Drill down into large responses
Part of the Mcp Croit Ceph server.
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AI agents call search_last_result to retrieve information from Mcp Croit Ceph without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though search_last_result only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"search_last_result": {}
}
}See the full Mcp Croit Ceph policy for all 9 tools.
These attack patterns abuse exactly the kind of access search_last_result gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Drill down into large responses. It is categorised as a Read tool in the Mcp Croit Ceph MCP Server, which means it retrieves data without modifying state.
Register the Mcp Croit Ceph MCP server in PolicyLayer and add a rule for search_last_result: 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 Croit Ceph. Nothing to install.
search_last_result 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 search_last_result 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 search_last_result. 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.
search_last_result is provided by the Mcp Croit Ceph MCP server (oci:docker.io/croit/mcp-croit-ceph:0.2.16). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 Mcp Croit Ceph tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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