Prototype validation and proof

ID	M0_PROTOTYPE-IDE_EXTENSION-02
Status	completed
Priority	p1
Milestone	m0-prototype
Owner	ui-design-frontend-dev

Problem

After the initial prototype was built, there were no concrete proof artifacts demonstrating that IDE diagnostics (YAML validation errors, schema warnings) and preview rendering actually worked in realistic conditions. Without repeatable validation steps, it was unclear whether the prototype met the bar for analyst usability or whether critical gaps were being masked by developer-only test scenarios. Stakeholders needed evidence — screenshots, screen recordings, step-by-step repro instructions — before greenlighting the pilot milestone.

Prototype validation and proof

Problem

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