anofox-forecast-detection skillA
anofox-forecast-detection is agent-read markdown (skill) from datazoode/anofox-forecast: Seasonality, changepoint, peak, and decomposition detection for the anofox_forecast DuckDB extension. Use when identifying seasonal periods before configuring seasonal forecasting models, detecting structural breaks, analysing peak timing regularity, or decomposing a series into trend / seasonal / residual components..
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 — Detection & Decomposition Cheat Sheet
**Extension:** `anofox_forecast` v0.15.3 | **DuckDB:** v1.4.5 LTS / v1.5.4+ | **Dual naming:** `ts_*` and `anofox_fcst_ts_*`
Detect signal structure — **seasonality is not auto-detected by the forecasters**; you must run detection first and pass `seasonal_period` explicitly to `ts_forecast_by`.
## Requires: json extension
Detection functions use the `json` extension for parameter marshalling. Enable auto-load once per session:
```sql
SET autoinstall_known_extensions = 1;
SET autoload_known_extensions = 1;
```
## Period detection — 12 methods
### `ts_detect_periods_by` — primary entry point
```sql
ts_detect_periods_by(source VARCHAR, group_col COLUMN, date_col COLUMN, value_col COLUMN,
params MAP/STRUCT) → TABLE
```
Output columns (group column name is preserved):
| Column | Type | Description |
|---|---|---|
| `<group_col>` | (input type) | Preserved group column (e.g. `product_id`) |
| `periods` | `STRUCT(period, confidence, strength, amplitude, phase, iteration, ...)[]` | Array of detected periods |
| `n_periods` | BIGINT | Count of detected periods |
…Read the whole file at its exact version.
How to install
mdr add datazoode/anofox-forecast/anofox-forecast-detection@v0.15.3mdr add datazoode/anofox-forecast/anofox-forecast-detection@sha256:ec7405c654e938a5Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_ciabwodsj7574erx)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.15.3 latest | 2026-09-18 | 7e23980 | 13,032 B | A | view · diff |
| v0.15.3 | 2026-09-18 | e2d0889 | 10,978 B | A | view |
Audit of the latest version
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- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13032 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
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- 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
datazoode/anofox-forecast · 39 stars · license NOASSERTION · pushed 2026-09-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ciabwodsj7574erx GET https://markdownregistry.com/api/v1/resolve?ref=datazoode/anofox-forecast/anofox-forecast-detection GET https://markdownregistry.com/api/v1/blob/ec7405c654e938a5e739c93d1181ae75814ca02dc692d77f09428b6c191d575b
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