PrismDevelopment
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Prism — Inspect the page. Fix what matters.
Audit the live page across accessibility, UX, SEO, performance, and security; inspect DOM evidence; extract design tokens; compare visual regressions; and ask a bring-your-own-key AI co-pilot for prioritized fixes.
- Version
- 0.3.0
- Rating
- Unrated
- Category
- Development
- AI
- On-device + BYOK
- Storage
- Local-first
Feel it before you add it
What Prism actually does
One score. Every signal.
Run a rule-based audit against the page you are viewing. Prism brings accessibility, UX, SEO, performance, and security findings into one prioritized workbench, with the evidence engineers need to act.
- Five audit dimensions in one local pass
- Findings ranked by severity with DOM evidence
- Core Web Vitals and page-level diagnostics
A co-pilot that can see the page
Ask what to fix first, investigate a finding, or generate a plan from the current page. With your own provider configured, Prism can attach relevant page context and use tightly scoped DOM tools to ground its answer.
- Frontend, WCAG, UX, performance, and SEO personas
- Optional page context, vision, and DOM tool calls
- Direct requests to the provider or local endpoint you choose
Inspect anything. Understand everything.
Select an element on the live page and examine its selector, semantics, accessible name, size, contrast, computed styles, and surrounding DOM evidence without leaving the side panel.
- Point-and-inspect overlay on the current page
- Accessibility anatomy alongside CSS evidence
- Reversible previews before you change source code
Turn any site into tokens
Extract the page's recurring colors, typography, spacing, and radii, then copy individual values or export a structured theme as a practical starting point for implementation.
- Colors ranked from the rendered page
- Typography, spacing, and radius scales
- CSS variables, JSON, and Tailwind theme exports
Audit history without a telemetry trail
Rule-based audits run in Chrome. Completed audits can be kept locally for before-and-after comparison, including score changes, issue churn, layout fingerprints, and optional visual snapshots.
- Up to 60 audit snapshots in Chrome local storage
- Up to 10 visual captures per origin in IndexedDB
- No Selfhood account, analytics, advertising, or telemetry
The details that make Prism feel like Prism
Prism Score
Five disciplines resolved into one prioritized audit.
Rule engine
Deterministic checks run against the live page.
Expert personas
Change the co-pilot's lens without changing tools.
Live inspection
Move from finding to the exact element and evidence.
Token extraction
Lift color, type, spacing, and radius from any site.
Visual history
Compare runs, issue churn, layout moves, and captures.
Prism, up close
Not a policy summary. The actual behaviour.
Rule-based audits and saved history stay in your Chrome profile; Prism has no Selfhood backend or telemetry.
With a cloud provider configured, running an audit automatically requests an AI summary and sends the audit context directly to that provider.
Chat, vision, deep analysis, and visual comparison send only the context needed for the action to your chosen cloud or local endpoint.
Asked, answered
No for local audits, inspection, token extraction, exports, history, and most page tools. AI summaries, chat, deep analysis, vision, and AI comparison need your own cloud-provider key or a compatible local model endpoint.