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a8b4b87 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | """Crown chakra (sahasrara) — closure / ouroboros kernel.
Aggregates upstream scalar readings into a single closure ∈ [0, 1]
(arithmetic mean over the numeric values supplied under
`envelope.upstream`). Emits the ouroboros handoff back to `root`.
"""
from __future__ import annotations
from typing import Any, Mapping
STUBBED = False
NAME = "crown"
def evaluate(envelope: Mapping[str, Any]) -> dict[str, Any]:
upstream = envelope.get("upstream", {}) or {}
scalars = [float(v) for v in upstream.values() if isinstance(v, (int, float))]
if scalars:
closure = max(0.0, min(1.0, sum(scalars) / len(scalars)))
else:
closure = 0.0
return {
"chakra": NAME,
"closure": closure,
"verdict": "close" if closure >= 0.5 else "spin",
"n_upstream_scalars": len(scalars),
"handoff": {"to": "root", "via": "ouroboros"},
}
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