List all registered protocol handlers
AI agents call get_protocol_handlers to retrieve information from JS-Peer x DeFi 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 and lists existing protocol handlers without creating, modifying, deleting, or executing any code. It is a straightforward data retrieval operation, characteristic of Read category tools. The blast radius is minimal—an agent obtaining this information cannot directly harm systems or cause financial loss.
From the tool's definition Tool name 'get_protocol_handlers' with description 'List all registered protocol handlers' performs a read-only query operation with no side effects.
Attacks that exploit this kind of access
List all registered protocol handlers. It is categorised as a Read tool in the JS-Peer x DeFi MCP Server MCP Server, which means it retrieves data without modifying state.
Register the JS-Peer x DeFi MCP Server MCP server in PolicyLayer and add a rule for get_protocol_handlers: 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 JS-Peer x DeFi MCP Server. Nothing to install.
get_protocol_handlers 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_protocol_handlers 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_protocol_handlers. 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_protocol_handlers is provided by the JS-Peer x DeFi MCP Server MCP server (nkovaturient/js-peer-mcp). 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.
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