Vercel AI SDK skills
vercel/aiThe AI SDK repo's skills: one public ai-sdk skill for building with the SDK plus about a dozen maintainer-only skills for the monorepo.
With caveats
Check first Depth 2/5
Markstream skills Claude skills
Eleven integration skills for the Markstream streaming Markdown renderers (Vue, Nuxt, React, Svelte, Angular) used in AI chat interfaces.
Our verdict Recommended
Focused, well-scoped integration skills for one maintained library; useless unless you use it.
What Markstream skills does
Markstream is a family of renderers for Markdown that is still arriving token by token, as in AI chat, SSE or WebSocket output, with Mermaid, KaTeX and streaming code blocks. This repository is the library itself, and it ships eleven skills in .agents/skills that help an agent integrate it. They cover install, migration, Vue 3 and Nuxt, Vue 2 and its CLI and Vite variants, React, Svelte, Angular, and custom components.
The skills are short procedures. The Angular one, for example, tells the agent to confirm Angular 20 or newer, install markstream-angular and only the optional peers requested, import the stylesheet and add KaTeX CSS if math is on. The install skill is the longest at about 9 KB, and the average is under 5 KB. The repo itself is large, with over 2,500 files and 31 eval-related files for the library. The README advises marked, markdown-it or react-markdown for finished documents and Markstream when content is still changing. The skills only matter if you adopt this specific library.
Good for
- Adding streaming Markdown to a Vue, Nuxt, React, Svelte or Angular chat UI
- Migrating between Markstream major versions
Not for
- Rendering finished Markdown documents
- Projects not using Markstream
What's inside depth 2/5
11 skills averaging 4.9 KB with a couple of reference files, no scripts inside the skill folders.
- Skills
- 11
- Reference docs
- 4
- Scripts
- 0
- Tests / evals
- 31
- Templates
- 0
- Avg SKILL.md
- 4.8 KB
Counted from the repository file tree. How we score depth.
Dependencies and costs
- markstream packages from npm for your framework
- Optional stream-diffs, Mermaid and KaTeX peers
Security review
Review before installingA set of markdown skills (plus openai.yaml agent stubs) that guide adding the markstream streaming-markdown renderer to Vue, React, Svelte, Angular, Nuxt and similar projects. They make no network calls themselves but have the agent install npm packages, including pre-release versions during migration. The library's own source was not in our copy, so only the skills were reviewed.
Worth knowing
- Installs packages or toolsThe install and migration skills tell the agent to add npm packages (markstream-vue/-react/-svelte etc., stream-diffs, optional Mermaid/KaTeX peers), some on the @next tag, using pnpm/npm..agents/skills/markstream-migration/references/vue-1x-to-2x.md:30
What we checked
The repository (2523 files) on Oct 29, 2026. Not a full review: 2480 of 2523 files were not downloaded (large repository; we reviewed the skill folders); it relies on code outside the repository: npm packages markstream-* and stream-markdown-parser / stream-diffs that the skills install; About 2,480 of the 2,523 repo files (the library source, docs, tests and CI) are not in our copy; only the skills and README were available.
NVIDIA SkillSpector static scan: 9 pattern hits (MCP Rug Pull 6, Data Exfiltration 3). The hits are the README's 'npx skills' install line and the star-history badge URL. The skill folders contain markdown and agent YAML only; there are no scripts, hooks or allowed-tools entries.
A review, not a certification. Skills change after we check them — read the files before installing.
License
MIT — commercial use allowed.
Can it run unattended?
Not really. They are one-time integration procedures with no loops or verification harness.
Alternatives to Markstream skills
FAQ
What are the Markstream skills?
They are eleven agent skills bundled with the Markstream library that guide an agent through installing and using its streaming Markdown renderer in Vue, React, Svelte, Angular and related setups.
How do I install markstream-vue?
Run pnpm add markstream-vue and import the component and its CSS, as the README shows. The skills are in .agents/skills of the repo and can be copied into your agent.
Markstream vs marked or react-markdown?
The README says to use marked, markdown-it or react-markdown for finished documents. Markstream is meant for Markdown that changes while the user reads, such as streamed LLM output.
Sources: GitHub repository (stars, license, file tree, last push Oct 27, 2026). Review based on the README and SKILL.md files as published.