claude

browser-extension-engineering

Browser-extension-engineering team — agents (extension-architect, extension-implementation-engineer) for building, shipping, and maintaining cross-browser extensions on Manifest V3: the service-worker background model (and the MV2->MV3 lifecycle trap), content-script isolation + message passing, the permissions / host-permissions model and least-privilege posture, storage, the Chrome Web Store / Edge Add-ons / Firefox AMO review pipelines, and the WebExtensions cross-browser delta (Chrome callback vs Firefox browser.* promises). The extension runtime + manifest + store surface — distinct from frontend-engineering (app-grade React UI) and desktop-app-engineering (Electron/Tauri). skills (manifest-permissions-audit, store-submission-readiness), a knowledge bank (MV3 architecture + a permissions-minimization decision tree + a dated cross-browser capability note), best-practices. Security verdicts escalate to security-engineering. Requires ravenclaude-core@>=0.7.0.

9 on GitHubby Matt Corbettv0.2.2MITupdated today
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Plugin browser-extension-engineering from marketplace ravenclaude in mcorbett51090/RavenClaude. Commands read from the repo's manifest — today.

What it installs

Skills (3)

  • build-browser-extension

    End-to-end workflow to build a Manifest V3 browser extension: decide which context owns each piece of logic (content script vs MV3 service worker vs injected page script vs popup/options), wire messaging between contexts, request the narrowest permissions (activeTab -> optional -> host -> all_urls),

  • manifest-permissions-audit

    Audit a browser extension's manifest.json against the least-privilege bar and Manifest V3 conformance: every permission and host match justified, activeTab/optional-permission opportunities, no remotely-hosted code, scoped web_accessible_resources, and the store-review risk each entry carries. Reach

  • store-submission-readiness

    A pre-submission readiness checklist for shipping a browser extension to the Chrome Web Store, Edge Add-ons, and Firefox AMO: required listing metadata, the privacy + permissions justification, single-purpose conformance, data-disclosure forms, and the common rejection reasons to pre-empt. Reach for

Subagents (2)

  • extension-architect

    Design an MV3 extension's shape: component layout (background SW / content scripts / popup), messaging topology, least-privilege permissions, storage, and target-browser choice. NOT for writing the manifest/code (extension-implementation-engineer) or popup UI (frontend-engineering).

  • extension-implementation-engineer

    Build an MV3 extension: the manifest.json, the event-driven service worker (no persistent globals; the MV2→MV3 trap), content scripts + message passing, chrome.storage, per-store packaging. NOT for architecture/permissions design (extension-architect) or popup UI (frontend-engineering).

View source on GitHub mcorbett51090.github.io

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