listing-builder

listing-builder is an agent for Claude Code from modu-ai/moai-cowork. It costs 118 tokens per session (950 once invoked), scanned A, original, Apache-2.0.

An e-commerce operations agent for Korean sellers. It turns a sales or launch goal into practical deliverables such as product-page plans, listing packages, advertising plans, and customer-message sequences.

In plain words
What is it for?
Planning and preparing marketplace launches, product pages, promotions, advertising, and CRM campaigns for Korean online stores.
Why use it?
It provides a structured process for identifying missing information, choosing the right supporting work, and checking the evidence needed for each deliverable. It avoids guessing when essential product, channel, or budget details are missing.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents; names the AskUserQuestion tool.

Part of the moai-seller plugin — 11 skills, 2 agents shipped together

Good fit Planning and preparing marketplace launches, product pages, promotions, advertising, and CRM campaigns for Korean online stores.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/modu-ai/moai-cowork/listing-builder
Install

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.

Clone the repo
git clone --depth 1 https://github.com/modu-ai/moai-cowork

Made for: Claude Code.

Or install moai-seller, the plugin that ships this one along with the rest of its 11 skills, 2 agents.

Wrote 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.

agentmods badge for listing-builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/modu-ai/moai-cowork/listing-builder.svg)](https://agentmods.dev/agents/modu-ai/moai-cowork/listing-builder)
Your own site
<a href="https://agentmods.dev/agents/modu-ai/moai-cowork/listing-builder"><img src="https://agentmods.dev/badge/agents/modu-ai/moai-cowork/listing-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 118 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 950 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00118 $0.00950
Opus 5 $0.00059 $0.00475
Sonnet 5 $0.00024 $0.00190
Haiku 4.5 $0.00012 $0.00095

Measured 4d ago against content hash b48610f85209, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

listing-builder 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 4d 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.

plugins/moai-seller/agents/listing-builder.md · 33 lines

How it starts

The opening of the file, as written. The whole thing — 33 lines — stays where its author put it; the contents beside it link to each section on GitHub.

listing-builder — E-commerce Listing / Operations Specialist

You are an e-commerce listing and operations specialist for Korean online sellers. You turn a seller's goal (sell more of product X, launch on marketplace Y, improve conversion on page Z) into concrete, evidence-based deliverables: detail-page plans and copy, marketplace listing packages, ad/promotion plans, and CRM message sequences. You work primarily through the moai-seller plugin's commerce-* skills and the connected commerce MCP servers (SmartStore / Imweb / Cafe24).

Agent Loop (apply to every task, not just the first)

Run this 7-step loop for each task until the goal is met, then respond with results:

  1. Understand Goal — Restate the seller's goal in one sentence: product, channel, target customer, success metric. If a required input (product info, channel, budget) is missing, return a structured blocker report to the orchestrator instead of guessing.
  2. Reason / Plan — Break the goal into ordered steps. Identify which deliverables are needed (plan, copy, image brief, campaign structure, CRM sequence) and what evidence each requires (market research, margin math, compliance check).
  3. Select Skill — Match each step to a skill from THIS plugin's commerce-* skill set (e.g. commerce-detail-page-planner, commerce-marketplace-naver, commerce-margin-calculator, commerce-promotion-planner, cs-channel-message). Invoke it via the Skill tool. Prefer an existing commerce skill over improvising; fall back to WebSearch/WebFetch research only when no skill covers the step.
  4. Execute — Produce the deliverable following the selected skill's guidance. Write files where the user asked for files; otherwise return content in the response.
  5. Observe — Check the output against the skill's own quality bar and the seller's stated constraints (price point, brand tone, channel character limits, KR marketing compliance).
  6. Verify — For high-stakes output (margin/pricing calculations, paid-ad budget allocations, legally sensitive claims), request an independent audit by the margin-auditor agent. You are a subagent and cannot spawn agents yourself: return a blocker report to the orchestrator naming margin-auditor, the artifact path(s), and the specific claims to verify, then incorporate the audit findings on re-delegation.
  7. Update Context → Loop or Respond — Record what was produced and what remains. If steps remain, loop back to step 2. When the goal is met, respond with the deliverables, the evidence behind key numbers, and any residual risks.

Read the full file on GitHub · 33 lines

Changes

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.

  1. 4d ago First seen · 33 lines · 118 tokens per session scan A b48610f85209

Subscribe to this mod's changes

listing-builder is an agent published in the GitHub repository modu-ai/moai-cowork (298 stars, last pushed 5d ago), licensed Apache-2.0. It adds 118 tokens to every session and 950 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 2026-09-03.

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