AI agents call get_symbol to retrieve information from Srclight without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries symbol information from an indexed codebase with no indicated side effects. It fits the 'Read' category as it performs data retrieval without modifying state. Low severity because misuse by an AI agent would only expose existing code information, not trigger external operations or data loss.
From the tool's definition Tool named 'get_symbol' in a code indexing service described as enabling 'Search symbols, navigate call graphs, explore inheritance, track git history'.
Documented attack patterns abuse exactly the kind of access get_symbol gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Srclight, and nothing reaches the server without passing your rules. This is the rule we recommend for get_symbol:
{
"version": "1",
"default": "deny",
"tools": {
"get_symbol": {}
}
}get_symbol is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_symbol. It is categorised as a Read tool in the Srclight MCP Server, which means it retrieves data without modifying state.
Register the Srclight MCP server in PolicyLayer and add a rule for get_symbol: 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 Srclight. Nothing to install.
get_symbol 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 get_symbol 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 get_symbol. 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.
get_symbol is provided by the Srclight MCP server (srclight/srclight). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 42 Srclight tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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42 Srclight tools catalogued and risk-classified — across an index of 42,500+ MCP servers.