Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add goshippo/ai --skill trackinggit clone --depth 1 https://github.com/goshippo/aiWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/goshippo/ai/tracking)<a href="https://agentmods.dev/skills/goshippo/ai/tracking"><img src="https://agentmods.dev/badge/skills/goshippo/ai/tracking/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/goshippo/ai/tracking"><img src="https://agentmods.dev/badge/skills/goshippo/ai/tracking.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00022 | $0.00566 |
| Opus 5.5 | $0.00009 | $0.00226 |
| Sonnet 5.5 | $0.00004 | $0.00113 |
| Haiku 4.5 | $0.00002 | $0.00057 |
Grade A, and why
tracking scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Package Tracking
Track by Number
- Determine carrier and tracking number. Carrier must be a lowercase Shippo token (e.g.,
usps,ups,fedex,dhl_express). Seeshippo/references/carrier-guide.mdfor tracking number format hints per carrier. If uncertain, ask the user. - Call
GetTrackwithcarrierandtracking_number. - Key response fields:
tracking_status(status, status_details, status_date, location),tracking_history,eta. - Each tracking event includes a
substatusobject withcode,text, andaction_required(boolean). Include substatus details when presenting tracking history -- these provide more specific information about what happened at each step. - Present: current status, location, ETA, substatus details, and chronological event history (most recent first).
Status Values
See shippo/references/carrier-guide.md for carrier-specific status nuances. Standard values:
| Status | Meaning |
|---|---|
| PRE_TRANSIT | Label created, carrier has not received the package |
| TRANSIT | Package is in transit |
| DELIVERED | Delivered |
| RETURNED | Being returned or returned to sender |
| FAILURE | Delivery failed |
| UNKNOWN | No tracking information from carrier |
The eta field is provided by most major carriers (USPS, UPS, FedEx, DHL Express) but availability is carrier-dependent, it may be null for regional carriers or for shipments before the carrier has finalized routing. Treat absence as informational, not as an error condition.
Find Trackable Packages
Call ListTransactions. Filter for object_status: SUCCESS. Each successful transaction has tracking_number and carrier info. Then call GetTrack for selected items.
Register a Tracking Webhook
- Get the user's HTTPS webhook URL.
- Call
createWebhookwithurlandevent: track_updated. - Optionally call
CreateTrackwith carrier and tracking number to register a specific shipment for push updates.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 62 lines · 22 tokens per session scan A a40720cb3a98
tracking is a skill published in the GitHub repository goshippo/ai (3 stars, last pushed 10d ago), licensed MIT. It adds 22 tokens to every session and 566 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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