Plan a comprehensive journey with step-by-step instructions, route visualization, and contextual information
AI agents call plan_comprehensive_journey to retrieve information from Singapore Location Intelligence MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Journey planning tools query transport data, compute routes, and return informational results. They do not modify data, execute commands, or trigger external operations. The tool fits squarely in the Read category, consistent with sibling tools like get_bus_arrival, get_traffic_conditions, and resolve_postal_code which are all read-only data retrieval operations.
From the tool's definition 'Plan a comprehensive journey with step-by-step instructions, route visualization, and contextual information' — this is a planning/query operation that retrieves routing data and presents it to the user.
Attacks that exploit this kind of access
Plan a comprehensive journey with step-by-step instructions, route visualization, and contextual information. It is categorised as a Read tool in the Singapore Location Intelligence MCP MCP Server, which means it retrieves data without modifying state.
Register the Singapore Location Intelligence MCP server in PolicyLayer and add a rule for plan_comprehensive_journey: 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 Singapore Location Intelligence MCP. Nothing to install.
plan_comprehensive_journey 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 plan_comprehensive_journey 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 plan_comprehensive_journey. 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.
plan_comprehensive_journey is provided by the Singapore Location Intelligence MCP server (siva-sub/mcp-public-transport). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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