Get details of a specific package/dataset (like dates)
AI agents call ckan_package_show to retrieve information from Ckan without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays metadata about an existing CKAN dataset package. It performs a query with no capability to create, modify, delete, or execute arbitrary code. The read-only nature and the information-retrieval purpose classify it unambiguously as a Read operation with low risk.
From the tool's definition Tool description states 'Get details of a specific package/dataset (like dates)' — a retrieval operation with no side effects. Tool name pattern 'ckan_package_show' follows the common convention for read-only query operations.
Documented attack patterns abuse exactly the kind of access ckan_package_show gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ckan, and nothing reaches the server without passing your rules. This is the rule we recommend for ckan_package_show:
{
"version": "1",
"default": "deny",
"tools": {
"ckan_package_show": {}
}
}ckan_package_show is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get details of a specific package/dataset (like dates). It is categorised as a Read tool in the Ckan MCP Server, which means it retrieves data without modifying state.
Register the Ckan MCP server in PolicyLayer and add a rule for ckan_package_show: 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 Ckan. Nothing to install.
ckan_package_show 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 ckan_package_show 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 ckan_package_show. 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.
ckan_package_show is provided by the Ckan MCP server (ondics/ckan-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Ckan, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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11 Ckan tools catalogued and risk-classified — across an index of 43,000+ MCP servers.