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Threat model for WebContainers v1.0.0

Use this resource to threat-model a WebContainer or StackBlitz embed

New

  • 324 downloads
  • 207 likes
  • 174 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install webcontainer-security-threat-model

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent builds a threat model across host, runtime, user code, filesystem, dependencies, network, preview, secrets and persistence boundaries, then proposes bounded hardening. You get a securing plan grounded in the repository.

Mostly picked by

Updated November 2, 2026

Card for the “Threat model for WebContainers” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md : threat model, boundaries and hardening plan
  • references/official-docs.md : official WebContainers documentation

Good fit for

  • You want to run untrusted code in the browser
  • You are enabling private packages in an embedded IDE

Not for

    Tags

    • webcontainers
    • security
    • threats

    About

    You say

    “Threat-model our WebContainer IDE before we allow private packages.”

    Card for the “Threat model for WebContainers” skill

    Skill published by Jeremy Longshore <jeremy@intentsolutions.io> under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to threat-model a WebContainer or StackBlitz embed
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/official-docs.md1.2 KB
    • SKILL.md5.1 KB

    Origin and licence

    Listed unmodified

    Author
    Jeremy Longshore <jeremy@intentsolutions.io>
    Source
    github.com/jeremylongshore/tons-of-skills-marketplace/tree/ab85a061f7bcc039dac13ee193de7a4cd4388571/skills/.curated/stackblitz-security-basics
    Licence
    MIT

    Notice

    « stackblitz-security-basics » (Jeremy Longshore <jeremy@intentsolutions.io>, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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