next_runs
AI agents call next_runs to retrieve information from Mcp Crontab without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves calculated future execution times for cron entries—a read-only query operation with no side effects. The empty description lowers confidence slightly, but the name and server context strongly indicate it forecasts when cron jobs will run next, which is informational only. No data modification, execution, or financial impact possible.
From the tool's definition Tool name 'next_runs' with context of crontab management server that includes calculation of 'upcoming execution times' as per server description.
Attacks that exploit this kind of access
next_runs. It is categorised as a Read tool in the Mcp Crontab MCP Server, which means it retrieves data without modifying state.
Register the Mcp Crontab MCP server in PolicyLayer and add a rule for next_runs: 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 Crontab. Nothing to install.
next_runs 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 next_runs 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 next_runs. 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.
next_runs is provided by the Mcp Crontab MCP server (jasona7/mcp-crontab-server). 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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