Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add hansohn/marketplace-skills/plugin install marketplaceWrote 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/hansohn/marketplace-skills/ebay-draft)<a href="https://agentmods.dev/skills/hansohn/marketplace-skills/ebay-draft"><img src="https://agentmods.dev/badge/skills/hansohn/marketplace-skills/ebay-draft/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/hansohn/marketplace-skills/ebay-draft"><img src="https://agentmods.dev/badge/skills/hansohn/marketplace-skills/ebay-draft.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 | $0.00115 | $0.02223 |
| Opus 5 | $0.00057 | $0.01111 |
| Sonnet 5 | $0.00023 | $0.00445 |
| Haiku 4.5 | $0.00012 | $0.00222 |
Grade A, and why
ebay-draft 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 10d 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 — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.
eBay Draft
Create an eBay inventory item and offer (as a draft) via the eBay MCP server. The user reviews and publishes the draft manually from eBay Seller Hub.
When to use
Trigger when:
- The user asks to create an eBay draft, push to eBay, or auto-list on eBay
- The
/marketplace:listingorchestrator delegates eBay draft creation after generating listing copy - The user has a prepared listing (item details + price + photos) and wants to skip manual entry into eBay's UI
Do not use for:
- Auto-publishing — this skill only creates drafts, never calls
ebay_publish_offer - Facebook Marketplace — no API exists; FB always requires manual paste
Required inputs
- Item identification: year, make, model, model number, color, condition
- eBay-ready listing data: title (≤80 chars), description, item specifics, condition description
- Price: list price + currency (default USD)
- Photo URLs (optional): publicly accessible image URLs. If only local file paths are available, the draft is created without images and the user uploads via Seller Hub before publishing.
Input resolution (where the data comes from)
This skill can be invoked three ways. Resolve missing data in this order:
1. Chained from /marketplace:listing (eBay was in the enabled platforms).
The orchestrator already generated the eBay block during the listing run. Extract:
- Title, item specifics, condition description, description body → from the
## eBay Listingsection of the generated.mdfile - Price → from the Pricing Recommendation section's "Final listing price"
- Item identification → from the Item Details section
2. Standalone, with a path to an existing {ItemPrefix}-Listing.md.
Read the file. If it contains a ## eBay Listing section, use it (same extraction as case 1). If it has the item details + pricing but no eBay block (because eBay wasn't enabled when generated), derive the eBay-formatted data on the fly:
- Read
${CLAUDE_PLUGIN_ROOT}/platforms/ebay.mdfor the block template and generation rules (these shared files live at the plugin root, not inside this skill's folder — a bareplatforms/ebay.mdread relative toskills/ebay-draft/will 404) - Use the orchestrator's "Platform-file placeholder sources" derivation logic (see
${CLAUDE_PLUGIN_ROOT}/skills/listing/SKILL.mdStep 3) to fill the placeholders from the existing Item Details + Pricing data - Don't write the derived eBay block back to the .md file — just use it to populate the API call
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.
- 10d ago First seen · 138 lines · 115 tokens per session scan A f0a6d7040b0d
ebay-draft is a skill published in the GitHub repository hansohn/marketplace-skills (1 stars, last pushed 1mo ago), licensed MIT. It adds 115 tokens to every session and 2,223 once invoked, about $0.0006 per session on Opus 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 2026-08-31.
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