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marketplace-publish-extension SKILL.md skillA

marketplace-publish-extension from dcc-mcp/dcc-mcp-core is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add dcc-mcp/dcc-mcp-core/marketplace-publish-extension@git:20261104.1b24f3d

Pins git:20261104.1b24f3d in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: dcc-mcp/dcc-mcp-core
Path: skills/marketplace-publish-extension/SKILL.md
Versions recorded: 19
Latest version: git:20261104.1b24f3d, committed Nov 4, 2026
First version recorded: Jul 18, 2026
Size: 5,176 bytes
Repository stars: 73
License: MIT

Infrastructure skill — publish (register/update) an extension package to a marketplace catalog. Reads the extension's SKILL.md frontmatter, constructs a CatalogEntry, and upserts it into the target marketplace.json. Optionally commits and pushes when the catalog source is a git repository. Use after scaffolding an extension with marketplace-create-extension. Not for installing or searching extensions — use marketplace-install or marketplace-search for that.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Marketplace Publish 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
`dcc-mcp-cli update` contract (check, download, and stage in one step) is the
single source of truth; do not invent a package-local CLI bootstrap path.

Publish (register or update) a DCC-MCP Skill, bundle, or Agent Plugin package
to a marketplace catalog (`marketplace.json`).

Prefer the CLI for local and CI publishing:

```bash
dcc-mcp-cli marketplace pack ./my-extension --out dist/
dcc-mcp-cli marketplace publish ./my-extension \
  --catalog ./marketplace.json \
  --install-url https://github.com/<owner>/<repo>/releases/download/v0.1.0/my-extension.zip \
  --sha256 sha256:<digest> \
  --min-core-version 0.19.0 \
  --skill-root skill/my-extension
```

## Tools

### `marketplace_publish_extension__publish`
Scan an extension directory, build a `CatalogEntry`, and upsert it into the
target `marketplace.json` (local file or remote URL-backed file). When the
catalog source is a local git repository the tool can optionally commit and
push the change.

## Prerequisites
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add dcc-mcp/dcc-mcp-core/marketplace-publish-extension@sha256:d175ca747bcd5eab

The line at the top of this page pins the label git:20261104.1b24f3d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_mueix3hf267woc6d.svg)](https://markdownregistry.com/a/art_mueix3hf267woc6d)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 19 versions of this file, between Jul 18, 2026 and Nov 4, 2026, about one every 6 days.

version	committed	commit	size	audit
git:20261104.1b24f3d latest	2026-11-04	1b24f3d	5,176 B	A	view · diff
git:20261101.4a00d99	2026-11-01	4a00d99	5,148 B	A	view · diff
git:20261029.14d9986	2026-10-29	14d9986	5,148 B	A	view · diff
git:20261028.07a2a67	2026-10-28	07a2a67	5,148 B	A	view · diff
git:20261027.032bb99	2026-10-27	032bb99	5,148 B	A	view · diff
git:20261026.b018433	2026-10-26	b018433	5,148 B	A	view · diff
git:20261025.f36d44e	2026-10-25	f36d44e	5,148 B	A	view · diff
git:20261023.9d43691	2026-10-23	9d43691	5,148 B	A	view · diff
git:20261019.9f466e5	2026-10-19	9f466e5	5,148 B	A	view · diff
git:20261014.db781e7	2026-10-14	db781e7	5,148 B	A	view · diff
git:20261012.465c728	2026-10-12	465c728	5,148 B	A	view · diff
git:20261012.bb7b6ad	2026-10-12	bb7b6ad	5,148 B	A	view · diff
git:20261008.42e6de5	2026-10-08	42e6de5	5,148 B	A	view · diff
git:20260927.f5cfb64	2026-09-27	f5cfb64	5,123 B	A	view · diff
git:20260820.6cf42d7	2026-08-20	6cf42d7	4,993 B	A	view · diff
git:20260812.32f0b79	2026-08-12	32f0b79	4,914 B	A	view · diff
git:20260806.dfcec56	2026-08-06	dfcec56	4,710 B	A	view · diff
git:20260719.e1e02f3	2026-07-19	e1e02f3	4,376 B	A	view · diff
git:20260718.4a75c38	2026-07-18	4a75c38	4,075 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (5176 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

dcc-mcp/dcc-mcp-core · 73 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_mueix3hf267woc6d
GET https://markdownregistry.com/api/v1/resolve?ref=dcc-mcp/dcc-mcp-core/marketplace-publish-extension
GET https://markdownregistry.com/api/v1/blob/d175ca747bcd5eab1d403697ad3b8ee8f1fba302f6748f5f97bb7dacb27aaaed

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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