alter the description of get-me to reduce redundant repeat calls

Author: SamMorrowDrums

pkg/github/context_tools.go

@@ -15,7 +15,7 @@ import (
 // GetMe creates a tool to get details of the authenticated user.
 func GetMe(getClient GetClientFn, t translations.TranslationHelperFunc) (tool mcp.Tool, handler server.ToolHandlerFunc) {
 	return mcp.NewTool("get_me",
-			mcp.WithDescription(t("TOOL_GET_ME_DESCRIPTION", "Get details of the authenticated GitHub user. Use this when a request include \"me\", \"my\"...")),
+			mcp.WithDescription(t("TOOL_GET_ME_DESCRIPTION", "Get details of the authenticated GitHub user. Use this when a request include \"me\", \"my\"... the output will not change unless the user changes their profile, so only call this once.")),
 			mcp.WithToolAnnotation(mcp.ToolAnnotation{
 				Title:        t("TOOL_GET_ME_USER_TITLE", "Get my user profile"),
 				ReadOnlyHint: toBoolPtr(true),