TCS taxonomy v0.8
Transfer custody
Experimental: structure may change in a subsequent edition. This page is pinned to v0.8.
Hand a prop or packet to a declared participant
Source fragment
The following is documentation data, not a standalone document or validation schema. Resolve references against the original source schema.
{
"id": "transfer-custody",
"description": "Hand a prop or packet to a declared participant",
"labels": {
"en": "Transfer custody",
"es": "Transferir custodia",
"fr": "Transférer la garde",
"de": "Besitz übertragen"
},
"family_ref": "true-handling",
"action_contract": {
"parameters": {
"recipient_ref": {
"required": true,
"description": "Participant id in the TAM-45 shared namespace",
"domain": "string"
},
"position": {
"required": false,
"description": "Named location for the transferred prop or packet",
"domain": "string"
}
},
"post_state_invariant": "After this action, the target's custody — state.possession for a whole prop, or the containing packet's custodian_ref (TAM-44/53) — equals recipient_ref. No card order, identity or per-card physical state changes.",
"post_state": {
"state_schema_ref": "https://tamaraspec.org/schema/tcs-playing-cards-state-0.1.json",
"effects": [
{
"op": "set_custody",
"subject": "target",
"value": {
"param": "recipient_ref"
}
}
]
},
"boundary_note": "N4: this structured contract is scoped to playing-cards props. Other prop types get the same custody fact once they have a versioned state_schema_ref (W9). position is descriptive metadata only (e.g. \"left inside jacket pocket\") — it is not itself a state 0.1 term and post_state does not read it; only the custody change named by recipient_ref is reflected in state."
}
}Verbatim JSON · Source: schemas/tcs-taxonomy-0.8.json/verbs/transfer-custody