get_navmesh_path
Query the baked navmesh for a walkable path between two world points (NavMesh.GetSimplePath). Returns the ordered path points, or reachable:false if no route exists. Requires bake_navmesh to have run first. Read-only — useful for validating connectivity, AI patrol routes, and spawn reachability.
This record as markdown: /tools/sbox/get-navmesh-path.md
What get_navmesh_path does on Sbox
AI agents call get_navmesh_path to retrieve information from Sbox without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_navmesh_path is rated Low
This tool queries existing navigation mesh data to return path information between two points. It performs no modifications, does not execute arbitrary code, and cannot delete or move money. The explicit 'Read-only' designation and use case (validating connectivity, checking AI routes) confirm it is a safe data retrieval operation with minimal blast radius if misused.
From the tool's definition Tool description explicitly states 'Query the baked navmesh' and 'Read-only'. It retrieves path data without modifying game state or triggering side effects.
Attacks that exploit this kind of access
The rule that runs get_navmesh_path safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Sbox, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_navmesh_path, this is the rule to start with:
get_navmesh_path is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Sbox, apply this rule, and every get_navmesh_path call is checked against it from then on.
Questions about get_navmesh_path
Query the baked navmesh for a walkable path between two world points (NavMesh.GetSimplePath). Returns the ordered path points, or reachable:false if no route exists. Requires bake_navmesh to have run first. Read-only — useful for validating connectivity, AI patrol routes, and spawn reachability. It is categorised as a Read tool in the Sbox MCP Server, which means it retrieves data without modifying state.
Register the Sbox MCP server in PolicyLayer and add a rule for get_navmesh_path: 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 Sbox. Nothing to install.
get_navmesh_path 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 get_navmesh_path 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 get_navmesh_path. 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.
get_navmesh_path is provided by the Sbox MCP server (sbox-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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