Shawn McBurnie

Accessibility is a reliability concern

Thu, 09 Jul 2026 00:00:00 +0000

Evaluation discipline and accessibility engineering are one posture applied to two substrates. The Reliability Layer’s four runtime concerns already cover accessibility, once you notice that an interface is a system output and a user session is runtime.

AI agents that test accessibility: two skills, released

Wed, 08 Jul 2026 00:00:00 +0000

Two Claude Code skills for agent-driven WCAG testing, released as open source with their test-contracts intact. What agent testing catches, what it cannot, and why the must-not-contain list is the piece worth defending.

Trust and trustworthiness

Thu, 21 May 2026 00:00:00 +0000

AI agents are not trustworthy out of the box, and putting a trust-inspiring face on an untrustworthy system is dangerous. The three barriers to earning user trust - overconfidence, security, and reliability - and why they have to be faced before the face goes on. Part one of two.

The AI Reliability Layer

Wed, 29 Apr 2026 00:00:00 +0000

A four-concern runtime taxonomy (verification, calibration, adversarial robustness, recovery) and a positioned framing of the territory it covers. Engages with the close adjacencies (AI TRiSM, NIST AI RMF, AI SRE).

Veridi methodology: what the numbers actually mean

Sun, 26 Apr 2026 00:00:00 +0000

A deep-dive on the Veridi verification system and the Pragma + Praxis assessment frameworks that run on top of it. Calibration (selective Brier 0.0253, coverage 89%, abstention correctness 11/11, accuracy 99.5%), architecture, gaming countermeasures, limitations, and refinement backlog, grounded in published research.

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