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Browser extension performance with WXT v1.0.0

Use this resource to write or review a WXT browser extension without slowing the browser

New

  • 543 downloads
  • 101 likes
  • 146 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install wxt-extension-performance

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 writes or reviews a WXT extension against 49 rules: service worker lifecycle, content script injection, messaging, storage and bundle reduction. It explains the expected gain for each change. You get a lighter and more responsive extension.

Mostly picked by

Updated November 2, 2026

Card for the “Browser extension performance with WXT” skill

Details

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

Similar resources

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What you get

  • references/: cards on bundle size and splitting by entrypoint
  • references/: cards on injection, execution worlds and injection timing

Good fit for

  • Your WXT extension is too heavy to install
  • A content script runs at the wrong moment on pages

Not for

    Tags

    • wxt
    • extension
    • browser
    • performance
    • bundle

    About

    You say

    “My WXT extension loads a large WebAssembly file into every page. Show me how to externalise it and shrink the bundle.”

    Card for the “Browser extension performance with WXT” skill

    Skill published by pproenca 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 write or review a WXT browser extension without slowing the browser
    3. Review and adjust the result

    Content preview

    Files

    • assets/templates/_template.md0.9 KB
    • LICENSE1.1 KB
    • metadata.json1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • README.md4 KB
    • references/_sections.md2 KB
    • references/bundle-analyze-size.md1.6 KB
    • references/bundle-externalize-wasm.md1.9 KB
    • references/bundle-minify-content-scripts.md2.1 KB
    • references/bundle-split-entrypoints.md1.7 KB
    • references/bundle-tree-shake-icons.md1.5 KB
    • references/inject-all-frames.md1.8 KB
    • references/inject-choose-correct-world.md1.9 KB
    • references/inject-dynamic-registration.md2 KB
    • references/inject-run-at-timing.md2.1 KB
    • references/inject-spa-navigation.md2.6 KB
    • references/inject-use-ctx-invalidated.md2 KB
    • references/inject-use-main-function.md1.3 KB
    • references/manifest-content-security-policy.md1.8 KB
    • references/manifest-cross-browser-compatibility.md2.2 KB
    • references/manifest-minimal-permissions.md1.8 KB
    • references/manifest-use-optional-permissions.md1.7 KB
    • references/manifest-web-accessible-resources.md1.9 KB
    • references/msg-avoid-circular-messages.md2.2 KB
    • references/msg-handle-no-receiver.md2.2 KB
    • references/msg-return-true-for-async.md2.1 KB
    • references/msg-type-safe-messaging.md2.6 KB
    • references/msg-use-ports-for-streams.md2.3 KB
    • references/msg-use-tabs-sendmessage.md1.9 KB
    • references/store-batch-operations.md2.3 KB
    • references/store-choose-storage-area.md1.9 KB
    • references/store-handle-quota-errors.md2 KB
    • references/store-use-define-item.md2.6 KB
    • references/store-versioned-migrations.md2.5 KB
    • references/store-watch-for-changes.md1.7 KB
    • references/svc-avoid-global-state.md1.3 KB
    • references/svc-declarative-net-request.md2 KB
    • references/svc-handle-install-update.md1.9 KB
    • references/svc-keep-alive-patterns.md2.8 KB
    • references/svc-offscreen-documents.md2.4 KB
    • references/svc-register-listeners-synchronously.md1.5 KB
    • references/ts-augment-browser-types.md2.1 KB
    • references/ts-avoid-any.md2.1 KB
    • references/ts-import-meta-env.md2.1 KB
    • references/ts-path-aliases.md1.8 KB
    • references/ts-strict-null-checks.md1.7 KB
    • references/ts-type-entrypoint-options.md1.5 KB
    • references/ts-use-browser-not-chrome.md1.9 KB
    • references/ts-use-imports-module.md2.3 KB
    • references/ui-avoid-layout-thrashing.md2.3 KB
    • references/ui-cleanup-on-unmount.md2.9 KB
    • references/ui-defer-rendering.md1.9 KB
    • references/ui-position-fixed-iframe.md2.3 KB
    • references/ui-sidepanel-persistence.md2.2 KB
    • references/ui-use-shadow-dom.md2.5 KB
    • SKILL.md7.6 KB

    Origin and licence

    Listed unmodified

    Author
    pproenca
    Source
    github.com/pproenca/dot-skills/tree/cf93c57cac89d6fc3e4194686000411567f5caf3/skills/.experimental/wxt-browser-extensions
    Licence
    MIT

    Notice

    « wxt-browser-extensions » (pproenca, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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