Keep the extension thin and exclude backend keys/research datasets
Keep the extension thin and exclude backend keys/research datasets, trading offline independence for a smaller distributable privacy surface.
MulaLens - Workplace Context Extension
extension
Chrome extension that adds identity, workplace, salary, job, story, and cited-research context to Deshi Mula company pages.
- Role
- Product design and browser-extension engineering
- Scope
- Browser integration, provider workflows, and privacy
- Status
- GitHub release available
Problem
Deshi Mula company pages surface community conversation, but job seekers need structured identity, salary, workplace, story, and cited-research context at the decision point.
Constraints
- C1
Salary/workplace reports may be community-submitted and require independent verification.
- C2
The extension depends on the hosted b4join API and cannot operate as a complete offline research system.
- C3
Page matching and injection must remain narrow to avoid collecting unrelated browsing data.
Architecture
Deshi Mula page detection/content script; injected research panel UI; typed thin client to hosted b4join endpoints; release-built Manifest V3 package plus public documentation site.
01
Page integration
Deshi Mula page detection/content script.
02
Extension interface
Injected research panel UI.
03
Provider boundary
Typed thin client to hosted b4join endpoints.
04
Storage and delivery
Release-built Manifest V3 package plus public documentation site.
Decisions
Attach context only to recognized company pages
Attach context only to recognized company pages instead of broad browsing surveillance.
Preserve source citations and caveats
Preserve source citations and caveats rather than presenting community data as authoritative.
Contribution
- Implemented company-page detection and panel injection.
- Built identity, workplace, salary, job, story, and cited-research sections.
- Integrated hosted b4join lookup endpoints and error/loading states.
- Produced release packaging, store artwork, privacy docs, ADRs, and checks.
Outcomes
- Users can open workplace context without leaving the company page.
- Inspect salary and narrative signals alongside source links.
- Install a packaged release.
- Understand that evidence is advisory and API-dependent.
Product screenshot
Verified stack
- TypeScript
- Chrome Manifest V3
- Chrome Extensions API
- esbuild
- TanStack Start
- React
- Tailwind CSS
- Vitest
- Netlify
- GitHub Actions
- CI/CD
- Git
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