List files changed in a PR with diff stats.
AI agents call list_pr_files to retrieve information from GitHub Repos Manager MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves information about files modified in a pull request, including diffstat metadata. It performs no mutations, deletions, or external operations. It is a straightforward read operation on existing GitHub PR data.
From the tool's definition The tool name 'list_pr_files' and description 'List files changed in a PR with diff stats' clearly indicate retrieval of PR information with no side effects. The verb 'list' and 'diff stats' are query operations that return data without modification.
Documented attack patterns abuse exactly the kind of access list_pr_files gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and GitHub Repos Manager MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_pr_files:
{
"version": "1",
"default": "deny",
"tools": {
"list_pr_files": {}
}
} list_pr_files is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List files changed in a PR with diff stats. It is categorised as a Read tool in the GitHub Repos Manager MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GitHub Repos Manager MCP Server MCP server in PolicyLayer and add a rule for list_pr_files: 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 GitHub Repos Manager MCP Server. Nothing to install.
list_pr_files 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 list_pr_files 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 list_pr_files. 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.
list_pr_files is provided by the GitHub Repos Manager MCP Server MCP server (kurdin/github-repos-manager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from GitHub Repos Manager MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
84 GitHub Repos Manager MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.