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Agent skill

Markstream Svelte

by Simon-He95 in Simon-He95/markstream-vue

Integrate the beta markstream-svelte package in Svelte 5 or SvelteKit apps.

MITAuto-check passedFrontend & Design

Install Markstream Svelte

skills CLI
$ npx skills add Simon-He95/markstream-vue --skill markstream-svelte -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Simon-He95/markstream-vue markstream-svelte --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Simon-He95/markstream-vue.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/markstream-svelte .claude/skills/markstream-svelte && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
markstream-svelte
GitHub stars
3k
Token cost
~559 tokens
SKILL.md length
228 words
Files
2
Skills in repo
11
Repo updated
First seen
Licence
MIT

At a glance

Integrate the beta markstream-svelte package in Svelte 5 or SvelteKit apps.

  • Codex needs Svelte 5 runes
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • CSS and optional peers
  • Smooth streaming

What it does

Markstream Svelte is an agent skill from Simon-He95/markstream-vue. Integrate the beta markstream-svelte package in Svelte 5 or SvelteKit apps. Use when Codex needs Svelte 5 runes, CSS and optional peers, smooth streaming, worker setup, renderer-local or scoped custom components, or SSR-safe boundaries. Svelte 4 is unsupported.

Its SKILL.md is about 560 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).

It sits in Frontend & Design. It works with Svelte, SvelteKit and Vue.js. The repository describes itself as: Multi-framework streaming Markdown renderers for AI apps: Vue/Nuxt, React/Next.js, Svelte, and Angular, with Mermaid, KaTeX, stream-diffs code blocks, safe HTML, and low-jitter… The licence is MIT.

When your agent uses it

  • Codex needs Svelte 5 runes
  • CSS and optional peers
  • Smooth streaming
  • Scoped custom components

Example prompts

  • “/markstream-svelte”

What it can do on your machine

Read from SKILL.md and the folder at commit d5d0c00. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Markstream Svelte loads about 559 tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 228 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~70
When it runs · the whole SKILL.md, loaded when a task matches
~559

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Simon-He95/markstream-vue at commit d5d0c00, republished under its MIT licence (© Simon-He95). 228 words, ~559 tokens.

Download SKILL.mdSave it as .claude/skills/markstream-svelte/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
markstream-svelte
description
Integrate the beta markstream-svelte package in Svelte 5 or SvelteKit apps. Use when Codex needs Svelte 5 runes, CSS and optional peers, smooth streaming, worker setup, renderer-local or scoped custom components, or SSR-safe boundaries. Svelte 4 is unsupported.

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 content and use built-in smooth streaming first.
      • smoothStreaming="auto" is the default and activates when typewriter={true} or maxLiveNodes <= 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 renderer starts streaming and later switches to history when final={true}.
      • Streaming: smoothStreaming="auto", fade={false}, typewriter={true}. This is a conservative visual/performance choice, not an API incompatibility. This adapter has not adopted Vue 3's bounded append fades, so verify its animation behavior before enabling both.
      • 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}.
    • Use nodes + final for worker-preparsed content, shared AST stores, or custom AST control.
  • Use $props() and callbacks.
  • Workers: setKaTeXWorker, setMermaidWorker, workers/*?worker.
  • Custom UI: prefer the renderer-local customComponents prop for one surface; use scoped setCustomComponents, customId, and customHtmlTags when 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.md
  • docs/frameworks/svelte.md

© Simon-He95, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in .agents/skills/markstream-svelte of Simon-He95/markstream-vue.

  • SKILL.md
  • agents/openai.yaml

Open the folder on GitHubat commit d5d0c00

Compare with similar skills

Markstream Svelte next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Markstream Svelte compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Markstream Svelte this skillSimon-He95/markstream-vue3k—~559Automated safety check: PassMIT
GSAP in Vue, Nuxt and Sveltegreensock/gsap-skills16k4 repos~2.6kAutomated safety check: PassMIT
GSAP Core Animationgreensock/gsap-skills16k4 repos~3.7kAutomated safety check: PassMIT
Svelte Core Best Practicesrilldata/rill2.9k4 repos~1.8kAutomated safety check: PassApache-2.0
Boneyard0xGF/boneyard7.5k—~2.2kAutomated safety check: NotesMIT
Kill AI Slopyetone/kill-ai-slop1.3k—~1.4kAutomated safety check: PassApache-2.0

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    16k GitHub starsUsed in 4 repos~2.6k tokens
    Frontend & DesignAuto-check passed

  • GSAP Core Animation

    greensock/gsap-skills

    Covers the GSAP core API for tweens, easing, staggers, defaults and matchMedia, and when to choose GSAP over CSS animations or other JavaScript animation libraries.

    16k GitHub starsUsed in 4 repos~3.7k tokens
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  • Svelte Core Best Practices

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    Rules for writing idiomatic Svelte 5 code: when to reach for runes like state, derived and effect, and how to handle props, attachments and bindings.

    2.9k GitHub starsUsed in 4 repos~1.8k tokens
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    Use boneyard-js to add, configure, debug, or rebuild skeleton screens.

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More from Simon-He95/markstream-vue

All 11 skills in this repo

  • Markstream Custom Components

    Simon-He95/markstream-vue

    Override built-in Markstream node renderers and add trusted custom tags across Vue, React, Svelte, and Angular.

    3k GitHub stars~955 tokensUpdated 4 days ago
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  • Markstream Install

    Simon-He95/markstream-vue

    Install and wire markstream-vue, markstream-react, markstream-vue2, markstream-angular, or markstream-svelte into an existing repository.

    3k GitHub stars~2.2k tokensUpdated 4 days ago
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  • Markstream Angular

    Simon-He95/markstream-vue

    Integrate the alpha markstream-angular package into an Angular 20+ app.

    3k GitHub starsUsed in 1 repo~802 tokens
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  • Markstream Migration

    Simon-He95/markstream-vue

    Audit and migrate existing Markdown rendering to Markstream, or upgrade a markstream-vue 1.x integration to 2.x.

    3k GitHub stars~2k tokensUpdated 4 days ago
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  • Markstream Nuxt

    Simon-He95/markstream-vue

    Integrate markstream-vue into a Nuxt 3 or Nuxt 4 app. An agent skill from Simon-He95/markstream-vue.

    3k GitHub starsUsed in 1 repo~1.3k tokens
    Auto-check passed

  • Markstream Vue2

    Simon-He95/markstream-vue

    Integrate markstream-vue2 into a Vue 2.6 or 2.7 app. An agent skill from Simon-He95/markstream-vue.

    3k GitHub starsUsed in 1 repo~733 tokens
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Works with

Categories

Questions about Markstream Svelte

What does Markstream Svelte do?

Integrate the beta markstream-svelte package in Svelte 5 or SvelteKit apps. Markstream Svelte is an agent skill from Simon-He95/markstream-vue. Integrate the beta markstream-svelte package in Svelte 5 or SvelteKit apps.

When should I use Markstream Svelte?

Markstream Svelte fits situations like: Codex needs Svelte 5 runes; CSS and optional peers; smooth streaming; scoped custom components.

How do I install Markstream Svelte in Claude Code?

Run `npx skills add Simon-He95/markstream-vue --skill markstream-svelte -a claude-code`. Or copy the skill folder (.agents/skills/markstream-svelte in Simon-He95/markstream-vue) into .claude/skills/markstream-svelte in your project. Claude Code loads it when a task matches its description.

How do I install Markstream Svelte in Codex?

Run `npx skills add Simon-He95/markstream-vue --skill markstream-svelte -a codex`. Or copy the skill folder (.agents/skills/markstream-svelte in Simon-He95/markstream-vue) into .agents/skills/markstream-svelte in your project. Codex loads it when a task matches its description.

Can I use Markstream Svelte in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Simon-He95/markstream-vue --skill markstream-svelte -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/markstream-svelte, .gemini/skills/markstream-svelte, .github/skills/markstream-svelte and .opencode/skills/markstream-svelte in your project.

What does Markstream Svelte need to run?

SKILL.md names no scripts, command-line tools or credentials: Markstream Svelte is instructions for the agent only.

Does Markstream Svelte access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Markstream Svelte safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Markstream Svelte use?

Markstream Svelte is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Markstream Svelte use?

About 559 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Markstream Svelte?

Skills that share tags, products or a category with Markstream Svelte: GSAP in Vue, Nuxt and Svelte (greensock/gsap-skills, 16k stars), GSAP Core Animation (greensock/gsap-skills, 16k stars), Svelte Core Best Practices (rilldata/rill, 2.9k stars) and Boneyard (0xGF/boneyard, 7.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Markstream Svelte?

Simon-He95 (a GitHub user) maintains it in Simon-He95/markstream-vue, which has 3,024 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 5, 2026.

Source: Simon-He95/markstream-vue on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.