openagent-plugin-authoring

Use when creating or changing an OpenAgent Agent Plugin package, including plugin.json fields, package containment, bundled Agent Skills, mcp.json stdio or streamable-http servers, slash commands, sidebar views, automation hooks, message policies, and PLUGIN_DATA state. Covers the Agent Plugins 1.0.0 rules the OpenAgent loader enforces and the diagnostics it reports when a component is skipped.