Search for symbols (classes, functions, variables) across the workspace. Instant semantic search - finds exact matches unlike text-based grep
AI agents call symbolSearch to retrieve information from MCP Server for VS Code without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves symbol information from the workspace for search purposes. It performs semantic analysis to locate definitions but does not execute code, modify files, delete data, or trigger external operations. The operation is read-only with no side effects, matching the Read category definition.
From the tool's definition Tool name 'symbolSearch' and description 'Search for symbols (classes, functions, variables) across the workspace' indicates a query/search operation with no modification or execution of code.
Documented attack patterns abuse exactly the kind of access symbolSearch gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Server for VS Code, and nothing reaches the server without passing your rules. This is the rule we recommend for symbolSearch:
{
"version": "1",
"default": "deny",
"tools": {
"symbolSearch": {}
}
}symbolSearch is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search for symbols (classes, functions, variables) across the workspace. Instant semantic search - finds exact matches unlike text-based grep. It is categorised as a Read tool in the MCP Server for VS Code MCP Server, which means it retrieves data without modifying state.
Register the MCP Server for VS Code MCP server in PolicyLayer and add a rule for symbolSearch: 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 MCP Server for VS Code. Nothing to install.
symbolSearch 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 symbolSearch 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 symbolSearch. 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.
symbolSearch is provided by the MCP Server for VS Code MCP server (malvex/mcp-server-vscode). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Server for VS Code, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
25 MCP Server for VS Code tools catalogued and risk-classified — across an index of 43,000+ MCP servers.