Markstream Vue 2

Use this skill when the host app is Vue 2 and not specifically a Vue CLI / Webpack 4 edge case.

Workflow

1. Confirm the repo is Vue 2.6 or 2.7.
2. Install markstream-vue2.

- Add @vue/composition-api only when the repo is Vue 2.6 and uses Composition API patterns.

1. Import markstream-vue2/index.css after resets.
2. Start with <MarkdownRender :content="markdown" />.

- For AI chat or streaming UIs, keep content and use built-in smooth streaming first. - smooth-streaming="auto" is the default and activates when typewriter=true or max-live-nodes <= 0. - typewriter only controls the blinking cursor and defaults to false. - fade controls node enter and streamed-text fade animations and defaults to true. - Streaming vs recovering history: in chat UIs the same MarkdownRender starts streaming and later switches to history when final=true. - Streaming: smooth-streaming="auto", :fade="false", typewriter=true. Smooth pacing handles gradual appearance; fade would flicker. - Recovering history: :smooth-streaming="false", :fade="true", typewriter=false. Content is already complete — pacing would slow it down, but fade gives a polished entry animation. - Dynamic switch: :smooth-streaming="isStreaming ? 'auto' : false", :fade="!isStreaming". - Move to nodes + final only for worker-preparsed content, shared AST stores, or custom AST control. - Remember that html-policy now defaults to safe, and Mermaid strict mode is on by default through mermaid-props.

1. Use scoped custom component mappings when the task needs overrides or trusted tags.
2. Validate with the smallest useful dev or build command.

Default Decisions

• Vue 2.7 can use built-in Composition API support.
• Vue 2.6 needs @vue/composition-api only when the codebase actually relies on Composition API.
• If the repo is Vue CLI / Webpack 4, prefer markstream-vue2-cli.
• If the repo is Vue 2 plus Vite worker imports, prefer markstream-vue2-vite.
• Keep html-policy="safe" and Mermaid strict mode unless the task is preserving trusted legacy rendering.
• If a trusted surface needs older behavior, use html-policy="trusted" and :mermaid-props="{ isStrict: false }" only on that surface and explain why.

Useful Doc Targets

• docs/guide/vue2-quick-start.md
• docs/guide/vue2-installation.md
• docs/guide/vue2-components.md
• docs/guide/troubleshooting.md