Low Stock Restock Alert

Purpose

Identify all WooCommerce products and variations with stock_quantity at or below a configurable threshold and export a prioritized reorder sheet. Groups results by category for easy routing to suppliers. Read-only — no stock data is modified.

Prerequisites

• WooCommerce store with REST API enabled
• Consumer Key with Read scope
• Store management must track stock per product (manage_stock: true per product)
• Minimum WooCommerce version: 3.5.0

Parameters

Authentication

WooCommerce uses OAuth 1.0a for HTTP and Basic Auth over HTTPS.

For HTTPS stores (recommended):

Authorization: Basic base64(consumer_key:consumer_secret)

For HTTP stores (development only): Use OAuth 1.0a — include oauth_consumer_key, oauth_nonce, oauth_signature, oauth_signature_method=HMAC-SHA1, oauth_timestamp, oauth_version=1.0

Never log or output consumer_key or consumer_secret values.

See docs/AUTHENTICATION.md for full setup instructions.

Safety

Read-only skill — no mutations are executed. Safe to run at any time.

Workflow Steps

Step 1 — Fetch products with low stock

GET /wp-json/wc/v3/products
  ?stock_status=instock&manage_stock=true&per_page=100&page=1
  [&category=<category_id>]

Filter client-side: keep products where stock_quantity <= threshold.

Also fetch out-of-stock products if include_out_of_stock: true:

GET /wp-json/wc/v3/products?stock_status=outofstock&per_page=100&page=1

Step 2 — Check variations (if include_variations: true)

For each variable product in the low-stock set:

GET /wp-json/wc/v3/products/{id}/variations?per_page=100&page=1

Add variations where manage_stock == true and stock_quantity <= threshold.

Step 3 — Fetch category names

GET /wp-json/wc/v3/products/categories?per_page=100&page=1

Build category ID → name lookup.

Step 4 — Sort and export

Sort by stock_quantity ascending (most critical first), grouped by category.

API Endpoints Used

GET  /wp-json/wc/v3/products                      — list products with stock filter
GET  /wp-json/wc/v3/products/{id}/variations      — variation stock levels
GET  /wp-json/wc/v3/products/categories           — category name lookup

Pagination Strategy

WooCommerce REST API uses page/per_page pagination (not cursor-based).

Standard pattern:

page = 1
while True:
  response = GET /endpoint?per_page=100&page=page
  process(response)
  if len(response) < 100: break
  page += 1

Maximum per_page is 100 for most endpoints. The X-WP-Total and X-WP-TotalPages response headers report totals. Always read X-WP-TotalPages on the first request to estimate job size.

Session Tracking

Claude MUST emit the following output at each stage. This is mandatory.

STARTUP:

╔══════════════════════════════════════════╗
║  SKILL: woo-low-stock-restock-alert      ║
║  STORE: <store_url>                      ║
║  TIME:  <ISO-8601 UTC>                   ║
║  MODE:  READ-ONLY                        ║
╚══════════════════════════════════════════╝

PER-OPERATION (emit after each API call batch):

[N/TOTAL] <METHOD> <endpoint> → <result_count> records | params: <key>=<val>

COMPLETION (human format):

╔══════════════════════════════════════════╗
║  COMPLETE: woo-low-stock-restock-alert   ║
║  RECORDS PROCESSED: <n>                  ║
║  OUTPUT: <filename>                      ║
╚══════════════════════════════════════════╝

COMPLETION (json format):

{
  "skill": "woo-low-stock-restock-alert",
  "store": "<store_url>",
  "completed_at": "<ISO-8601>",
  "records_processed": <n>,
  "output_file": "<path>",
  "dry_run": false
}

Output Format

CSV filename: woo-low-stock-restock-alert_<YYYY-MM-DD>.csv Columns: product_id, variation_id, sku, name, category, stock_quantity, stock_status, regular_price, low_stock_amount

Error Handling

Best Practices

• Run daily before placing supplier orders to catch critical stock levels.
• Set threshold to your average daily units sold × your supplier lead time in days.
• Combine with woo-inventory-adjustment to post the restocked quantities after receiving.
• Export the CSV directly to your purchasing team or ERP system.