northbound-timing

name	northbound-timing
description	北向资金择时检验。用户说「北向择时」「北向资金能力」「/northbound-timing」时使用。必须有 panels.northbound；缺则 ok:false，禁止编造。默认 create_web。
license	Apache-2.0
metadata	{"author":"opptrix","version":"1.0","title":"北向资金择时","summary":"北向净流入序列规则择时（缺数据则失败）","category":"quant","slash-rank":"526","default-deliverable":"web","required-packs":"market artifacts"}
allowed-tools	get_cn_market_special get_market_dynamics get_instrument_chart ask_user opptrix_run workspace_write workspace_read create_web update_web read_web list_web_vendor
references	["scripts/northbound_timing.py","scripts/fixtures/sample_input.json"]

北向资金择时

与 @skill:northbound-flow（字段探测摘要）分工：本技能做序列择时规则。无 panels.northbound → ok:false。

python scripts/northbound_timing.py --input data.json --output result.json

panels.northbound[]：{date, net}（或 northbound_net/value）。可选 bars 指数收盘对照。