Plugin developer guides

Guides for AI plugin and MCP server authors: publish to Claude Code, Codex, Cursor, Gemini CLI, OpenCode and the MCP Registry, ship Agent Skills, and pass a security review.

• Publish a Claude Code plugin to Codex, Cursor and Gemini CLI

  Package one Claude Code plugin for Codex, Cursor and Gemini CLI with the HOL Guard Plugin Kit: check it, write a folder per runtime, and see what each runtime drops.

• Turn an MCP Registry server.json into a Claude Code plugin

  Generate a Claude Code plugin, plus Codex, Cursor, VS Code, Gemini CLI and OpenCode configs, from the server.json you already publish to the MCP Registry.

• Ship Agent Skills to Claude Code, Codex and other runtimes

  Package SKILL.md folders as a Claude Code plugin, a Codex plugin and the Agent Skills layout with the HOL Guard Plugin Kit, and catch frontmatter errors first.

• How to pass a security review for an MCP server

  Fix what marketplace and enterprise reviewers check in an MCP server: shipped secrets, unpinned launch commands, transport and permissions. Scan it locally and in CI.

• Publish a Codex plugin from your repository

  Make a Codex plugin installable from your GitHub repository with a marketplace file, check it with the HOL Guard Plugin Kit, and submit it to the plugin directory.

• Submit a Cursor plugin for marketplace review

  Prepare a Cursor plugin for the manually reviewed Cursor marketplace: the manifest, MCP config from the HOL Guard Plugin Kit, and the open-source requirement.

• Publish a Claude Code plugin through a marketplace or Anthropic's directory

  Publish a Claude Code plugin from your own marketplace.json or through Anthropic's directory, validate it, and check it with the HOL Guard Plugin Kit first.

• Publish a Gemini CLI extension to the extension gallery

  Get a Gemini CLI extension into the extension gallery: generate gemini-extension.json with the HOL Guard Plugin Kit, validate it, and tag the repository.

• Ship MCP servers for OpenCode users and get listed in its ecosystem

  Give OpenCode users a ready opencode.json for your MCP servers with the HOL Guard Plugin Kit, and get your project into the OpenCode ecosystem list.

• Publish an MCP server to the official MCP Registry

  Publish an MCP server to the official MCP Registry with server.json and mcp-publisher, using the HOL Guard Plugin Kit to generate and check server.json.

• Package a plugin for the Agent Plugins 1.0 specification

  Convert a plugin to the portable Agent Plugins 1.0 layout and check it against the specification with the HOL Guard Plugin Kit, section by section.

• Plugin listing webhooks: Slack, Discord and signed JSON

  Get new followers, reviews, findings, material changes and install milestones for your HOL plugin listing in Slack, Discord or a signed HTTPS endpoint.

• Approved plugin feeds: one policy, every format your team already deploys

  Publish the plugins and MCP servers your team approves as Claude Code managed settings, a Cursor team marketplace or an MCP registry, kept current from public evidence.