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改进 HHT 择时（相位代理）。用户说「HHT」「希尔伯特」「EMD择时」「/hht-timing」时使用。无 EMD 库时用包络/相位近似并 meta.degraded。默认 create_web。
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Showing SKILL.md
| name | hht-timing |
| description | 改进 HHT 择时（相位代理）。用户说「HHT」「希尔伯特」「EMD择时」「/hht-timing」时使用。无 EMD 库时用包络/相位近似并 meta.degraded。默认 create_web。 |
| license | Apache-2.0 |
| metadata | {"author":"opptrix","version":"1.0","title":"HHT择时","summary":"希尔伯特相位代理择时（无EMD降级）","category":"quant","slash-rank":"524","default-deliverable":"web","required-packs":"instrument_analytics artifacts"} |
| allowed-tools | search_instruments get_instrument_chart ask_user opptrix_run workspace_write workspace_read create_web update_web read_web list_web_vendor |
| references | ["scripts/hht_timing.py","scripts/fixtures/sample_input.json"] |
有 panels.emd / imf 时走完整相位路径（data_mode=full）；否则平滑中轴残差 + 差分正交分量 → atan2 相位代理（data_mode=proxy）。信号模块见 @skill:signal-hht。
python scripts/hht_timing.py --input data.json --output result.json