The model that wouldn't be forced
My structured output worked by forcing Claude to call a tool that didn't exist. Opus 5.5 stopped playing along, and the fix was to stop doing the trick.
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Anthropic
They switched it off while it was fixing my code
An export-control directive suspended my AI assistant mid-task, which is a useful lesson in what you are actually depending on.
Supporting a provider, or actually using it
A lowest-common-denominator AI interface throws away what each provider is good at. When to route through an abstraction and when to drop below it.
