Kosta Codex Plugins

Personal Codex plugin marketplace for Kosta's local and GitHub-distributed Codex plugins.

This repository is a Codex marketplace root. Codex discovers plugins through:

• .agents/plugins/marketplace.json for marketplace metadata and plugin ordering.
• plugins/<plugin-name>/.codex-plugin/plugin.json for each plugin manifest.
• Optional plugin assets, skills, hooks, MCP servers, and app manifests inside each plugin folder.

Install

Install this marketplace into Codex:

codex plugin marketplace add ildunari/codex-plugins

In the Codex app, install plugins from the Kosta Codex Plugins marketplace. For CLI/headless use, run the local installer from a checkout after adding/updating the marketplace:

python3 scripts/install_local_plugin.py ppt-modernizer

The installer mirrors Codex's cache layout for enabled plugins and adds the matching [plugins."<plugin>@kosta-codex-plugins"] entry to ~/.codex/config.toml if it is missing.

For local marketplace development, install directly from the repository root:

codex plugin marketplace add /Users/kosta/LocalDev/codex-plugins

Refresh after pulling updates:

codex plugin marketplace upgrade kosta-codex-plugins

Layout

.agents/plugins/marketplace.json
plugins/
  ppt-modernizer/
    .codex-plugin/plugin.json
    skills/ppt-modernizer/SKILL.md
    assets/

Validation

Run the local validation helper:

python3 scripts/validate_marketplace.py

The helper checks JSON syntax, required marketplace fields, plugin path existence, matching plugin names, and required manifest presentation fields.

Confirm a plugin is visible to Codex:

codex exec --skip-git-repo-check "Do you have a skill named ppt-modernizer available in your skill list? Reply exactly yes or no."