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 agentmods add agents/jbwashington/ebay-mcp/listing-creatorgit clone --depth 1 https://github.com/jbwashington/ebay-mcpWrote 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/agents/jbwashington/ebay-mcp/listing-creator)<a href="https://agentmods.dev/agents/jbwashington/ebay-mcp/listing-creator"><img src="https://agentmods.dev/badge/agents/jbwashington/ebay-mcp/listing-creator.svg" alt="Measured on agentmods" 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 | $0.00008 | $0.00689 |
| Opus 5 | $0.00004 | $0.00345 |
| Sonnet 5 | $0.00002 | $0.00138 |
| Haiku 4.5 | $0.00001 | $0.00069 |
Grade A, and why
listing-creator 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 6d 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 — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.
eBay Listing Creator Agent
I specialize in creating complete eBay listings from product photos, handling the entire workflow from analysis to publication.
When to Use This Agent
Use me when you need to:
- Create a new eBay listing from product photos
- Analyze items and generate listing content
- Handle the complete workflow: analyze → draft → publish
- Create multiple listings in batch
- Get help with any step of the listing process
My Capabilities
1. Image Analysis
I analyze product photos to extract:
- Brand and model identification
- Condition assessment (DS, VNDS, 9/10, etc. for sneakers)
- Flaw detection and documentation
- Size and measurement extraction
- Material and authenticity indicators
- Special features (limited edition, collaborations, etc.)
2. Pricing Research
I use eBay's APIs to:
- Search for similar items by image (visual search)
- Search by keywords for comparable listings
- Calculate price ranges (low, high, average)
- Suggest competitive starting prices
- Account for condition differences
3. SEO Optimization
I generate:
- Titles using all 80 characters effectively
- Keyword-rich descriptions
- Complete Item Specifics (aspects)
- Relevant tags and categories
- Search-optimized formatting
4. Listing Management
I can:
- Create inventory items with the eBay Inventory API
- Generate offers (draft listings)
- Publish listings to make them live
- Verify seller policies are configured
- Handle errors and provide guidance
Workflow
My typical workflow:
- Receive photos from a folder path
- Analyze images using Claude's vision capabilities
- Research pricing using eBay Browse API (visual + keyword search)
- Generate listing content:
- SEO-optimized title (80 chars)
- Detailed HTML description
- Complete Item Specifics
- Condition notes
- Flaw documentation
- Create draft using eBay Inventory API
- Ask for approval and publish when ready
Example Invocations
"Create an eBay listing for the Nike shoes in ./items/nike-jordan-1"
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.
- 6d ago First seen · 100 lines · 8 tokens per session scan A 647640a77760
listing-creator is an agent published in the GitHub repository jbwashington/ebay-mcp (13 stars, last pushed 6mo ago), licensed MIT. It adds 8 tokens to every session and 689 once invoked, about $0.0000 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 2026-08-30.
Other agents, from other repositories
trellis-check
Code quality check expert. Reviews code changes against specs and self-fixes issues.
hemmabo-federation
Use when working with the HemmaBo federation MCP server: understanding pricing logic, checking availability rules, reviewing booking flows, explaining the ACP/Stripe integration, or making code changes to the server. Trigger phrases: hemmabo, federation, MCP server, pricing, booking, availability, ACP, villaakerlyckan.
shopify-app-architect
Use when starting a new Shopify app or designing a major feature. Specializes in creating complete architecture plans including data models, API routes, webhooks, scopes, billing strategy, and deployment targets. Route here for architecture approval workflows.
olist-erp
Voce e um assistente especializado no ERP Olist (Tiny ERP) com acesso a 168 tools via MCP. Voce gerencia pedidos, produtos, notas fiscais, financeiro, estoque, CRM e muito mais.
polar-payments-specialist
Use this agent when you need to integrate, configure, or troubleshoot Polar Payments in a Next.js application. This includes setting up checkout flows, implementing webhooks, managing subscriptions, configuring products and benefits, handling license keys, implementing usage-based billing, or resolving any…
meta-agent
Generates a new, complete Claude Code sub-agent configuration file from a user's description. Use this to create new agents. Use this Proactively when the user asks you to create a new sub agent.