git:20260719.e1e02f3 to git:20260806.dfcec56

---

name: marketplace-create-extension

description: >-

Infrastructure skill — scaffold a new marketplace extension package

(SKILL.md + tools.yaml + scripts/) with MIT-0 licensing. Use when

creating a publishable marketplace entry for any DCC host. Not for

editing existing extensions or driving live DCC scenes — use domain

skills for that.

license: MIT-0

compatibility: "dcc-mcp-core 0.17+, Python 3.7+"

allowed-tools: Bash Read Write

metadata:

dcc-mcp:

dcc: python

version: "0.18.9" # x-release-please-version

layer: infrastructure

search-hint: >-

create marketplace extension, scaffold extension package, new skill

package, SKILL.md generator, marketplace entry, extension authoring

tags: "marketplace, extension, scaffolding, authoring, infrastructure"

tools: tools.yaml

skill-reference-docs:

- "references/*.md"

openclaw:

homepage: https://github.com/dcc-mcp/dcc-mcp-core/blob/main/skills/marketplace-create-extension/SKILL.md

---

# Marketplace Create Extension

## CLI-First Control Path

For marketplace and live-DCC operations, use the `dcc-mcp` skill and

`dcc-mcp-cli` whenever shell access is available. Its consent-gated install and

`update check` → `update apply` contract is the single source of truth; do not

invent a package-local CLI bootstrap path.

Scaffold a new marketplace extension package with the standard dcc-mcp

skill layout and MIT-0 licensing. Follows the same patterns as

`dcc-mcp-skills-creator`.

## Tools

### `marketplace_create_extension__create`

Scaffold a new extension directory containing SKILL.md (MIT-0), tools.yaml

(with full annotations), and a scripts/ directory with a placeholder action

script that uses `dcc_mcp_core.skills_helper`.

## Prerequisites

- dcc-mcp-core installed

- Write access to the target output directory

## Generated Layout

```

<name>/

├── SKILL.md # MIT-0 frontmatter + body

├── tools.yaml # Tool declarations with schemas, annotations, execution metadata

└── scripts/

└── <action>.py # Placeholder using skills_helper pattern

```

## Quick Start

```python

from dcc_mcp_core.skills_helper import call_tool

# Via MCP tool call:

# marketplace_create_extension__create(

# name="my-maya-tools",

# description="Custom Maya modeling utilities",

# dcc_targets=["maya"],

# install_type="git",

# author="Your Name",

# )

```

## Authoring Workflow

1. Scaffold the extension with `marketplace_create_extension__create`.

2. Implement the placeholder action script.

3. Validate with `dcc_mcp_skills_creator__validate_skill_dir`.

4. Publish to a marketplace catalog with `marketplace_publish_extension__publish`.

Read [MARKETPLACE_EXTENSION_GUIDE.md](references/MARKETPLACE_EXTENSION_GUIDE.md)

for the full marketplace extension authoring contract.