List the names of every skill page shipped by crossref-local.
AI agents call crossref_local_skills_list to retrieve information from Crossref Local without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about available skills without querying data, modifying state, executing arbitrary commands, or affecting external systems. It is a straightforward informational read operation with minimal blast radius if misused by an AI agent.
From the tool's definition Tool name 'list' and description explicitly states 'List the names of every skill page' — a retrieval operation with no modification, deletion, or execution of external code.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access crossref_local_skills_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Crossref Local, and nothing reaches the server without passing your rules. This is the rule we recommend for crossref_local_skills_list:
{
"version": "1",
"default": "deny",
"tools": {
"crossref_local_skills_list": {}
}
}crossref_local_skills_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List the names of every skill page shipped by crossref-local. It is categorised as a Read tool in the Crossref Local MCP Server, which means it retrieves data without modifying state.
Register the Crossref Local MCP server in PolicyLayer and add a rule for crossref_local_skills_list: 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 Crossref Local. Nothing to install.
crossref_local_skills_list 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 crossref_local_skills_list 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 crossref_local_skills_list. 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.
crossref_local_skills_list is provided by the Crossref Local MCP server (ywatanabe1989/crossref-local). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Crossref Local, 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.
17 Crossref Local tools catalogued and risk-classified — across an index of 43,000+ MCP servers.