Search through stored documentation using natural language queries. Use this tool to find relevant information across all stored documentation sources. Returns matching excerpts with context, ranked by relevance. Useful for finding specific information, code examples, or related documentation.
AI agents call search_documentation to retrieve information from RAG Documentation MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs semantic search and retrieval of existing documentation. It queries and returns information without creating, modifying, deleting, or executing anything. This is a classic Read operation with minimal security risk—the only concern would be unauthorized access to documentation content itself, but the tool has no capability to alter state or trigger external operations.
From the tool's definition Tool description states 'Search through stored documentation using natural language queries' and 'Returns matching excerpts with context, ranked by relevance.' This is a retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access search_documentation gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and RAG Documentation MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for search_documentation:
{
"version": "1",
"default": "deny",
"tools": {
"search_documentation": {}
}
}search_documentation is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search through stored documentation using natural language queries. Use this tool to find relevant information across all stored documentation sources. Returns matching excerpts with context, ranked by relevance. Useful for finding specific information, code examples, or related documentation. It is categorised as a Read tool in the RAG Documentation MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RAG Documentation MCP Server MCP server in PolicyLayer and add a rule for search_documentation: 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 RAG Documentation MCP Server. Nothing to install.
search_documentation 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 search_documentation 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 search_documentation. 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.
search_documentation is provided by the RAG Documentation MCP Server MCP server (rahulretnan/mcp-ragdocs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 RAG Documentation MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
14 RAG Documentation MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.