Return definition locations for the identifier at a zero-based LSP position.
AI agents call lsp_definition to retrieve information from Syntax Map without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a pure information retrieval operation—it queries the syntax tree or index to locate where a symbol is defined, analogous to IDE 'Go to Definition' features. It has no side effects, does not execute code, does not modify files, and does not delete data. The lowest-severity Read category is appropriate.
From the tool's definition Tool returns definition locations for an identifier at a given LSP position. This is a lookup/query operation ('Return definition locations') with no modification of code or execution of arbitrary logic.
Attacks that exploit this kind of access
Return definition locations for the identifier at a zero-based LSP position. It is categorised as a Read tool in the Syntax Map MCP Server, which means it retrieves data without modifying state.
Register the Syntax Map MCP server in PolicyLayer and add a rule for lsp_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 Syntax Map. Nothing to install.
lsp_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 lsp_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 lsp_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.
lsp_definition is provided by the Syntax Map MCP server (kht6163/syntax-map-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
lsp_definition is one line of Syntax Map's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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