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Agent skill

Stackblitz Core Workflow B

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Design and implement a StackBlitz JavaScript SDK embed with an explicit project source, load strategy, UI options, persistence expectations, and responsive fallback.

MITAuto-check passed

Install Stackblitz Core Workflow B

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill stackblitz-core-workflow-b -a claude-code

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

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace stackblitz-core-workflow-b --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/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/stackblitz-core-workflow-b .claude/skills/stackblitz-core-workflow-b && 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
stackblitz-core-workflow-b
GitHub stars
2.8k
Token cost
~1.2k tokens
SKILL.md length
489 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Design and implement a StackBlitz JavaScript SDK embed with an explicit project source, load strategy, UI options, persistence expectations, and responsive fallback.

  • Works in 6 steps: Inspect the host page, choose the… → Select one SDK method and a pinned SDK… → Define height, view, theme, openFile,… → …
  • Product pages need an interactive code example without owning a custom WebContainer runtime
  • SKILL.md covers Overview, Prerequisites, Tool Discipline and Current Contract, plus 7 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Stackblitz Core Workflow B is an agent skill from jeremylongshore/tons-of-skills-marketplace. Design and implement a StackBlitz JavaScript SDK embed with an explicit project source, load strategy, UI options, persistence expectations, and responsive fallback. Use when documentation, training, or product pages need an interactive code example without owning a custom WebContainer runtime. Trigger with "embed StackBlitz", "StackBlitz SDK project", or "interactive code example".

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-docs.md`). Compatibility notes: Designed for Claude Code

It works with JavaScript. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Product pages need an interactive code example without owning a custom WebContainer runtime
  • With embed StackBlitz
  • StackBlitz SDK project
  • Interactive code example

Example prompts

  • “embed StackBlitz”
  • “StackBlitz SDK project”
  • “interactive code example”
  • “/stackblitz-core-workflow-b”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Glob, Grep, WebFetch, Write, Edit

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Inspect the host page, choose the authoritative project source, and classify its sensitivity.
  2. Select one SDK method and a pinned SDK version from the repository lockfile.
  3. Define height, view, theme, openFile, and clickToLoad from the user journey; avoid deprecated options.
  4. Add a titled container, loading state, error state, and accessible static link or code fallback.
  5. Reconcile CSP, privacy disclosure, responsive layout, and browser support with the site owner.
  6. Test initial load, user-triggered load, failure, keyboard flow, narrow viewport, and navigation cleanup.

What it can do on your machine

Read from SKILL.md and the folder at commit 80f86df. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Glob
    • Grep
    • WebFetch
    • Write
    • Edit

    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

    Links to these hosts (documentation or services it may open):

    • developer.stackblitz.com

    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.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Stackblitz Core Workflow B loads about 1.2k tokens when it runs, and up to ~1.4k if it reads all its reference files. Until then it costs about 103 tokens; SKILL.md has 489 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~103
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.4k

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 jeremylongshore/tons-of-skills-marketplace at commit 80f86df, republished under its MIT licence (© jeremylongshore). 489 words, ~1,154 tokens.

Download SKILL.mdSave it as .claude/skills/stackblitz-core-workflow-b/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
stackblitz-core-workflow-b
description
Design and implement a StackBlitz JavaScript SDK embed with an explicit project source, load strategy, UI options, persistence expectations, and responsive fallback. Use when documentation, training, or product pages need an interactive code example without owning a custom WebContainer runtime. Trigger with "embed StackBlitz", "StackBlitz SDK project", or "interactive code example".
allowed-tools
Read, Glob, Grep, WebFetch, Write, Edit
compatibility
Designed for Claude Code
argument-hint
[project-path] [project-id|github-path|inline]
version
1.7.0
author
Jeremy Longshore <jeremy@intentsolutions.io>
license
MIT
tags
saas, stackblitz, embedding, documentation
model
inherit
effort
medium

StackBlitz Embed Integration

Overview

This skill selects and implements the supported SDK method for an existing StackBlitz project, a public GitHub path, or an inline project. It treats the embed as third-party executable content with explicit loading, persistence, accessibility, and browser-support boundaries.

Prerequisites

  • A named host page and the source of the project to embed
  • Confirmation that source code is public and safe to send to or execute through StackBlitz
  • A static fallback and intended responsive behavior

Tool Discipline

Use Read, Glob, and Grep to inspect the host component, content source, CSP, existing third-party scripts, and responsive patterns. Use WebFetch only for current official StackBlitz documentation. Use Write or Edit after the embed source and trust boundary are confirmed.

Current Contract

  • Use embedProjectId for an existing StackBlitz project, embedGithubProject for a public GitHub repository/path, and embedProject for a generated inline project.
  • Inline projects live in browser memory unless a user forks them into a StackBlitz account; do not promise automatic persistence.
  • Use current EmbedOptions; do not depend on deprecated forceEmbedLayout behavior.
  • clickToLoad is a useful consent/performance boundary for expensive or numerous embeds.
  • Treat the returned VM instance as an integration capability with an explicit owner and disposal path.
  • WebContainer-based embeds have stricter browser constraints than static code fallbacks.

Authentication

Do not embed private repositories, secrets, licensed source, or authenticated application state through a public project method. If enterprise origin or private access is required, stop and obtain the documented organization configuration and security approval.

Workflow

  1. Inspect the host page, choose the authoritative project source, and classify its sensitivity.
  2. Select one SDK method and a pinned SDK version from the repository lockfile.
  3. Define height, view, theme, openFile, and clickToLoad from the user journey; avoid deprecated options.
  4. Add a titled container, loading state, error state, and accessible static link or code fallback.
  5. Reconcile CSP, privacy disclosure, responsive layout, and browser support with the site owner.
  6. Test initial load, user-triggered load, failure, keyboard flow, narrow viewport, and navigation cleanup.
Show full SKILL.md (157 more words)Show less

Approval Boundaries

Require explicit authorization before adding a third-party executable embed, changing CSP, loading private code, selecting an enterprise origin, or adding analytics. Show the data/source flow and fallback before deployment.

Output

Return the selected source and SDK method, package/version evidence, embed options, trust and persistence semantics, accessibility/fallback behavior, tests run, changed files, rollout, and rollback.

Error Handling

ConditionResponse
GitHub project cannot loadVerify the public repository, branch/tag/commit, and optional subfolder path.
Inline work disappearsExplain browser-memory semantics and offer an explicit fork/export path.
Embed breaks narrow layoutsUse a responsive container and preserve the static fallback.
Host CSP blocks the embedPropose the narrow official origins; never disable CSP wholesale.

Examples

Given a public tutorial repository pinned to a commit, add a click-to-load embed opening the relevant file and provide a normal GitHub link plus static code sample when the runtime cannot load.

Resources

© jeremylongshore, 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 (references) in skills/.curated/stackblitz-core-workflow-b of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/official-docs.md

Open the folder on GitHubat commit 80f86df

Compare with similar skills

Stackblitz Core Workflow B 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.

Stackblitz Core Workflow B compared with similar skills
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Stackblitz Core Workflow B this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.2kAutomated safety check: PassMIT
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Figma use_figma Plugin API Ruleswarpdotdev/warp65k4 repos~4.4kAutomated safety check: PassAGPL-3.0
GSAP Core Animationgreensock/gsap-skills16k4 repos~3.7kAutomated safety check: PassMIT
JavaScript Concept Fact Checkerleonardomso/33-js-concepts67k1 repos~5kAutomated safety check: PassMIT

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Works with

Questions about Stackblitz Core Workflow B

What does Stackblitz Core Workflow B do?

Design and implement a StackBlitz JavaScript SDK embed with an explicit project source, load strategy, UI options, persistence expectations, and responsive fallback. Stackblitz Core Workflow B is an agent skill from jeremylongshore/tons-of-skills-marketplace. Design and implement a StackBlitz JavaScript SDK embed with an explicit project source, load strategy, UI options, persistence expectations, and responsive fallback.

When should I use Stackblitz Core Workflow B?

Stackblitz Core Workflow B fits situations like: product pages need an interactive code example without owning a custom WebContainer runtime; with embed StackBlitz; stackBlitz SDK project; interactive code example.

How do I install Stackblitz Core Workflow B in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill stackblitz-core-workflow-b -a claude-code`. Or copy the skill folder (skills/.curated/stackblitz-core-workflow-b in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/stackblitz-core-workflow-b in your project. Claude Code loads it when a task matches its description.

How do I install Stackblitz Core Workflow B in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill stackblitz-core-workflow-b -a codex`. Or copy the skill folder (skills/.curated/stackblitz-core-workflow-b in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/stackblitz-core-workflow-b in your project. Codex loads it when a task matches its description.

Can I use Stackblitz Core Workflow B 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 jeremylongshore/tons-of-skills-marketplace --skill stackblitz-core-workflow-b -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/stackblitz-core-workflow-b, .gemini/skills/stackblitz-core-workflow-b, .github/skills/stackblitz-core-workflow-b and .opencode/skills/stackblitz-core-workflow-b in your project.

What does Stackblitz Core Workflow B need to run?

SKILL.md names no scripts, command-line tools or credentials: Stackblitz Core Workflow B is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, WebFetch, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code.

Does Stackblitz Core Workflow B access the network?

SKILL.md names 1 domain. As links in the text: developer.stackblitz.com. This is read from the text; nothing was executed.

Is Stackblitz Core Workflow B 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 Stackblitz Core Workflow B use?

Stackblitz Core Workflow B is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Stackblitz Core Workflow B use?

About 1.2k tokens (SKILL.md is roughly 4.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 263 tokens, read only when the agent opens those files.

What are the alternatives to Stackblitz Core Workflow B?

Skills that share tags, products or a category with Stackblitz Core Workflow B: Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), Tailwindcss Development (anonaddy/anonaddy, 4.9k stars), Figma use_figma Plugin API Rules (warpdotdev/warp, 65k stars) and GSAP Core Animation (greensock/gsap-skills, 16k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Stackblitz Core Workflow B?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,825 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 9, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.