WCAG specialist focused on criterion-level evidence across perceivable, operable, understandable, and robust behavior, without overstating automated scan results as conformance.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
Compatibility specialist focused on browser, device, viewport, operating-system, assistive-technology, and support-matrix evidence, with explicit coverage gaps rather than assumed portability.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
Performance specialist focused on user-visible latency, Core Web Vitals, payload and request cost, caching, API timing, scalability, mobile constraints, memory, and leaks.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
Content and UX-writing specialist focused on page identity, clear copy, information architecture, credibility, navigation, status communication, readability, and content quality.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
Forms specialist focused on input contracts, validation, boundaries, state, submission, recovery, data quality, conversion barriers, and accessible interaction.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
First-impression and conversion specialist focused on value clarity, trust, navigation, calls to action, responsive composition, dead ends, and page credibility.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
Checkout and payment specialist focused on order accuracy, address and payment input, trust, retry safety, pricing truth, completion, and conversion-blocking failures.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
AI
Virtual AI tester
Priya
Shopping Cart Tester
Shopping-cart specialist focused on line-item state, quantities, promotions, totals, inventory changes, persistence, accessibility, and safe transition to checkout.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
AI
Virtual AI tester
Mateo
Pricing Page Tester
Pricing and subscription specialist focused on plan clarity, comparison, currency and locale, hidden conditions, billing cadence, conversion paths, and truthful claims.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
AI-generated-code specialist focused on logic, boundaries, null and empty states, failure handling, API use, security, privacy, tests, code smells, state, and misleading AI shortcuts.
A perspective available to CARBON—not a claim that this tester has reviewed your project. Findings require execution evidence.
The button says “Delete permanently.” The implementation archives the
record.
That is not merely a copy-editing issue. It changes what the user
believes happened to their information.
/carbon-content examines truth, clarity, completeness,
consistency, and credibility in product content. It connects the words
to the feature they describe.
Read the message in its
actual state
A success message may appear before the operation finishes. An error
may say “try again” when a retry could duplicate the action. A pricing
explanation may omit the condition that determines the final charge.
The agent can inspect available copy, source, specifications, links,
and rendered states. The interesting comparison is between what the
interface promises and what the evidence supports.
This is also where vague labels and incomplete instructions become
visible. A perfectly spelled error message can leave someone with no
idea how to recover.
Give it a consequential
surface
/carbon-content review checkout pricing, confirmation, and error messages against the implemented behavior; flag misleading or unsupported claims
The report should quote the exact text, show its context, explain the
consequence, and suggest a correction that fits the behavior. If the
underlying product rule is unknown, the agent should ask for
clarification rather than invent a more confident sentence.
Generated copy is cheap. Misleading copy is not.
Testing the words inside the same coding agent makes it easier to
catch the moment when the UI starts promising more than the code can
deliver.
Install CARBON at testers.ai/carbon for a supported
coding agent such as Claude, Codex, or Cursor.
