markstream-vue is a family of Markdown renderers that display AI-generated text while it is still arriving, including unfinished formatting, code blocks, diagrams, and mathematical notation. It is for AI chat interfaces built with Vue and other supported frameworks, with markstream-vue targeting Vue 3, Nuxt, and VitePress. The catalogue entries provide agent guidance for using the renderer family.
Borrowing it
Nothing to install: this file belongs to Simon-He95/markstream-vue. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Simon-He95/markstream-vue/main/.agents/skills/markstream-svelte/SKILL.mdgit clone --depth 1 https://github.com/Simon-He95/markstream-vueWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/simon-he95/markstream-vue/markstream-svelte)<a href="https://agentmods.dev/skills/simon-he95/markstream-vue/markstream-svelte"><img src="https://agentmods.dev/badge/skills/simon-he95/markstream-vue/markstream-svelte.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00067 | $0.00506 |
| Opus 5 | $0.00034 | $0.00253 |
| Sonnet 5 | $0.00013 | $0.00101 |
| Haiku 4.5 | $0.00007 | $0.00051 |
Grade A, and why
markstream-svelte scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Markstream Svelte
- Confirm Svelte 5; ask Svelte 4 users to upgrade.
- Add package and only requested peers.
- Import CSS after resets; KaTeX CSS for math.
- Treat the package as beta and confirm the app accepts that API maturity.
- Default to
<MarkdownRender {content} />.- For streaming AI chat, keep
contentand use built-in smooth streaming first.smoothStreaming="auto"is the default and activates whentypewriter={true}ormaxLiveNodes <= 0.typewriteronly controls the blinking cursor and defaults tofalse.fadecontrols node enter and streamed-text fade animations and defaults totrue.
- Streaming vs recovering history: in chat UIs the same renderer starts streaming and later switches to history when
final={true}.- Streaming:
smoothStreaming="auto",fade={false},typewriter={true}. Smooth pacing handles gradual appearance; fade would flicker. - Recovering history:
smoothStreaming={false},fade={true},typewriter={false}. Content is already complete — pacing would slow it down, but fade gives a polished entry animation. - Dynamic switch:
smoothStreaming={isStreaming ? 'auto' : false},fade={!isStreaming}.
- Streaming:
- Use
nodes+finalfor worker-preparsed content, shared AST stores, or custom AST control.
- For streaming AI chat, keep
- Use
$props()and callbacks. - Workers:
setKaTeXWorker,setMermaidWorker,workers/*?worker. - Custom UI: prefer the renderer-local
customComponentsprop for one surface; use scopedsetCustomComponents,customId, andcustomHtmlTagswhen shared registration is intentional. - Keep browser-only workers and heavy peers behind SvelteKit client boundaries.
- Verify with
svelte-check, build, or e2e.
Useful Doc Targets
docs/guide/svelte.mddocs/frameworks/svelte.md
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 32 lines · 67 tokens per session scan A d047858c4d56
markstream-svelte is a skill published in the GitHub repository Simon-He95/markstream-vue (2,993 stars, last pushed today), licensed MIT. It adds 67 tokens to every session and 506 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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