Engineering notes

Short, dated, frequently updated. What KailxLabs shipped, when, and why.

Each note documents a specific shipping update on the KailxLabs domain. The notes are the recency signal AI engines reward and the audit trail clients use to see what changes between engagements.

Open source ·

Open sourcing the methodology: claude-rank, Ultraship, and codesight

The KailxLabs methodology is open. So is the engineering. Three Claude Code plugins published free to npm under the HouseofMVPs publisher account ship the same scanners, builders, and token tooling KailxLabs runs on paid client engagements.

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Engine behavior ·

Why Perplexity cites Reddit 46.7 percent of the time, and what that means for specialty clinics

Perplexity gets close to half of its top citations from Reddit threads. The reason is structural, not editorial. Clinic owners who understand it can route a meaningful share of consult inquiries through threads they barely participate in today.

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Diagnostic ·

The Wix curl test: a 60 second diagnostic that tells a clinic owner whether AI search is even possible on the current site

A single command in Terminal, takes under a minute, gives a binary answer to the question that determines whether AEO is worth attempting on the current site. Most Wix and Squarespace clinic owners do not know this test exists.

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Market shift ·

How GLP 1 telehealth changed bariatric surgical intake economics, and what surgeons should do

Independent bariatric surgical centers that continued competing for early stage cash pay weight loss patients lost market share to direct to consumer GLP 1 telehealth between 2023 and 2025. The structural fix is positional, not promotional.

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Diagnostic ·

Reading a robots.txt for AI crawler exposure: the six user agents to check before any other AI search work

A clinic owner can determine in two minutes whether their current site is silently blocking AI crawlers by opening /robots.txt and looking for six specific user agent declarations. Most Wix sites built before 2024 fail this check by default.

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Methodology ·

The 13 week citation decay window: why monthly content refresh matters for AI search

AI engines downgrade source authority for domains that have not produced meaningfully new content in 13 weeks. The exact mechanism varies by engine but the practical effect is consistent: stale specialty business websites lose citation share monthly.

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Vertical analysis ·

Why DSO chains dominate cosmetic dental AI search in 2026, and how independent practices reclaim share

Corporate dental chains spend an order of magnitude more on technical SEO infrastructure than independent cosmetic dental practices, and the cosmetic dental category is consequently dominated by chains in ChatGPT, Perplexity, Gemini, and Google AI Overviews. The displacement pattern is fixable, but only structurally.

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Legal vertical ·

Bar advertising compliance and AI search: what changed for personal injury firms in 2026

AI engines that quote a personal injury firm without proper disclaimers can create indirect bar advertising compliance risk for the firm. The compliance posture extends beyond the firm website to the structured data the firm publishes for AI consumption.

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Primary research ·

Forty US clinic AI visibility audit released as open dataset under CC BY 4.0

A row level dataset covering 40 US specialty medical clinics audited across ChatGPT, Perplexity, Gemini, and Google AI Overviews in Q1 2026 is now available for citation, replication, and independent analysis.

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