Navigate to the definition of a symbol at the given position.
AI agents call 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 symbol resolution and navigation within a Java codebase, returning information about where a symbol is defined. It has no side effects, does not execute code, and does not modify any data. It is purely informational, similar to a search or lookup operation in an IDE. The action is deterministic and safe regardless of which symbol is queried.
From the tool's definition Tool name 'definition' and description 'Navigate to the definition of a symbol at the given position' indicate a read-only navigation operation that retrieves symbol location/metadata without modifying code or executing arbitrary operations.
Attacks that exploit this kind of access
Navigate to the 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 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.
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 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 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.
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.
Teams ship this data inside their own products. See what a licence covers →