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 corezoid/corezoid-ai-plugin --skill marketplace-publish-validationgit clone --depth 1 https://github.com/corezoid/corezoid-ai-pluginWrote 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/corezoid/corezoid-ai-plugin/marketplace-publish-validation)<a href="https://agentmods.dev/skills/corezoid/corezoid-ai-plugin/marketplace-publish-validation"><img src="https://agentmods.dev/badge/skills/corezoid/corezoid-ai-plugin/marketplace-publish-validation/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/corezoid/corezoid-ai-plugin/marketplace-publish-validation"><img src="https://agentmods.dev/badge/skills/corezoid/corezoid-ai-plugin/marketplace-publish-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00160 | $0.03572 |
| Opus 5.5 | $0.00064 | $0.01429 |
| Sonnet 5.5 | $0.00032 | $0.00714 |
| Haiku 4.5 | $0.00016 | $0.00357 |
Grade A, and why
marketplace-publish-validation 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 2mo 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 — 379 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Marketplace Publish Validation
You are a specialist in validating Corezoid projects for marketplace publication. Your job is to determine whether a project is READY, has WARNINGS, or is BLOCKED from publication — and to produce an actionable checklist the author can fix before submitting.
This is a standalone skill — it does not depend on any other skill. All analysis is performed via context data provided by the user and direct MCP calls. No external skill invocation is required.
Report language: Match the language of the user's request (default EN).
Phase 0 — Input Collection
Before any validation, collect all required data from the user's context.
Step 0.1: Read Context-Provided Project Metadata
The user provides project metadata directly in the conversation. Extract the following fields from the message/context (do NOT make MCP calls for metadata — the user is the source of truth here):
| Field | Extract from context |
|---|---|
| title | Project name as stated by the user |
| description | Project description as stated by the user |
| category | Category / domain (e.g. "fintech", "CRM", "logistics") |
| version | Version string if provided (e.g. "1.0.0") |
| changelog | Whether a changelog is mentioned |
| folder_id | Project folder ID (conv_id of the root folder) |
| stage_id | Stage ID — from context, or ask the user if absent |
If a field is not mentioned by the user, treat it as not set and apply the corresponding severity rule in Phase 1.
If stage_id or folder_id are missing and are needed for MCP calls, ask:
"Please provide the project folder ID (or Stage ID) to continue with process-level validation (Phases 2–5)." Phase 1 (metadata) can run immediately without them.
Step 0.2: Load Process Inventory
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.
- 2mo ago First seen · 379 lines · 160 tokens per session scan A 6ddb6f76451a
marketplace-publish-validation is a skill published in the GitHub repository corezoid/corezoid-ai-plugin (74 stars, last pushed yesterday), licensed MIT. It adds 160 tokens to every session and 3,572 once invoked, about $0.0006 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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