sunrise.compute

Astronomically compute sunrise, sunset, solar noon, and civil/nautical/astronomical twilights for a coord + date.

SERVERMcp SOURCE@2sio/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-2s-io-mcp/sunrise.compute.md

WHAT IT DOES

What sunrise.compute does on Mcp

AI agents call sunrise.compute to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why sunrise.compute is rated Low

This tool queries and returns calculated astronomical data (sunrise times, sunset times, solar noon, twilight phases) based on provided parameters. It has no side effects on data or systems—it performs a read-only computation and returns results. Despite the server's financial nature (pay-per-call USDC settlement), the tool itself performs only informational lookups and calculations.

From the tool's definition Tool 'sunrise.compute' performs astronomical calculations and retrieves computed sunrise/sunset times and twilight data based on coordinates and date inputs.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sunrise.compute safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sunrise.compute, this is the rule to start with:

sunrise.compute Allowed

sunrise.compute is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sunrise.compute": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every sunrise.compute call is checked against it from then on.

FAQ

Questions about sunrise.compute

What does the sunrise.compute tool do? +

Astronomically compute sunrise, sunset, solar noon, and civil/nautical/astronomical twilights for a coord + date. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on sunrise.compute? +

Register the MCP server in PolicyLayer and add a rule for sunrise.compute: 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. Nothing to install.

What risk level is sunrise.compute? +

sunrise.compute is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit sunrise.compute? +

Yes. Add a rate_limit block to the sunrise.compute 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.

How do I block sunrise.compute completely? +

Set action: deny in the PolicyLayer policy for sunrise.compute. 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.

What MCP server provides sunrise.compute? +

sunrise.compute is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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