Find all references to the symbol at the given position.
AI agents call references 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 analysis and reference discovery within a Java workspace using Eclipse JDT.LS. It reads and searches existing code metadata to locate all usages of a symbol, with no side effects, no code execution, and no data modification. This is a standard read-only developer tool for code navigation and understanding.
From the tool's definition Tool description states 'Find all references to the symbol at the given position' — a pure query operation that retrieves information about code references without modifying or executing anything.
Attacks that exploit this kind of access
Find all references to the 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 references: 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.
references 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 references 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 references. 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.
references 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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