AI agents call github_get_file_content to retrieve information from Sage MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward data retrieval operation. It fetches and returns file content from a repository without creating, modifying, deleting, or executing anything. The action is read-only and has no side effects. The blast radius of misuse is low—an AI agent could only gain access to files it is authenticated to view, which poses minimal risk compared to write, execute, or destructive operations.
From the tool's definition Tool name 'github_get_file_content' and description 'Get the content of a file from a repository' indicate data retrieval with no modification or side effects.
Documented attack patterns abuse exactly the kind of access github_get_file_content gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sage MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for github_get_file_content:
{
"version": "1",
"default": "deny",
"tools": {
"github_get_file_content": {}
}
}github_get_file_content is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the content of a file from a repository. It is categorised as a Read tool in the Sage MCP MCP Server, which means it retrieves data without modifying state.
Register the Sage MCP server in PolicyLayer and add a rule for github_get_file_content: 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 Sage MCP. Nothing to install.
github_get_file_content 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 github_get_file_content 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 github_get_file_content. 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.
github_get_file_content is provided by the Sage MCP server (sagemcp/sagemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 359 Sage MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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359 Sage MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.