Get coupling metrics for all packages
AI agents call get_package_coupling_metrics to retrieve information from MCP Code Analysis 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 queries existing coupling metrics data. It performs read-only analysis operations with no side effects, no code execution, no data modification, and no destructive actions. The metrics are derived from static code analysis rather than executed operations. Risk is minimal as long as metrics data itself is not sensitive.
From the tool's definition Tool name 'get_package_coupling_metrics' uses 'get' verb and description states 'Get coupling metrics' — both indicate data retrieval with no modification or execution. The tool retrieves pre-computed metrics about package coupling in a codebase.
Documented attack patterns abuse exactly the kind of access get_package_coupling_metrics gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Code Analysis Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_package_coupling_metrics:
{
"version": "1",
"default": "deny",
"tools": {
"get_package_coupling_metrics": {}
}
} get_package_coupling_metrics is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get coupling metrics for all packages. It is categorised as a Read tool in the MCP Code Analysis Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Code Analysis Server MCP server in PolicyLayer and add a rule for get_package_coupling_metrics: 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 MCP Code Analysis Server. Nothing to install.
get_package_coupling_metrics 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_package_coupling_metrics 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_package_coupling_metrics. 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_package_coupling_metrics is provided by the MCP Code Analysis Server MCP server (johannhartmann/mcpcodeanalysis). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Code Analysis 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.
44 MCP Code Analysis Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.