Read the contents of a file from a GitHub repository
AI agents call read_github_file to retrieve information from Code Search, Read & PR Analysis without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves file content from a GitHub repository without creating, modifying, deleting, or executing any code. It is a pure read operation. The low severity reflects that it only exposes already-public repository content (GitHub repositories are typically public or access-controlled at the GitHub level, not by the MCP server).
From the tool's definition Tool name 'read_github_file' and description 'Read the contents of a file from a GitHub repository' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Read the contents of a file from a GitHub repository. It is categorised as a Read tool in the Code Search, Read & PR Analysis MCP Server, which means it retrieves data without modifying state.
Register the Code Search, Read & PR Analysis MCP server in PolicyLayer and add a rule for read_github_file: 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, Read & PR Analysis. Nothing to install.
read_github_file 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 read_github_file 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 read_github_file. 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.
read_github_file is provided by the Code Search, Read & PR Analysis MCP server (tuanpham197/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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