Payload schema
configobject
Reserved. Every host is born with {} today.
fallback(string | any[])[] | nulloptional
Where capability reads go on a local miss: an itx expression naming ONE other host — usually ["capabilityHosts", ["get", "/"]], the project root — or null, which ends resolution here. Recorded at birth and re-evaluated against this scope's own itx on every fallback read, so the expression is a durable name, never captured authority. Nullish only so pre-fallback birth certificates still parse; absent means null.
Raw JSON schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"config": {
"type": "object",
"properties": {},
"additionalProperties": false,
"description": "Reserved. Every host is born with {} today."
},
"fallback": {
"description": "Where capability reads go on a local miss: an itx expression naming ONE other host — usually [\"capabilityHosts\", [\"get\", \"/\"]], the project root — or null, which ends resolution here. Recorded at birth and re-evaluated against this scope's own itx on every fallback read, so the expression is a durable name, never captured authority. Nullish only so pre-fallback birth certificates still parse; absent means null.",
"anyOf": [
{
"minItems": 1,
"type": "array",
"items": {
"anyOf": [
{
"type": "string"
},
{
"type": "array",
"items": {}
}
]
}
},
{
"type": "null"
}
]
}
},
"required": [
"config"
],
"additionalProperties": false
}