer is an MCP gateway — it sits between your AI agents and Codevira MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for spatial_nearby:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "spatial_nearby": {}
  }
}

spatial_nearby is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Codevira MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about spatial_nearby

What does the spatial_nearby tool do? +

v3.1.0 M4: Files topologically near a given file, ranked by. It is categorised as a Read tool in the Codevira MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on spatial_nearby? +

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

What risk level is spatial_nearby? +

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

Can I rate-limit spatial_nearby? +

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

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

spatial_nearby is provided by the Codevira MCP server (sachinshelke/codevira). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Codevira MCP tool call.

Start from Codevira MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →