Navigate to the type definition of a symbol at the given position.
AI agents call type_definition to retrieve information from Jons Mcp Java without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs navigation/lookup to find the type definition of a symbol. It retrieves source location information without modifying any data or triggering side effects.
From the tool's definition Navigate to the type definition of a symbol at the given position
Attacks that exploit this kind of access
Navigate to the type definition of a symbol at the given position. It is categorised as a Read tool in the Jons Mcp Java MCP Server, which means it retrieves data without modifying state.
Register the Jons Mcp Java MCP server in PolicyLayer and add a rule for type_definition: 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 Jons Mcp Java. Nothing to install.
type_definition 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 type_definition 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 type_definition. 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.
type_definition is provided by the Jons Mcp Java MCP server (jonmmease/jons-mcp-java). 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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