Detect technology stacks in a directory
AI agents call detect_stacks to retrieve information from Code Search MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and analyzes the technology composition of a codebase (frameworks, libraries, language versions, etc.) but does not execute code, modify files, delete data, or perform financial operations. It is purely informational and has no side effects on the system or data.
From the tool's definition Tool performs detection/analysis of technology stacks in a directory—a read-only operation that retrieves information about existing dependencies and frameworks without modifying, executing, or deleting anything.
Attacks that exploit this kind of access
Detect technology stacks in a directory. It is categorised as a Read tool in the Code Search MCP MCP Server, which means it retrieves data without modifying state.
Register the Code Search MCP server in PolicyLayer and add a rule for detect_stacks: 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 Code Search MCP. Nothing to install.
detect_stacks 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 detect_stacks 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 detect_stacks. 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.
detect_stacks is provided by the Code Search MCP server (llmtooling/code-search-mcp). 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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