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 record saved. Then someone exported it, opened the file, and
imported it again. Now the leading zeros are gone and the date means
something different.
The original form test may still be green.
/carbon-data focuses on integrity across validation,
persistence, transactions, migration, synchronization, import, and
export. It asks whether the information survives the journey with its
meaning intact.
Check the round trip
Use synthetic records with deliberate distinctions: empty versus
missing, zero versus no value, long identifiers, Unicode, and values
close to a boundary. Follow them through the layers the project actually
exposes.
The expected result depends on the contract. Some normalization is
intended. Silent truncation is not made acceptable just because the
database permitted it.
Source inspection can reveal risky conversions. Runtime read-back
helps establish which transformations really occur. A planned migration
check is not evidence that the migration succeeded.
Keep the original safe
/carbon-data test export and reimport on an isolated copy with synthetic records; check identifiers, dates, nulls, and precision
Corruption, deletion, and migration experiments need disposable data
and clear authority. The report should connect the input,
transformation, observed output, and violated expectation, with enough
detail to reproduce the issue.
This is where an agent can be especially helpful: holding several
representations of the same information in view and asking where their
meanings diverge.
Your customers do not care which layer lost the data. They care that
the information they trusted you with comes back correctly.
Install CARBON at testers.ai/carbon for a supported
coding agent such as Claude, Codex, or Cursor.
