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Build constraints for WebAssembly v1.0.0

Use this resource to fix a build or runtime failure for the WebAssembly target

New

  • 338 downloads
  • 176 likes
  • 147 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install wasm-build-constraints

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 checks the features enabled for wasm32, the absence of a Tokio runtime, the use of the sync extractor and the HTML size limit. You get a WASM build that respects the target's constraints.

Mostly picked by

Updated November 2, 2026

Card for the “Build constraints for WebAssembly” skill

Details

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

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What you get

  • SKILL.md: target features and critical constraints
  • SKILL.md: build configuration and the API pattern to follow

Good fit for

  • The wasm32 build fails on a dependency
  • An async function crashes the module in the browser

Not for

    Tags

    • webassembly
    • wasm
    • build
    • synchronous
    • target

    About

    You say

    “Xberg's wasm32 build fails on tokio. Find the cause and the fix.”

    Card for the “Build constraints for WebAssembly” skill

    Skill published by xberg-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 fix a build or runtime failure for the WebAssembly target
    3. Review and adjust the result

    Content preview

    Files

    • index.md0.2 KB
    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md2.8 KB

    Origin and licence

    Listed unmodified

    Author
    xberg-io
    Source
    github.com/xberg-io/xberg/tree/82b2f67583c3f2b7b14b67e62bdf949ee5601320/.ai-rulez/skills/wasm-constraints
    Licence
    MIT

    Notice

    « wasm-constraints » (xberg-io, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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