Calculate a chaos score that combines Bitcoin volatility, ISS orbital position, global temperatures, earthquake activity, and lunar phase. Returns a single chaos index (0-100) plus breakdown of each component's contribution.
Part of the Chaos Index server.
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AI agents call chaos_index_calculate to retrieve information from Chaos Index 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 chaos_index_calculate 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": {
"chaos_index_calculate": {}
}
}See the full Chaos Index policy for all 21 tools.
These attack patterns abuse exactly the kind of access chaos_index_calculate 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.
Calculate a chaos score that combines Bitcoin volatility, ISS orbital position, global temperatures, earthquake activity, and lunar phase. Returns a single chaos index (0-100) plus breakdown of each component's contribution.. It is categorised as a Read tool in the Chaos Index MCP Server, which means it retrieves data without modifying state.
Register the Chaos Index MCP server in PolicyLayer and add a rule for chaos_index_calculate: 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 Chaos Index. Nothing to install.
chaos_index_calculate 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 chaos_index_calculate 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 chaos_index_calculate. 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.
chaos_index_calculate is provided by the Chaos Index MCP server (https://gateway.pipeworx.io/chaos-index/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 21 Chaos Index tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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