anofox-forecast-detection SKILL.md skillA

anofox-forecast-detection from datazoode/anofox-forecast is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add datazoode/anofox-forecast/anofox-forecast-detection@v2026.09.26

Pins v2026.09.26 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
datazoode/anofox-forecast
Path
plugins/anofox-forecast/skills/anofox-forecast-detection/SKILL.md
Versions recorded
13
Latest version
v2026.09.26, committed Oct 30, 2026
First version recorded
Sep 18, 2026
Size
26,981 bytes
Repository stars
45
License
a license file GitHub does not identify

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.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Anofox Forecast — Detection & Decomposition Cheat Sheet

**Extension:** `anofox_forecast` v2026.09.26 (Rust crate `anofox-forecast` v0.16.2) | **DuckDB:** v2.0.0 / v1.5.6 | **Dual naming:** `ts_*` and `anofox_fcst_ts_*`

Detect signal structure. When both `seasonal_period` and `seasonal_periods` are omitted,
`ts_forecast_by` / `ts_cv_forecast_by` / the scalar paths / `ts_forecast_agg` all auto-detect
the seasonal period internally (first detected period, 1 if none found) — same rule on every
surface. Running detection first and passing `seasonal_period` explicitly is still recommended
for control and reproducibility over what silent auto-detection would pick.

## 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):
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add datazoode/anofox-forecast/anofox-forecast-detection@sha256:031ccffd687316ac

The line at the top of this page pins the label v2026.09.26, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ciabwodsj7574erx.svg)](https://markdownregistry.com/a/art_ciabwodsj7574erx)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 13 versions of this file, between Sep 18, 2026 and Oct 30, 2026, about one every 3 days.

versioncommittedcommitsizeaudit
v2026.09.26 latest2026-10-30 045486f 26,981 BA view · diff
v2026.09.262026-10-28 eeb26da 26,728 BA view · diff
v2026.09.262026-10-28 fc0a038 26,741 BA view · diff
v2026.09.262026-10-28 1d6abaf 25,603 BA view · diff
v2026.09.262026-10-23 59b2b86 25,035 BA view · diff
v2026.09.262026-10-22 7f33142 22,723 BA view · diff
v2026.09.262026-10-16 3a62628 22,715 BA view · diff
v2026.09.262026-10-16 d0ea55a 22,711 BA view · diff
v2026.09.262026-10-15 2cbb500 23,374 BA view · diff
v2026.09.262026-10-15 12b3642 23,374 BA view · diff
v2026.09.262026-10-14 042ba8a 22,430 BA view · diff
v0.15.32026-09-18 7e23980 13,032 BA view · diff
v0.15.32026-09-18 e2d0889 10,978 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (26981 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 · 45 stars · license a license file GitHub does not identify · pushed 2026-10-31 · 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/031ccffd687316ac56f0613c19ecbffde126742973752fa3657ae07d93907010

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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