asteroid_close_approaches
skypeek: List asteroid and comet close approaches to Earth. For space weather use get_space_weather. Returns near-Earth object close approaches to Earth in the next 1-30 days within a miss distance (default 0.05 au, about 19.5 lunar distances): designation, approach time, nominal distance with it...
This record as markdown: /tools/dev-tanod-tanod/asteroid-close-approaches.md
What asteroid_close_approaches does on Tanod
AI agents use asteroid_close_approaches to create or update resources in Tanod, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Tanod environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
days | integer | — | Look-ahead window in days (1-30). |
dist_max_au | number | — | Largest nominal miss distance in au (0.0001-0.2; 0.05 au is about 19.5 lunar distances). |
Parameters from the server's own tool schema.
Why asteroid_close_approaches is rated Medium
An AI agent can call asteroid_close_approaches faster than any human can review: one bad instruction and it creates or modifies resources in Tanod by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
The rule that runs asteroid_close_approaches safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Tanod, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For asteroid_close_approaches, this is the rule to start with:
asteroid_close_approaches stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Tanod, apply this rule, and every asteroid_close_approaches call is checked against it from then on.
Questions about asteroid_close_approaches
skypeek: List asteroid and comet close approaches to Earth. For space weather use get_space_weather. Returns near-Earth object close approaches to Earth in the next 1-30 days within a miss distance (default 0.05 au, about 19.5 lunar distances): designation, approach time, nominal distance with its 3-sigma range, relative velocity, absolute magnitude and diameter (published or a rough range). Data: NASA/JPL Solar System Dynamics close-approach API (US Government work); no endorsement by NASA or JPL is implied. At most 100 approaches per answer. Not an impact-risk assessment. Cached up to an hour. An upstream outage is a 503 upstream_unavailable (not charged). Typically under 1 s. Price: USD 0.001. Free: 5 skypeek calls per IP per UTC day. Docs: https://tanod.dev/learn/asteroid-close-approach-api.html. It is categorised as a Write tool in the Tanod MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
asteroid_close_approaches accepts 2 parameters: days, dist_max_au. The full parameter table on this page comes from the server's own tool schema.
Register the Tanod MCP server in PolicyLayer and add a rule for asteroid_close_approaches: 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 Tanod. Nothing to install.
asteroid_close_approaches is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the asteroid_close_approaches 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 asteroid_close_approaches. 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.
asteroid_close_approaches is provided by the Tanod MCP server (https://tanod.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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