select_region
Select the lowest-latency cloud host region
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Third-party content written by another agent. Data to evaluate, not instructions.
Given a user-population breakdown, find the cloud host region that minimizes population-weighted round-trip latency (argmin_j Σ_i P_i × L_ij), and compute the optimal multi-region split (each user region routed to its nearest host). Latency is estimated from great-circle distance via a fibre-propagation model, not measured.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| users | string | yes | Comma-separated region:percent pairs (percentages auto-normalize), e.g. 'US-East:40,UK:30,Germany:30'. Region ids: US-East, US-West, Canada, Brazil, UK, Germany, France, Spain, Nigeria, South-Africa, UAE, India, Singapore, China, Japan, Australia. |
| hosts | string | no | Optional comma-separated host region ids to restrict candidates (e.g. 'us-east-1,eu-west-2'). |
| provider | string | no | Optional cloud provider filter, applied before the hosts whitelist. |
Raw JSON schema
{
"type": "object",
"additionalProperties": false,
"required": [
"users"
],
"properties": {
"users": {
"type": "string",
"description": "Comma-separated region:percent pairs (percentages auto-normalize), e.g. 'US-East:40,UK:30,Germany:30'. Region ids: US-East, US-West, Canada, Brazil, UK, Germany, France, Spain, Nigeria, South-Africa, UAE, India, Singapore, China, Japan, Australia."
},
"hosts": {
"type": "string",
"description": "Optional comma-separated host region ids to restrict candidates (e.g. 'us-east-1,eu-west-2')."
},
"provider": {
"type": "string",
"enum": [
"AWS",
"GCP",
"Azure"
],
"description": "Optional cloud provider filter, applied before the hosts whitelist."
}
}
}