Track packages across carriers (USPS, UPS, FedEx, DHL, Amazon, OnTrac, LaserShip). Use when: user asks about package status, adds a tracking number, wants delivery updates, or mentions shipments. Reads a markdown shipments file, auto-detects carrier from tracking number patterns, and checks status. Hybrid approach: tries direct HTTP first, recommends browser-use for JS-heavy carrier pages. ⚠️ Privacy: browser-use fallback sends tracking data to cloud services.
Track packages across multiple carriers from a markdown shipments file. Auto-detects carrier from tracking number patterns. Hybrid status checking: tries direct HTTP first, falls back to recommending browser-use for full tracking details.
The skill reads a markdown file with a table of active shipments:
# Active Shipments
| Order | Item | Carrier | Tracking | Link | Added |
|-------|------|---------|----------|------|-------|
| Acme #1234 | Widget | USPS | 9449050899562006763949 | [Track](https://...) | 2026-02-19 |
memory/shipments.md in the workspace# Check all active shipments
python3 scripts/shipment_tracker.py memory/shipments.md
# JSON output for integrations
python3 scripts/shipment_tracker.py memory/shipments.md --format json
# Detect carrier from a tracking number
python3 scripts/shipment_tracker.py --detect 9449050899562006763949
Automatically identifies carrier from tracking number patterns:
| Carrier | Pattern Examples |
|---|---|
| USPS | 92, 93, 94, 95 + 20-26 digits |
| UPS | 1Z + 16 alphanumeric |
| FedEx | 12, 15, or 20 digits; 7489 prefix |
| DHL | 10-11 digits or 3 letters + 7 digits |
| Amazon | TBA + 12+ digits |
| OnTrac | C or D + 14 digits |
| LaserShip | L + letter + 8+ digits |
When the script output includes needs_browser_use: true, it will provide a complete browser-use command:
python3 -c "
import asyncio
from browser_use import Agent, Browser, ChatBrowserUse
async def main():
browser = Browser(use_cloud=True)
llm = ChatBrowserUse()
agent = Agent(
task='Go to <tracking_url> and extract the current tracking status, delivery date, and location',
llm=llm, browser=browser
)
result = await agent.run(max_steps=10)
print('TRACKING:', result)
asyncio.run(main())
"
This ensures reliable tracking across all carriers, even those with aggressive bot detection.
When browser-use is needed:
--detect to identify carriermemory/shipments.md with order detailsPrivacy guidance: For medical supplies, personal items, or confidential orders, consider manual tracking to avoid sending shipment details to cloud services.
Direct skill execution:
tools.usps.com) — read-only, no authenticationBrowser-use fallback (privacy implications): When the skill recommends browser-use commands, external data transmission occurs:
Privacy consideration: Browser-use fallback involves third-party services that may log or process shipment data. For sensitive packages, consider manual browser tracking instead of the provided browser-use commands.