Get real code examples from the LangChain GitHub repository
AI agents call get_github_examples to retrieve information from LangChain Documentation MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays existing code examples from a public repository. It performs no writes, deletes, executions, or financial transactions. The only potential risk is if returned code examples are subsequently executed by the user or agent, but that is a separate operation outside this tool's scope. The tool itself is purely informational/retrieval in nature.
From the tool's definition Tool description states 'Get real code examples from the LangChain GitHub repository' - a retrieval operation with no modification or execution capability.
Attacks that exploit this kind of access
Get real code examples from the LangChain GitHub repository. It is categorised as a Read tool in the LangChain Documentation MCP Server MCP Server, which means it retrieves data without modifying state.
Register the LangChain Documentation MCP Server MCP server in PolicyLayer and add a rule for get_github_examples: 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 LangChain Documentation MCP Server. Nothing to install.
get_github_examples 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_github_examples 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_github_examples. 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_github_examples is provided by the LangChain Documentation MCP Server MCP server (liteobject/langchain-mcp-server). 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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