Home / datazoode / anofox-forecast · plugins/anofox-forecast/skills/anofox-forecast-eda/SKILL.md · GitHub

anofox-forecast-eda skillA

anofox-forecast-eda is agent-read markdown (skill) from datazoode/anofox-forecast: Exploratory data analysis, data quality, and statistical diagnostics for the anofox_forecast DuckDB extension — 34 per-series statistics, data-quality scoring, quality-report summaries, 117 tsfresh-compatible feature extraction, and 7 diagnostic functions covering stationarity (ADF, KPSS, combined verdict) and residual adequacy (Ljung-Box, Durbin-Watson, Jarque-Bera, combined report). Use before forecasting to understand series characteristics (length, gaps, trend, seasonality strength, intermit.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

What the file says

# Anofox Forecast — EDA & Data Quality Cheat Sheet

**Extension:** `anofox_forecast` v0.15.3 | **DuckDB:** v1.4.5 LTS / v1.5.4+ | **Dual naming:** `ts_*` and `anofox_fcst_ts_*`

Understand your data before modelling it: per-series statistics, data-quality scores, feature vectors for ML.

## Statistics

### `ts_stats` (table function) — 34 metrics per series

```sql
ts_stats(source VARCHAR, group_col COLUMN, date_col COLUMN, value_col COLUMN,
         frequency VARCHAR) → TABLE
```

Returns 34 columns: `length`, `n_nulls`, `n_nan`, `n_zeros`, `n_positive`, `n_negative`, `n_unique_values`, `is_constant`, `n_zeros_start`, `n_zeros_end`, `plateau_size`, `plateau_size_nonzero`, `mean`, `median`, `std_dev`, `variance`, `min`, `max`, `range`, `sum`, `skewness`, `kurtosis`, `tail_index`, `bimodality_coef`, `trimmed_mean`, `coef_variation`, `q1`, `q3`, `iqr`, `autocorr_lag1`, `trend_strength`, `seasonality_strength`, `entropy`, `stability`, plus date-derived `expected_length` and `n_gaps`.

```sql
-- Every stat for every series
SELECT * FROM ts_stats('sales', product_id, ds, y, '1d');

-- Quick sanity check
SELECT product_id, length, n_nulls, n_gaps, trend_strength, seasonality_strength
…

Read the whole file at its exact version.

How to install

Latest version
mdr add datazoode/anofox-forecast/anofox-forecast-eda@v0.15.3
Exact content
mdr add datazoode/anofox-forecast/anofox-forecast-eda@sha256:4f84451230b0fbb8

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Versions

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v0.15.3 latest2026-09-18 7e23980 13,879 BA view · diff
v0.15.32026-09-18 e2d0889 12,708 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (13879 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

datazoode/anofox-forecast · 39 stars · license NOASSERTION · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_l5wirbo3svhth3sd
GET https://markdownregistry.com/api/v1/resolve?ref=datazoode/anofox-forecast/anofox-forecast-eda
GET https://markdownregistry.com/api/v1/blob/4f84451230b0fbb83dd1b1e89603bd7f664a65afa20a8b0b9e91f180b7616917

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