List schools accessible to the calling token. Each token is bound to exactly one school, so this returns a single-item array. Useful for the AI to confirm which school it
AI agents call list_schools to retrieve information from Crescender MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about schools accessible to the current token. It performs no writes, deletions, code execution, or financial operations. The blast radius of misuse is minimal—an agent could only learn which school it has access to, which is likely non-sensitive metadata. The read-only nature of the server and the passive retrieval operation clearly place this in the Read category.
From the tool's definition Tool name 'list_schools' and description 'List schools accessible to the calling token' indicate a query/retrieval operation with no modification or side effects. The server is explicitly described as 'Read-only'.
Attacks that exploit this kind of access
List schools accessible to the calling token. Each token is bound to exactly one school, so this returns a single-item array. Useful for the AI to confirm which school it. It is categorised as a Read tool in the Crescender MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Crescender MCP Server MCP server in PolicyLayer and add a rule for list_schools: 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 Crescender MCP Server. Nothing to install.
list_schools 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 list_schools 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 list_schools. 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.
list_schools is provided by the Crescender MCP Server MCP server (lincalinca/crescender-mcp-server). 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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