Get detailed information for a specific Grafana OnCall shift
AI agents call get_oncall_shift to retrieve information from Mcp Grafana without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves existing oncall shift data without creating, modifying, deleting, or executing any operations. It has no side effects and poses minimal security risk as it only queries information that oncall users would typically have authorization to view.
From the tool's definition Tool name is 'get_oncall_shift' and description states 'Get detailed information for a specific Grafana OnCall shift' — the verb 'Get' and action of retrieving information with no modification capability indicate a read-only operation.
Attacks that exploit this kind of access
Get detailed information for a specific Grafana OnCall shift. It is categorised as a Read tool in the Mcp Grafana MCP Server, which means it retrieves data without modifying state.
Register the Mcp Grafana MCP server in PolicyLayer and add a rule for get_oncall_shift: 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 Grafana. Nothing to install.
get_oncall_shift 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_oncall_shift 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_oncall_shift. 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_oncall_shift is provided by the Mcp Grafana MCP server (@leval/mcp-grafana). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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