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Get Started Free →Darts — time series forecasting library by Unit8. Unified API across ARIMA, Prophet, CatBoost, N-BEATS, TFT, TCN, Transformer, and RNN models. Backtesting, probabilistic forecasting, and covariate support.
.claude/skills/mkurman-darts/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-19 | ✓→✗ | ▼ Worse | 17% | 0% |
| case-02 | ✓→✓ | = Same ✓ | -5% | 0% |
| case-03 | ✓→✓ | = Same ✓ | 41% | 0% |
| case-04 | ✓→✓ | = Same ✓ | 12% | 0% |
| case-13 | ✓→✓ | = Same ✓ | 137% | 0% |
Darts (Unit8) provides a unified forecasting API across statistical models (ARIMA, Prophet, Theta), deep learning (N-BEATS, TFT, TCN, Transformer, RNN), and ensemble methods. Supports univariate/multivariate, probabilistic forecasting, covariate handling, and backtesting.
bashuv pip install darts
pythonfrom darts import TimeSeries from darts.models import ExponentialSmoothing import pandas as pd series = TimeSeries.from_dataframe(pd.DataFrame({"y": [1,2,3,4,5,6,7,8,9,10]}), value_cols="y") model = ExponentialSmoothing() model.fit(series) forecast = model.predict(6) print(forecast.values())
pythonfrom darts.models import NBEATSModel model = NBEATSModel(input_chunk_length=24, output_chunk_length=12) model.fit(train, epochs=100) pred = model.predict(12)
pythonfrom darts.metrics import mae, mape errors = model.backtest(series, start=0.7, forecast_horizon=6, stride=1) print(f"MAE: {mae(errors):.3f}, MAPE: {mape(errors):.3f}")
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | fail→fail | 12,711 | 10,365 | -18% | 1 | 1 | 0% | 2,338 | 2,358 | +1% | 0 | 0 | — |
case-02 | pass→pass | 5,199 | 3,084 | -41% | 1 | 1 | 0% | 899 | 851 | -5% | 0 | 0 | — |
case-03 | pass→pass | 4,105 | 3,452 | -16% | 1 | 1 | 0% | 669 | 944 | +41% | 0 | 0 | — |
case-04 | pass→pass | 4,146 | 3,075 | -26% | 1 | 1 | 0% | 812 | 913 | +12% | 0 | 0 | — |
case-13 | pass→pass | 1,690 | 1,529 | -10% | 1 | 1 | 0% | 240 | 569 | +137% | 0 | 0 | — |
case-05 | pass→pass | 5,430 | 3,429 | -37% | 1 | 1 | 0% | 897 | 978 | +9% | 0 | 0 | — |
case-06 | pass→pass | 2,568 | 2,386 | -7% | 1 | 1 | 0% | 496 | 812 | +64% | 0 | 0 | — |
case-07 | pass→pass | 11,306 | 3,518 | -69% | 1 | 1 | 0% | 2,169 | 1,068 | -51% | 0 | 0 | — |
case-08 | pass→pass | 4,295 | 3,245 | -24% | 1 | 1 | 0% | 735 | 937 | +27% | 0 | 0 | — |
case-09 | pass→pass | 3,475 | 2,689 | -23% | 1 | 1 | 0% | 578 | 634 | +10% | 0 | 0 | — |
case-10 | pass→pass | 10,014 | 7,803 | -22% | 1 | 1 | 0% | 2,015 | 1,932 | -4% | 0 | 0 | — |
case-11 | pass→pass | 3,915 | 3,475 | -11% | 1 | 1 | 0% | 770 | 1,087 | +41% | 0 | 0 | — |
case-12 | pass→pass | 14,495 | 13,647 | -6% | 1 | 1 | 0% | 3,057 | 3,084 | +1% | 0 | 0 | — |
case-14 | pass→pass | 4,548 | 4,725 | +4% | 1 | 1 | 0% | 824 | 1,215 | +47% | 0 | 0 | — |
case-15 | fail→fail | 13,054 | 12,273 | -6% | 1 | 1 | 0% | 2,285 | 2,607 | +14% | 0 | 0 | — |
case-16 | pass→pass | 4,084 | 3,246 | -21% | 1 | 1 | 0% | 534 | 851 | +59% | 0 | 0 | — |
case-17 | pass→pass | 4,432 | 2,781 | -37% | 1 | 1 | 0% | 754 | 840 | +11% | 0 | 0 | — |
case-18 | pass→pass | 8,576 | 6,611 | -23% | 1 | 1 | 0% | 1,558 | 1,542 | -1% | 0 | 0 | — |
case-19 | pass→fail | 7,412 | 6,471 | -13% | 1 | 1 | 0% | 1,346 | 1,576 | +17% | 0 | 0 | — |
case-20 | pass→pass | 9,120 | 4,927 | -46% | 1 | 1 | 0% | 1,610 | 1,223 | -24% | 0 | 0 | — |
case-21 | pass→pass | 14,132 | 14,187 | +0% | 1 | 1 | 0% | 2,571 | 3,015 | +17% | 0 | 0 | — |
case-22 | fail→fail | 13,197 | 12,435 | -6% | 1 | 1 | 0% | 2,575 | 2,643 | +3% | 0 | 0 | — |
case-23 | pass→pass | 10,498 | 6,801 | -35% | 1 | 1 | 0% | 1,965 | 1,700 | -13% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 23 cases were attempted. The headline lift of -100 percentage points is the difference between those two pass rates over the 23 comparable cases. 1 case got worse with the skill loaded, and it is included in that figure.
Other measured skills in the registry, with their headline benchmark lift.